Sample records for traffic conditions prevention

  1. Accident Analysis and Prevention 36 (2004) 933946 Freeway safety as a function of traffic flow

    E-Print Network [OSTI]

    Detwiler, Russell

    2004-01-01T23:59:59.000Z

    Accident Analysis and Prevention 36 (2004) 933­946 Freeway safety as a function of traffic flow of strong relationships between traffic flow conditions and the likelihood of traffic accidents (crashes reserved. Keywords: Traffic safety; Accident rates; Traffic flow; Loop detectors; Speed; Traffic density

  2. An alternative to constant rate link padding for the prevention of traffic analysis

    E-Print Network [OSTI]

    Graham, Bryan Wayne

    2002-01-01T23:59:59.000Z

    approach to prevent traffic analysis has always been constant rate link padding. However, the effectiveness of this method when an adversary has access to advanced monitoring equipment and knowledge of statistical analysis has not been addressed...

  3. February 17, 2005 Traffic: See current conditions on all Valley freeways

    E-Print Network [OSTI]

    McGraw, Kevin J.

    ° Flagstaff 34° |Traffic Weather Site search| | | | | |Front Page Valley & State Sports Business Arizona Wheels Yes Ahwatukee Chandler Gilbert Glendale/Peoria Mesa Phoenix Scottsdale Southwest Valley Sun CitiesFebruary 17, 2005 Traffic: See current conditions on all Valley freeways PHOENIX 56° Tucson 53

  4. IMPACT OF ADVERSE WEATHER ON TRAFFIC CONDITIONS ON AN AMERICAN HIGHWAY

    E-Print Network [OSTI]

    Bertini, Robert L.

    IMPACT OF ADVERSE WEATHER ON TRAFFIC CONDITIONS ON AN AMERICAN HIGHWAY Effect of the Sun Glare ANALYTIQUE NOM PRENOM AUTEUR AUFFRAY Benjamin TITRE DU TFE IMPACT OF AN ADVERSE WEATHER ON AN AMERICAN réf. biblio. : 42 MOTS CLÉS Sun, Glare, Highway, Visibility, Weather, Sunlight, Delay, Traffic

  5. On the Adaptivity of today's Energy-Efficient MAC Protocols under varying Traffic Conditions

    E-Print Network [OSTI]

    Braun, Torsten

    On the Adaptivity of today's Energy-Efficient MAC Protocols under varying Traffic Conditions typically accounts for a major portion of a WSN node's power consumption, researchers have proposed Energy-Efficient. Such protocols typically trade off energy-efficiency versus classical quality of service parameters (e

  6. MODELING THE IMPACT OF TRAFFIC CONDITIONS ON THE VARIABILITY OF

    E-Print Network [OSTI]

    Bertini, Robert L.

    Conditions #12;FINE PARTICULATE MATTER (PM2.5) 4 · Cancer · Heart disease · Increased mortality rates.onsetcomp.com Wind Speed Wind Direction RM Young Ultrasonic Anemometer 81000 photo: www.youngusa.com #12;11 Video.8% increase #12;REGRESSION FINDINGS 19 Vehicles passing when wind blows across roadway towards monitoring

  7. Impact of Traffic States on Freeway Collision Frequency

    E-Print Network [OSTI]

    Yeo, Hwasoo; Jang, Kitae; Skabardonis, Alexander

    2010-01-01T23:59:59.000Z

    interurban motorways, Accident Analysis and Prevention, 34,of traffic flow, Accident Analysis and Prevention, 36, 2004,hourly traffic flow-I: Accident Analysis and Prevention, 14,

  8. Optimization of airport terminal-area air traffic operations under uncertain weather conditions

    E-Print Network [OSTI]

    Pfeil, Diana Michalek

    2011-01-01T23:59:59.000Z

    Convective weather is responsible for large delays and widespread disruptions in the U.S. National Airspace System, especially during summer. Although Air Traffic Flow Management algorithms exist to schedule and route ...

  9. Arterial-street signal timing strategies to provide additional through-traffic capacity during freeway incident conditions

    E-Print Network [OSTI]

    Dale, James Joseph

    1992-01-01T23:59:59.000Z

    relationships identified are likely to be common to other arterial-street sections with similar configurations and traffic patterns. ACKNOWLEDGMENTS This research was funded by Project No. 30, "Fuel Savings from Surveillance, Signing, and Signal Control... timing plan to accommodate diverted traffic from a freeway plays a significant role in the development of integrated freeway and arterial street control systems like the Automated Traffic Surveillance gnd control (ATSAC) system in Los Angeles (Rowe...

  10. Traffic information computing platform for big data

    SciTech Connect (OSTI)

    Duan, Zongtao, E-mail: ztduan@chd.edu.cn; Li, Ying, E-mail: ztduan@chd.edu.cn; Zheng, Xibin, E-mail: ztduan@chd.edu.cn; Liu, Yan, E-mail: ztduan@chd.edu.cn; Dai, Jiting, E-mail: ztduan@chd.edu.cn; Kang, Jun, E-mail: ztduan@chd.edu.cn [Chang'an University School of Information Engineering, Xi'an, China and Shaanxi Engineering and Technical Research Center for Road and Traffic Detection, Xi'an (China)

    2014-10-06T23:59:59.000Z

    Big data environment create data conditions for improving the quality of traffic information service. The target of this article is to construct a traffic information computing platform for big data environment. Through in-depth analysis the connotation and technology characteristics of big data and traffic information service, a distributed traffic atomic information computing platform architecture is proposed. Under the big data environment, this type of traffic atomic information computing architecture helps to guarantee the traffic safety and efficient operation, more intelligent and personalized traffic information service can be used for the traffic information users.

  11. Accident Analysis and Prevention 49 (2012) 1-4 / DOI: 10.1016/j.aap.2012.09.007 Powered two-wheelers within the traffic system

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    2012-01-01T23:59:59.000Z

    Accident Analysis and Prevention 49 (2012) 1-4 / DOI: 10.1016/j.aap.2012.09.007 1 Powered two of risk exposure, accidents factors and impact severity. This special issue of Accident Analysis they are dedicated. hal-00851287,version1-13Aug2013 Author manuscript, published in "Accident Analysis and Prevention

  12. Evaluation of detector placement strategies for first generation traffic responsive signal control

    E-Print Network [OSTI]

    Brehmer, Christopher Lynn

    1996-01-01T23:59:59.000Z

    Traffic responsive signal systems rely on system detector data to evaluate current traffic conditions and select a corresponding timing plan from a library of plans. One of the major decisions surrounding the use of traffic responsive signal systems...

  13. HPSS Yearly Network Traffic

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    growth in network traffic to storage over the years. Network Traffic Growth Network Distribution 2010 Network Distribution 2010 Network Distribution 2009 Network Distribution...

  14. Fermilab | Traffic Safety at Fermilab |

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Submit a SuggestionQuestion Fermilab traffic rules (FESHM 9010) Fermilab traffic accident statistics Traffic safety awareness training Resources Texting While Driving...

  15. U-134: Apache Traffic Server Host Header Processing Flaw Lets Remote Users Deny Service

    Broader source: Energy.gov [DOE]

    A vulnerability was reported in Apache Traffic Server. A remote user can cause denial of service conditions.

  16. Design and testing of a roadside traffic threat alerting mechanism

    E-Print Network [OSTI]

    Powale, Pallavi

    2013-01-01T23:59:59.000Z

    Every year, law enforcement officials, emergency personnel, and other workers stopped in traffic outside their vehicles are struck by inattentive drivers. Until now, most efforts to prevent these types of accidents have ...

  17. Preventing Space Traffic Jams | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you wantJoin us for

  18. Preventing Space Traffic Jams | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMay 2015 < prev next > Sun Mon2015Department

  19. Modeling Traffic Flow Emissions

    E-Print Network [OSTI]

    Cappiello, Alessandra

    2002-09-17T23:59:59.000Z

    The main topic of this thesis is the development of light-duty vehicle dynamic emission models and their integration with dynamic traffic models. Combined, these models

  20. Hybrid Traffic Data Collection Roadmap: Pilot Procurement of Third-Party Traffic Data

    E-Print Network [OSTI]

    Alexandre, Bayen

    2013-01-01T23:59:59.000Z

    Traffic Management Systems PROBE DATA QUALITY VISUALIZATIONin Traffic Management Systems EXTEND PROBE DATA QUALITYquality, accuracy, and availability of traffic data Traffic system management

  1. Predictability of road traffic and congestion in urban areas

    E-Print Network [OSTI]

    Wang, Jingyuan; Li, Jing; Li, Chao; Xiong, Zhang; Wang, Wen-Xu

    2014-01-01T23:59:59.000Z

    Mitigating traffic congestion on urban roads, with paramount importance in urban development and reduction of energy consumption and air pollution, depends on our ability to foresee road usage and traffic conditions pertaining to the collective behavior of drivers, raising a significant question: to what degree is road traffic predictable in urban areas? Here we rely on the precise records of daily vehicle mobility based on GPS positioning device installed in taxis to uncover the potential daily predictability of urban traffic patterns. Using the mapping from the degree of congestion on roads into a time series of symbols and measuring its entropy, we find a relatively high daily predictability of traffic conditions despite the absence of any a priori knowledge of drivers' origins and destinations and quite different travel patterns between weekdays and weekends. Moreover, we find a counterintuitive dependence of the predictability on travel speed: the road segment associated with intermediate average travel ...

  2. Streamlining Transportation Corridor Planning Processess: Freight and Traffic Information

    SciTech Connect (OSTI)

    Franzese, Oscar [ORNL

    2010-08-01T23:59:59.000Z

    The traffic investigation is one of the most important parts of an Environmental Impact Statement of projects involving the construction of new roadway facilities and/or the improvement of existing ones. The focus of the traffic analysis is on the determination of anticipated traffic flow characteristics of the proposed project, by the application of analytical methods that can be grouped under the umbrella of capacity analysis methodologies. In general, the main traffic parameter used in EISs to describe the quality of traffic flow is the Level of Service (LOS). The current state of the practice in terms of the traffic investigations for EISs has two main shortcomings. The first one is related to the information that is necessary to conduct the traffic analysis, and specifically to the lack of integration among the different transportation models and the sources of information that, in general, reside in GIS databases. A discussion of the benefits of integrating CRS&SI technologies and the transportation models used in the EIS traffic investigation is included. The second shortcoming is in the presentation of the results, both in terms of the appearance and formatting, as well as content. The presentation of traffic results (current and proposed) is discussed. This chapter also addresses the need of additional data, in terms of content and coverage. Regarding the former, other traffic parameters (e.g., delays) that are more meaningful to non-transportation experts than LOS, as well as additional information (e.g., freight flows) that can impact traffic conditions and safety are discussed. Spatial information technologies can decrease the negative effects of, and even eliminate, these shortcomings by making the relevant information that is input to the models more complete and readily available, and by providing the means to communicate the results in a more clear and efficient manner. The benefits that the application and use of CRS&SI technologies can provide to improve and expedite the traffic investigation part of the EIS process are presented.

  3. Dynamic Traffic Assignment Incorporating Commuters’ Trip Chaining Behavior

    E-Print Network [OSTI]

    Wang, Wen

    2012-10-19T23:59:59.000Z

    through a fixed-point problem. However, they treated the travel time on links ideally as constants without considering the dynamic traffic conditions. Heydecker and Polak (2006) developed a model of tour scheduling with equilibrium analysis on congested...

  4. EXPERIMENTAL VERIFICATION OF TIME-DEPENDENT ACCUMULATION PREDICTIONS IN CONGESTED TRAFFIC

    E-Print Network [OSTI]

    Smilowitz, Karen

    with a streamlined version of the kinematic wave theory that does not rely on ambiguous traffic stream, it is fair to ask whether these complexities prevent a theory of waves (such as the kinematic wave (KW traffic at random but predictable speeds, i.e., as waves (see e.g. [1-5]), plots of flow-density data have

  5. Pollution Prevention

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Pollution Prevention Pollution Prevention Promoting green purchasing, reuse and recycling, and the conservation of fuel, energy, and water. April 17, 2012 Pollution prevention and...

  6. Pollution Prevention

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Pollution Prevention Goal 5: Pollution Prevention LANL is dedicated to finding ways to reduce waste, prevent pollution, and recycle waste that cannot be reduced. Energy...

  7. Chronic Conditions and Disease Prevention

    E-Print Network [OSTI]

    , diabetes, heart disease and osteoarthritis. One-on-One Nutrition Counseling Help with weight management and supportive program for those who have chronic diseases such as diabetes, heart disease, stroke, arthritis

  8. LUNAR SOIL SIMULATION TRAFFICABILITY PARAMETERS

    E-Print Network [OSTI]

    Rathbun, Julie A.

    LUNAR SOIL SIMULATION and TRAFFICABILITY PARAMETERS by W. David Carrier, III Lunar Geotechnical.0 RECOMMENDED LUNAR SOIL TRAFFICABILITY PARAMETERS Table 9.14 in the Lunar Sourcebook (Carrier et al. 1991, p. 529) lists the current recommended lunar soil trafficability parameters: bc = 0.017 N/cm2 bN = 35° K

  9. EECBG Success Story: Getting Traffic Lights Talking to Improve...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Traffic Lights Talking to Improve Topeka's Traffic Tunnel EECBG Success Story: Getting Traffic Lights Talking to Improve Topeka's Traffic Tunnel October 8, 2010 - 11:16am Addthis...

  10. Traffic Dynamic Instability

    E-Print Network [OSTI]

    Louis Reese; Anna Melbinger; Erwin Frey

    2015-05-05T23:59:59.000Z

    Here we study a driven lattice gas model for microtubule depolymerizing molecular motors, where traffic jams of motors induce stochastic switching between microtubule growth and shrinkage. We term this phenomenon \\enquote{traffic dynamic instability} because it is reminiscent of microtubule dynamic instability [T. Mitchison and M. Kirschner, Nature 312, 237 (1984)]. The intermittent dynamics of growth and shrinking emerges from the interplay between the arrival of motors at the microtubule tip, motor induced depolymerization, and motor detachment from the tip. The switching dynamics correlates with low and high motor density on the lattice. This leads to an effectively bistable particle density in the system. A refined domain wall theory predicts this transient appearance of different phases in the system. The theoretical results are supported by stochastic simulations.

  11. Traffic Dynamic Instability

    E-Print Network [OSTI]

    Reese, Louis; Frey, Erwin

    2015-01-01T23:59:59.000Z

    Here we study a driven lattice gas model for microtubule depolymerizing molecular motors, where traffic jams of motors induce stochastic switching between microtubule growth and shrinkage. We term this phenomenon \\enquote{traffic dynamic instability} because it is reminiscent of microtubule dynamic instability [T. Mitchison and M. Kirschner, Nature 312, 237 (1984)]. The intermittent dynamics of growth and shrinking emerges from the interplay between the arrival of motors at the microtubule tip, motor induced depolymerization, and motor detachment from the tip. The switching dynamics correlates with low and high motor density on the lattice. This leads to an effectively bistable particle density in the system. A refined domain wall theory predicts this transient appearance of different phases in the system. The theoretical results are supported by stochastic simulations.

  12. An investigation into the use of highway traffic signals at highway-railroad grade crossings

    E-Print Network [OSTI]

    Frieslaar, Andre Henry

    1997-01-01T23:59:59.000Z

    2 Highway Speed Limit Classification 3 Light Condition Classification 4 Presence of Drunk Driver Classification 5 Driver Age Group Classification . . 43 50 52 57 LIST OF TABLES TABLE Page 1 Fatal Accidents Based on FARS Traffic Control... Device 2 Traffic Control Comparison between FARS and DOT/AAR Databases. . . 3 Fatal Accident Rates Based on DOT/AAR Traffic Control Device . 4 Driver Related Factor Results 5 FARS Variables Used in Analysis . 6 Driver Related Factor Classification...

  13. Wireless sensor networks for measuring traffic

    E-Print Network [OSTI]

    Varaiya, Pravin

    Wireless sensor networks for measuring traffic University of California, Berkeley Sing Yiu Cheung, Sinem Coleri, and Pravin Varaiya 2 Outline · Traffic measurement · Wireless Sensor Networks · Vehicle wireless sensor networks compete? 7 Outline · Traffic measurement · Wireless Sensor Networks · Vehicle

  14. Artificial Immune System based urban traffic control

    E-Print Network [OSTI]

    Negi, Pallav

    2007-09-17T23:59:59.000Z

    traffic. The traffic was micro-simulated with each car on a two junction road system modeled individually. The cars themselves were programmed with 'personalities' to better simulate real traffic. A novel AIS was developed to detect, predict, and control...

  15. Traffic Safety Facts 2004

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilAElectronic Input Options Gary L. Hirsch SNLMay 20102 HourtoTransportation TRAFFIC

  16. Experiment on ATM traffic analysis

    E-Print Network [OSTI]

    Liang, Chai

    1997-01-01T23:59:59.000Z

    efficiently utilizing the underlying network resources, one must have some proper methods to analyze the performance of the ATM network. In this thesis, we studied the traffic characteristics in the ATM networks and the traffic modeling. To do this, we used...

  17. A FLEXIBLE MODEL FOR TRAFFIC SIMULATION AND

    E-Print Network [OSTI]

    Sanner, Scott

    accurate prediction of macroscopic traffic flows (in con- sistent with kinematic wave theory) under all

  18. Scalability of dynamic traffic assignment

    E-Print Network [OSTI]

    Wen, Yang, Ph. D. Massachusetts Institute of Technology

    2009-01-01T23:59:59.000Z

    This research develops a systematic approach to analyze the computational performance of Dynamic Traffic Assignment (DTA) models and provides solution techniques to improve their scalability for on-line applications for ...

  19. Calibration of Dynamic Traffic Assignment Models with Point-to-Point Traffic Surveillance

    E-Print Network [OSTI]

    Vaze, Vikrant

    Accurate calibration of demand and supply simulators within a dynamic traffic assignment system is critical for consistent travel information and efficient traffic management. Emerging traffic surveillance devices such as ...

  20. Calibration of dynamic traffic assignment models with point-to-point traffic surveillance

    E-Print Network [OSTI]

    Vaze, Vikrant (Vikrant Suhas)

    2007-01-01T23:59:59.000Z

    Accurate calibration of demand and supply simulators within a Dynamic Traffic Assignment (DTA) system is critical for the provision of consistent travel information and efficient traffic management. Emerging traffic ...

  1. V-201: Cisco Intrusion Prevention System SSP Fragmented Traffic...

    Energy Savers [EERE]

    to be dropped. Additionally, if the Cisco ASA with a Cisco IPS SSP software module running an affected version of software is configured in High-Availability mode (HA), a...

  2. Using DTMon to Monitor Transient Flow Traffic Hadi Arbabi and Michele C. Weigle

    E-Print Network [OSTI]

    Weigle, Michele

    call task organizers (TOs) and vehicles equipped with communications devices. TOs use Dedicated Short and changed dynamically by the TOs according to the traffic conditions. In this paper, we evaluate

  3. Suppressing traffic-driven epidemic spreading by edge-removal strategies

    E-Print Network [OSTI]

    Yang, Han-Xin; Wang, Bing-Hong

    2015-01-01T23:59:59.000Z

    The interplay between traffic dynamics and epidemic spreading on complex networks has received increasing attention in recent years. However, the control of traffic-driven epidemic spreading remains to be a challenging problem. In this Brief Report, we propose a method to suppress traffic-driven epidemic outbreak by properly removing some edges in a network. We find that the epidemic threshold can be enhanced by the targeted cutting of links among large-degree nodes or edges with the largest algorithmic betweeness. In contrast, the epidemic threshold will be reduced by the random edge removal. These findings are robust with respect to traffic-flow conditions, network structures and routing strategies. Moreover, we find that the shutdown of targeted edges can effectively release traffic load passing through large-degree nodes, rendering a relatively low probability of infection to these nodes.

  4. Seven Traffic Signals in Two Minutes

    Broader source: Energy.gov [DOE]

    Topeka, Kansas has activated the first of three key traffic corridors to receive a "green light tunnel," a real-time adaptive traffic signal system that synchronizes signals to create a series of...

  5. Built Environmental Correlates of Traffic Collisions 

    E-Print Network [OSTI]

    Yu, Chia-Yuan

    2014-07-01T23:59:59.000Z

    Traffic safety has become an important concern in recent years. Built environmental characteristics have been identified as a critical factor in affecting traffic safety. However, several research gaps remain in the ...

  6. Fermilab | Traffic Safety at Fermilab |

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist.New Mexico Feb. 13, 2013FocusreceivesTraffic Safety Traffic

  7. DATALITE: a Distributed Architecture for Traffic Analysis via Light-weight Traffic Digest

    E-Print Network [OSTI]

    Chao, Jonathan

    DATALITE: a Distributed Architecture for Traffic Analysis via Light-weight Traffic Digest for Traffic Analysis via LIght- weight Traffic digEst, which introduces a set of new distributed algorithms digests (TD's) amongst the network nodes. A TD for N packets only requires O(loglog N) bits of memory

  8. FAA Air Traffic Organization Safety Management

    Broader source: Energy.gov [DOE]

    Presenter: Mark DeNicuolo, Manager Performance and Analyses Air Traffic Organization Safety and Technical Training Federal Aviation Administration

  9. 2001 TRAFFIC ZONE BOUNDARIES Zone Numbers

    E-Print Network [OSTI]

    Toronto, University of

    2001 TRAFFIC ZONE BOUNDARIES Zone Numbers & Detailed Definitions #12;2001 TRAFFIC ZONE BOUNDARIES of Toronto Joint Program in Transportation January 2003 #12;PREFACE This report presents the 2001 traffic zone numbers by local municipalities in the 2001 TTS survey area. The second part presents detailed

  10. May 21, 2014 Local Agency Traffic

    E-Print Network [OSTI]

    Minnesota, University of

    Field Evaluation Traffic Data Collection Processes Study Is there better EQUIPMENT for collecting low Improvements Field Evaluation Traffic Data Collection Processes Study Is there better EQUIPMENT for collecting;Project Overview 2013-2014Local Agency Data Collection 5 · Tested traffic sensors in a low

  11. Preventive Maintenance

    Broader source: Energy.gov [DOE]

    Preventive maintenance aims to sustain and/or extend system lifespan through a set of actions that detect, preclude, or mitigate system degradation. These actions are based on either calendar time or machine run time.

  12. Towards practical implementation of computational solution of the Kinematic -wave Model for simulating traffic-flow scenarios

    E-Print Network [OSTI]

    Kumar, Nishant

    2004-11-15T23:59:59.000Z

    The Kinematic-wave model is one of the models proposed to simulate vehicular traffic. It has not received widespread use because of poor understanding of associated interface conditions and early use of incorrect numerical schemes used. This thesis...

  13. Freeway Short-Term Traffic Flow Forecasting by Considering Traffic Volatility Dynamics and Missing Data Situations

    E-Print Network [OSTI]

    Zhang, Yanru

    2012-10-19T23:59:59.000Z

    , assuming constant variance when perform forecasting. This method does not consider the volatility nature of traffic flow data. This paper demonstrated that the variance part of traffic flow data is not constant, and dependency exists. A volatility model...

  14. Accident Analysis and Prevention 40 (2008) 12441248 Short communication

    E-Print Network [OSTI]

    McLeod, Ian

    2008-01-01T23:59:59.000Z

    Accident Analysis and Prevention 40 (2008) 1244­1248 Short communication Power computations in time the intervention analysis of the policy, it is important to ensure that the statistical tests have enough power in a wide variety of traffic safety intervention analysis applications. Our method is illustrated

  15. Pollution Prevention

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for RenewableSpeedingBiomassPPPOPetroleum38Polaron Behavior in1Pollution Prevention Goal

  16. Transforming Traffic Signals to Support Sustainability

    E-Print Network [OSTI]

    Bertini, Robert L.

    transportation modes · Go beyond minimum design standards · Improve nonmotorized facilities during maintenance trafficed locations #12;· Intersection treatment #12;Graphic by Bill Kloos, City of Port · Traditional

  17. Test instances for the traffic assignment problem

    E-Print Network [OSTI]

    2008-01-08T23:59:59.000Z

    Jan 8, 2008 ... mation on test problems previously used in the literature to facilitate benchmarking. Keywords. Traffic assignment problem, BPR function, ...

  18. A Kinematic Wave Traffic Flow Model for Mixed Traffic H. M. Zhang1

    E-Print Network [OSTI]

    Mease, Kenneth D.

    A Kinematic Wave Traffic Flow Model for Mixed Traffic H. M. Zhang1 Department of Civil-mail: wjin@ucdavis.edu ABSTRACT In this paper we extend the Lighthill-Whitham-Richards kinematic wave traffic kinematic wave model developed by Lighthill, Whitham (3) and Richards (4): t+(V())x=0, V( )Q(). (3

  19. Continuous kinematic wave models of merging traffic flow

    E-Print Network [OSTI]

    Wen-Long Jin

    2010-04-13T23:59:59.000Z

    Merging junctions are important network bottlenecks, and a better understanding of merging traffic dynamics has both theoretical and practical implications. In this paper, we present continuous kinematic wave models of merging traffic flow which are consistent with discrete Cell Transmission Models with various distribution schemes. In particular, we develop a systematic approach to constructing kinematic wave solutions to the Riemann problem of merging traffic flow in supply-demand space. In the new framework, Riemann solutions on a link consist of an interior state and a stationary state, subject to admissible conditions such that there are no positive and negative kinematic waves on the upstream and downstream links respectively. In addition, various distribution schemes in Cell Transmission Models are considered entropy conditions. In the proposed analytical framework, we prove that the stationary states and boundary fluxes exist and are unique for the Riemann problem for both fair and constant distribution schemes. We also discuss two types of invariant merge models, in which local and discrete boundary fluxes are the same as global and continuous ones. With numerical examples, we demonstrate the validity of the analytical solutions of interior states, stationary states, and corresponding kinematic waves. Discussions and future studies are presented in the conclusion section.

  20. Accident Analysis and Prevention 42 (2010) 364371 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    Boggess, May M.

    2010-01-01T23:59:59.000Z

    Accident Analysis and Prevention 42 (2010) 364­371 Contents lists available at ScienceDirect Accident Analysis and Prevention journal homepage: www.elsevier.com/locate/aap Review Age-related safety Keywords: Age factors Truck Traffic accidents/crashes Occupation Safety Statistics a b s t r a c

  1. Pollution Prevention Awards

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Pollution Prevention Awards Pollution Prevention Awards Pollution Prevention awards are presented each year for minimized waste, conserved resources, and other sustainable...

  2. Addendum to 2010 NREL Environmental Performance Report ? Traffic...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Update November 2011 Page 1 of 4 Traffic Mitigation Action Plan 2010 Update Traffic Management A Mitigation Action Plan (MAP), finalized in May 2008, was developed to address...

  3. Network Traffic Analysis and SCADA Security

    E-Print Network [OSTI]

    Hu, Jiankun

    systems are widely used for monitoring and controlling industrial systems including power plants, water of traffic generated. Finally, network traffic monitoring can be used in security management to identify the vulnerabilities of SCADA systems because this 383 © Springer 2010 , Handbook of Information and Communication

  4. Seven Traffic Signals in Two Minutes

    SciTech Connect (OSTI)

    None

    2011-01-01T23:59:59.000Z

    Topeka, KS has activated the first of three key traffic corridors to receive a "green light tunnel," a real-time adaptive traffic signal system that synchronizes signals to create a series of green lights for motorists. The result is fewer stops, less travel time and -- most importantly -- a lot of saved gasoline.

  5. Approaching Real-time Network Traffic Classification

    E-Print Network [OSTI]

    Haddadi, Hamed

    and studies. It serves as the input for Intrusion Detection Systems, provides Class-of-Service (CoS) mapping22 Approaching Real-time Network Traffic Classification ISSN 1470-5559 RR-06-12 October 2006-time Network Traffic Classification Wei Li, Kaysar Abdin, Robert Dann and Andrew Moore Department of Computer

  6. Environmental Conditions Environmental Conditions

    E-Print Network [OSTI]

    Environmental Conditions Environmental Conditions Appendix II The unique geology, hydrology and instream habitat. This chapter examines how environmental conditions in the Deschutes watershed affect, the discussion characterizes the environmental conditions within three watershed areas: the Lower Deschutes

  7. A Learning System for Discriminating Variants of Malicious Network Traffic

    SciTech Connect (OSTI)

    Beaver, Justin M [ORNL; Symons, Christopher T [ORNL; Gillen, Rob [ORNL

    2013-01-01T23:59:59.000Z

    Modern computer network defense systems rely primarily on signature-based intrusion detection tools, which generate alerts when patterns that are pre-determined to be malicious are encountered in network data streams. Signatures are created reactively, and only after in-depth manual analysis of a network intrusion. There is little ability for signature-based detectors to identify intrusions that are new or even variants of an existing attack, and little ability to adapt the detectors to the patterns unique to a network environment. Due to these limitations, the need exists for network intrusion detection techniques that can more comprehensively address both known unknown networkbased attacks and can be optimized for the target environment. This work describes a system that leverages machine learning to provide a network intrusion detection capability that analyzes behaviors in channels of communication between individual computers. Using examples of malicious and non-malicious traffic in the target environment, the system can be trained to discriminate between traffic types. The machine learning provides insight that would be difficult for a human to explicitly code as a signature because it evaluates many interdependent metrics simultaneously. With this approach, zero day detection is possible by focusing on similarity to known traffic types rather than mining for specific bit patterns or conditions. This also reduces the burden on organizations to account for all possible attack variant combinations through signatures. The approach is presented along with results from a third-party evaluation of its performance.

  8. Conditionally Independent Generalized Competing Risks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    is subjected to corrective maintenance (CM) and condition-based preventive maintenance (PM) actions. In order into a state in which it can perform its function again. Preventive maintenance (PM) is carried out when whether the maintenance is preventive or correc- tive. 2. Characterization of the PM-CM process Let Ht

  9. Introducing Traffic Analysis Attacks, Defences and Public Policy Issues. . .

    E-Print Network [OSTI]

    Danezis, George

    Roots Traffic analysis is a key part of signal intelligence and electronic warfare. Michael Hermann, who

  10. Introducing Traffic Analysis George Danezis and Richard Clayton

    E-Print Network [OSTI]

    Danezis, George

    . 2 Military Roots Traffic analysis is a key component of signal intelligence and electronic warfare

  11. Kinematic Wave Models of Network Vehicular Traffic Wenlong Jin

    E-Print Network [OSTI]

    Mease, Kenneth D.

    Kinematic Wave Models of Network Vehicular Traffic By Wenlong Jin B.S. (University of Science Applied Mathematics Kinematic Wave Models of Network Vehicular Traffic Abstract The kinematic wave theory vehicular traffic. In this dissertation, we study kinematic wave models of network traffic, which

  12. Structure Evolution of Dynamic Bayesian Network for Traffic Accident Detection

    E-Print Network [OSTI]

    Cho, Sung-Bae

    Structure Evolution of Dynamic Bayesian Network for Traffic Accident Detection Ju-Won Hwang, Young and the accuracy in a domain of the traffic accident detection. Keywords-structure of dynamic Bayesian network; Bayesian network, evolution I. INTRODUCTION Every year, traffic congestion and traffic accidents have been

  13. Partitioning Complexity in Air Traffic Management Task

    E-Print Network [OSTI]

    Cummings, M. L.

    2006-01-01T23:59:59.000Z

    Cognitive complexity is a term that appears frequently in air traffic control (ATC) research literature, yet there is little principled investigation of the potential sources of cognitive complexity. Three distinctly ...

  14. On traffic analysis attacks and countermeasures

    E-Print Network [OSTI]

    Fu, Xinwen

    2007-04-25T23:59:59.000Z

    . This is true even if some commonly used countermeasures (e.g., link padding) have been deployed. We proposed an alternative effective countermeasure to counter this passive traffic analysis attack. Our extensive experimental results indicated...

  15. The design of a microprogrammed traffic controller

    E-Print Network [OSTI]

    Tietjen, James Leslie

    1973-01-01T23:59:59.000Z

    Subject: Electrical Fngineering THE DESIGN OF A MICROPROGRAMMED TRAFFIC CONTROLLER A Thesis by JAMES LESLIE TIETJEN Approved as to style and content by: ar a o C rttee ea o epartm nt em er m er Mem er em er Mem er August 1973 ABSTRACT... The Design of a Microprogrammed Traffic Controller. (August 1973) James Leslie Tietjen, B. S, , Texas ABM 11niversity Directed By: Dr, V. Thomas Rhyne The purpose of this thesis is to design, simulate, and evaluate a microprogrammed system...

  16. Traffic Impact Study for UMore Park Sand and Gravel Resources Project

    E-Print Network [OSTI]

    Netoff, Theoden

    Traffic Impact Study for UMore Park Sand and Gravel Resources Project City of Rosemount and Empire Figure 13 Existing Lane Geometry and Intersection Control Figure 14 Mitigation Measures for 2011 and 2030 No Build Conditions Figure 15 2011 Build Initial Lane Geometry and Intersection Control Figure 16 2030

  17. Continuous kinematic wave models of merging traffic Wen-Long Jin

    E-Print Network [OSTI]

    Mease, Kenneth D.

    Continuous kinematic wave models of merging traffic flow Wen-Long Jin February 12, 2010 Abstract to admissible conditions such that there are no positive and negative kinematic waves on the upstream waves. Discussions and future studies are presented in the conclusion section. Key words: Kinematic wave

  18. Fuel consumption analyses for urban traffic management

    SciTech Connect (OSTI)

    Bowyer, D.P.; Akcelik, R.; Biggs, D.C.

    1986-12-01T23:59:59.000Z

    A primary output from the fuel consumption research conducted by the Australian Road Research Board (ARRB) is the ARRB Special Report, Guide to Fuel Consumption Analyses. This article briefly summarizes the background of the guide, describes its major features, and considers its relevance to urban traffic management decision. The guide was a result of a technical audit of studies relating to energy consumption in traffic and transport systems. A brief summary of the audit process and findings is given. The guide is intended primarily as an aid to effective use of fuel consumption models in the design of traffic management schemes. The forms of four interrelated fuel consumption models of the guide are described and their likely transferability to various situations is indicated. Each traffic and fuel consumption model is appropriate to a particular scale of traffic system. This link is shown for several selected traffic models. As an example, a discussion of the importance of accurate fuel consumption estimates for the case of priority control at a particular intersection is given.

  19. September 17, 2010 SLIPS, TRIPS, FALLS PREVENTION

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    September 17, 2010 SLIPS, TRIPS, FALLS PREVENTION Slips, trips and falls at UCDHS account for 18 and in an effort to reduce slips, trips and falls we offer the following "best practices" to consider: Be aware on floors Use slip resistant shoes in icy conditions (Home Health visits) SLIP and FALL PREVENTION TEAM

  20. Real-Time Traffic Information for Emergency Evacuation Operations: Phase A Final Report

    SciTech Connect (OSTI)

    Franzese, Oscar [ORNL; Zhang, Li [Mississippi State University (MSU); Mahmoud, Anas M. [Mississippi State University (MSU); Lascurain, Mary Beth [ORNL; Wen, Yi [Mississippi State University (MSU)

    2010-05-01T23:59:59.000Z

    There are many instances in which it is possible to plan ahead for an emergency evacuation (e.g., an explosion at a chemical processing facility). For those cases, if an accident (or an attack) were to happen, then the best evacuation plan for the prevailing network and weather conditions would be deployed. In other cases (e.g., the derailment of a train transporting hazardous materials), there may not be any previously developed plan to be implemented and decisions must be made ad-hoc on how to proceed with an emergency evacuation. In both situations, the availability of real-time traffic information plays a critical role in the management of the evacuation operations. To improve public safety during a vehicular emergency evacuation it is necessary to detect losses of road capacity (due to incidents, for example) as early as possible. Once these bottlenecks are identified, re-routing strategies must be determined in real-time and deployed in the field to help dissipate the congestion and increase the efficiency of the evacuation. Due to cost constraints, only large urban areas have traffic sensor deployments that permit access to some sort of real-time traffic information; any evacuation taking place in any other areas of the country would have to proceed without real-time traffic information. The latter was the focus of this SERRI/DHS (Southeast Region Research Initiative/Department of Homeland Security) sponsored project. That is, the main objective on the project was to improve the operations during a vehicular emergency evacuation anywhere by using newly developed real-time traffic-information-gathering technologies to assess traffic conditions and therefore to potentially detect incidents on the main evacuation routes. Phase A of the project consisted in the development and testing of a prototype system composed of sensors that are engineered in such a way that they can be rapidly deployed in the field where and when they are needed. Each one of these sensors is also equipped with their own power supply and a GPS (Global Positioning System) device to auto-determine its spatial location on the transportation network under surveillance. The system is capable of assessing traffic parameters by identifying and re-identifying vehicles in the traffic stream as those vehicles pass over the sensors. The system of sensors transmits, through wireless communication, real-time traffic information (travel time and other parameters) to a command and control center via an NTCIP (National Transportation Communication for ITS Protocol) -compatible interface. As an alternative, an existing NTCIP-compatible system accepts the real-time traffic information mentioned and broadcasts the traffic information to emergency managers, the media and the public via the existing channels. A series of tests, both in a controlled environment and on the field, were conducted to study the feasibility of rapidly deploying the system of traffic sensors and to assess its ability to provide real-time traffic information during an emergency evacuation. The results of these tests indicated that the prototype sensors are reliable and accurate for the type of application that is the focus of this project.

  1. Automated identification of terminal area air traffic flows and weather related deviations

    E-Print Network [OSTI]

    Ng, Tony M. Eng. Massachusetts Institute of Technology

    2008-01-01T23:59:59.000Z

    Air traffic in terminal air space is very complex, making it very difficult to identify air traffic flows. Finding air traffic flows and flow boundaries are very helpful in analyzing how air traffic would react to weather. ...

  2. Determination of traffic responsive plan selection factors and thresholds using artificial neural networks

    E-Print Network [OSTI]

    Sharma, Anuj

    2004-11-15T23:59:59.000Z

    Traffic congestion has become a menace to civilized society. It degrades air quality, jeopardizes safety and causes delay. Traffic congestion can be alleviated by providing an effective traffic control signal system. Closed-loop traffic control...

  3. CDC Recommendations for Lead Poisoning Prevention in Newly Arrived Refugee Children

    E-Print Network [OSTI]

    CDC Recommendations for Lead Poisoning Prevention in Newly Arrived Refugee Children Lead poisoning remains one of the most common and preventable pediatric environmental conditions even though Poisoning Prevention Branch and Division of Global Migration and Quarantine, in collaboration

  4. Laboratory to change vehicle traffic-screening regimen at vehicle...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Changes to vehicle traffic-screening Laboratory to change vehicle traffic-screening regimen at vehicle inspection station Lanes two through five will be open 24 hours a day and...

  5. automated control traffic: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    technology, are to increase the safety and through-put of the existing highway by traffic automation. Advanced Vehicle Control... Huandra, Rusli 1998-01-01 14 Traffic Control on...

  6. Supporting the Future Air Traffic Control Projection Process

    E-Print Network [OSTI]

    Davison, H. J.

    2003-01-01T23:59:59.000Z

    In air traffic control, projecting what the air traffic situation will be over the next 30 seconds to 30 minutes is a key process in identifying conflicts that may arise so that evasive action can be taken upon discovery ...

  7. Modeling and estimation techniques for understanding heterogeneous traffic behavior

    E-Print Network [OSTI]

    Zhao, Zhili

    2004-09-30T23:59:59.000Z

    The majority of current internet traffic is based on TCP. With the emergence of new applications, especially new multimedia applications, however, UDP-based traffic is expected to increase. Furthermore, multimedia applications have sparkled...

  8. A study of freeway traffic volume control

    E-Print Network [OSTI]

    Smith, Edwin McMurray

    1958-01-01T23:59:59.000Z

    LI8 RARY i & m ceLLCSE el' lEXAe A STUDY GP FRE8NAY TRAFFIC VOLUME CONTROL Mwin McMurray Smith A Thesis Submitteh to the GracLuate School of the Agricultural ant Mechanical College of Texas in partial fulfillment of the requirements...; to Mr. W. H. Carsten, Director, Department of Traffic Control, City of Dallas; to Mr. W. E. Carmichael, District Engineer, Texas Highway Department; and to the Texas Transportation Institute for furnishing the data which were analyzed for this thesis...

  9. INTRODUCTION Several proposals for future air traffic man-

    E-Print Network [OSTI]

    Parasuraman, Raja

    for Aeronautics [RTCA], 1995) and Distributed Air/Ground Traffic Management (DAG-TM; Na- tional Aeronautics

  10. Making the Traffic Operations Case for Congestion Pricing: Operational Impacts of Congestion Pricing

    SciTech Connect (OSTI)

    Chin, Shih-Miao [ORNL; Hu, Patricia S [ORNL; Davidson, Diane [ORNL

    2011-02-01T23:59:59.000Z

    Congestion begins when an excess of vehicles on a segment of roadway at a given time, resulting in speeds that are significantly slower than normal or 'free flow' speeds. Congestion often means stop-and-go traffic. The transition occurs when vehicle density (the number of vehicles per mile in a lane) exceeds a critical level. Once traffic enters a state of congestion, recovery or time to return to a free-flow state is lengthy; and during the recovery process, delay continues to accumulate. The breakdown in speed and flow greatly impedes the efficient operation of the freeway system, resulting in economic, mobility, environmental and safety problems. Freeways are designed to function as access-controlled highways characterized by uninterrupted traffic flow so references to freeway performance relate primarily to the quality of traffic flow or traffic conditions as experienced by users of the freeway. The maximum flow or capacity of a freeway segment is reached while traffic is moving freely. As a result, freeways are most productive when they carry capacity flows at 60 mph, whereas lower speeds impose freeway delay, resulting in bottlenecks. Bottlenecks may be caused by physical disruptions, such as a reduced number of lanes, a change in grade, or an on-ramp with a short merge lane. This type of bottleneck occurs on a predictable or 'recurrent' basis at the same time of day and same day of week. Recurrent congestion totals 45% of congestion and is primarily from bottlenecks (40%) as well as inadequate signal timing (5%). Nonrecurring bottlenecks result from crashes, work zone disruptions, adverse weather conditions, and special events that create surges in demand and that account for over 55% of experienced congestion. Figure 1.1 shows that nonrecurring congestion is composed of traffic incidents (25%), severe weather (15%), work zones, (10%), and special events (5%). Between 1995 and 2005, the average percentage change in increased peak traveler delay, based on hours spent in traffic in a year, grew by 22% as the national average of hours spent in delay grew from 36 hours to 44 hours. Peak delay per traveler grew one-third in medium-size urban areas over the 10 year period. The traffic engineering community has developed an arsenal of integrated tools to mitigate the impacts of congestion on freeway throughput and performance, including pricing of capacity to manage demand for travel. Congestion pricing is a strategy which dynamically matches demand with available capacity. A congestion price is a user fee equal to the added cost imposed on other travelers as a result of the last traveler's entry into the highway network. The concept is based on the idea that motorists should pay for the additional congestion they create when entering a congested road. The concept calls for fees to vary according to the level of congestion with the price mechanism applied to make travelers more fully aware of the congestion externality they impose on other travelers and the system itself. The operational rationales for the institution of pricing strategies are to improve the efficiency of operations in a corridor and/or to better manage congestion. To this end, the objectives of this project were to: (1) Better understand and quantify the impacts of congestion pricing strategies on traffic operations through the study of actual projects, and (2) Better understand and quantify the impacts of congestion pricing strategies on traffic operations through the use of modeling and other analytical methods. Specifically, the project was to identify credible analytical procedures that FHWA can use to quantify the impacts of various congestion pricing strategies on traffic flow (throughput) and congestion.

  11. Gresham/Multnomah County Phase 3 Traffic Signal System Optimization September 2008 Adaptive Traffic Signal Control System Benefits Report

    E-Print Network [OSTI]

    Bertini, Robert L.

    Gresham/Multnomah County Phase 3 Traffic Signal System Optimization September 2008 Adaptive Traffic Signal Control System Benefits Report Page i TTAABBLLEE OOFF CCOONNTTEENNTTSS 1 Executive Summary......................................................................................................................15 2.3.1 System Evaluation

  12. Author's personal copy Gasoline prices and traffic safety in Mississippi

    E-Print Network [OSTI]

    Levinson, David M.

    Author's personal copy Gasoline prices and traffic safety in Mississippi Guangqing Chi a, , Arthur November 2010 Keywords: Gasoline prices Traffic crashes Traffic safety Age Gender Race Problem: Limited literature suggests that gasoline prices have substantial effects on reducing fatal crashes. However

  13. Air Traffic Control Using Virtual Stationary Automata Matthew D. Brown

    E-Print Network [OSTI]

    Lynch, Nancy

    Air Traffic Control Using Virtual Stationary Automata by Matthew D. Brown B.S., Massachusetts by . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Arthur C. Smith Chairman, Department Committee on Graduate Students #12;Air Traffic Control Using Virtual of Engineering Abstract As air travel has become an essential part of modern life, the air traffic control system

  14. Supporting Air Traffic Flow Management with Agents Shawn R. Wolfe

    E-Print Network [OSTI]

    Yorke-Smith, Neil

    Supporting Air Traffic Flow Management with Agents Shawn R. Wolfe Intelligent Systems Division NASA Ames Research Center Moffett Field, CA 94035-1000 Shawn.R.Wolfe@nasa.gov Abstract Air traffic flow an agent-based system to facilitate mutually beneficial air traffic management decisions, and identify

  15. Randomization in Traffic Information Sharing Systems Masaaki Tanizaki

    E-Print Network [OSTI]

    Wolfson, Ouri E.

    , we consider a traffic information sharing system based on Floating Car Data (FCD). FCD is oneRandomization in Traffic Information Sharing Systems Masaaki Tanizaki Intelligent Media Systems to the server. The traffic information sharing system broadcasts speed information updated by such transmission

  16. VEHICLE EMISSIONS AND TRAFFIC MEASURES: EXPLORATORY ANALYSIS OF FIELD

    E-Print Network [OSTI]

    Frey, H. Christopher

    VEHICLE EMISSIONS AND TRAFFIC MEASURES: EXPLORATORY ANALYSIS OF FIELD OBSERVATIONS AT SIGNALIZED between vehicle emissions and traffic control measures is an important step toward reducing the potential roadway design and traffic control, have the ability to reduce vehicle emissions. However, current vehicle

  17. NetViewer: A Network Traffic Visualization and Analysis Tool

    E-Print Network [OSTI]

    Reddy, Narasimha

    . NetViewer can be employed to detect and identify network anomalies such as DoS/DDoS attacks, worms from both the commercial and free soft- ware communities. To study and classify traffic on the network most of the time. In such cases, attack traffic may not induce significant overshoot in traffic volume

  18. Online Calibration for Dynamic Traffic Constantinos Antoniou

    E-Print Network [OSTI]

    Bertini, Robert L.

    On­line Calibration for Dynamic Traffic Assignment Constantinos Antoniou October 5, 2007 Seminar­line DTA framework Demand simulator Supply simulator State estimation and model calibration Network calibration approaches include subset of these models Seminar at Portland State University 3 #12;Constantinos

  19. Does Daylight Savings Time Affect Traffic Accidents?

    E-Print Network [OSTI]

    Deen, Sophia 1988-

    2012-04-20T23:59:59.000Z

    This paper studies the effect of changes in accident pattern due to Daylight Savings Time (DST). The extension of the DST in 2007 provides a natural experiment to determine whether the number of traffic accidents is affected by shifts in hours...

  20. Performance Analysis of Isolated Intersection Traffic Signals 

    E-Print Network [OSTI]

    Yin, Kai

    2013-08-01T23:59:59.000Z

    This dissertation analyzes two unsolved problems to fulfill the gap in the literature: (1). What is the vehicle delay and intersection capacity considering left-turn traffic at a pre-timed signal? (2). What are the mean and variance of delay...

  1. Smart-card traffic system keeps Singapore

    E-Print Network [OSTI]

    Hunt, Julian

    Smart-card traffic system keeps Singapore in the fast lane Sir -- Recognizing the high economic tariffs from a smart card installed in a slot near the vehicle's windscreen. Infringement is registered. For expressways and approach routes leading to the city, a tiered pricing scheme operates during the peak period

  2. Performance Analysis of Isolated Intersection Traffic Signals

    E-Print Network [OSTI]

    Yin, Kai

    2013-08-01T23:59:59.000Z

    This dissertation analyzes two unsolved problems to fulfill the gap in the literature: (1). What is the vehicle delay and intersection capacity considering left-turn traffic at a pre-timed signal? (2). What are the mean and variance of delay...

  3. Variability in continuous traffic monitoring data

    SciTech Connect (OSTI)

    Wright, T.; Hu, P.S. [Oak Ridge National Lab., TN (United States); Young, J. [Tennessee Univ., Knoxville, TN (United States)

    1996-07-01T23:59:59.000Z

    Each state in the United States can be viewed as a universe of road segments. For each road segment in each state, it is desired to know various traffic characteristics based on count data, classification count data, and weigh-in-motion data. These data are absolutely essential for highway design, maintenance, safety, and planning. Given no cost constraints, each road segment would be continuously monitored every day of the year. However, in practice, a few road segments are monitored continuously every day of the year to produce annual characteristics of traffic flow. The remaining road segments are monitored for one or two days each year, and this resulting data are `adjusted` (using factors based on data collected from the continuously monitored road segments) to produce estimates of annual characteristics. With this general approach, each state strives to provide estimates of annual characteristics for each road segment within its jurisdiction. In 1985, the Federal Highway Administration (FHWA) published the Traffic Monitoring Guide to assist states in achieving this end. As with almost any data collection effort, the monitoring data suffers from errors from many sources. In this paper, we report some empirical findings in a research project sponsored by the FHWA. This research project studied the variability in the traffic data from the continuously monitored road segments from state(s) and, the extent to which this variability is transferred to and affects the precision of the data produced from the road segments which are monitored only one or two days each year. The ultimate hope is that states will eventually be able to not only publish an estimate of a characteristic such as Average Annual Daily Traffic (AADT) for each road segment, but also that each estimate will be accompanied by a statement expressing how good the estimate is in terms of its estimated variability or precision, which will likely be expressed as a coefficient of variation.

  4. Optimizing Preventive Maintenance Models

    E-Print Network [OSTI]

    Optimizing Preventive Maintenance Models. Michael Bartholomew-Biggs. School of Physics Astronomy and Mathematics, University of Hertfordshire.

  5. awareness and pollution prevention

    E-Print Network [OSTI]

    Tsien, Roger Y.

    Hazard awareness and pollution prevention for contractors and visitors at UCSD #12;Hazard Awareness and Pollution Prevention For Contractors and Visitors at UC San Diego This booklet was developed by UC San Diego ..............................................5 Storm Water Pollution Prevention.....................5 Sanitary Sewer System Management

  6. Metropolitan Road Traffic Simulation on FPGAs.

    SciTech Connect (OSTI)

    Tripp J. L. (Justin L.); Mortveit, H. S. (Henning S.); Hansson, A. A. (Anders A.); Gokhale, M. (Maya)

    2005-01-01T23:59:59.000Z

    This work demonstrates that road traffic simulation of entire metropolitan areas is possible with reconfigurable supercomputing that combines 64-bit microprocessors and FPGAs in a high bandwidth, low latency interconnect. Previously, traffic simulation on FPGAs was limited to very short road segments or required a very large number of FPGAs. Our data streaming approach overcomes scaling issues associated with direct implementations and still allows for high-level parallelism by dividing the data sets between hardware and software across the reconfigurable supercomputer. Using one FPGA on the Cray XD1 supercomputer, we are able to achieve a 34.4 x speed up over the AMD microprocessor. System integration issues must be optimized to exploit this speedup in the overall simulation.

  7. FPGA Based Real-time Network Traffic Analysis using Traffic Dispersion Patterns

    SciTech Connect (OSTI)

    Khan, F; Gokhale, M; Chuah, C N

    2010-03-26T23:59:59.000Z

    The problem of Network Traffic Classification (NTC) has attracted significant amount of interest in the research community, offering a wide range of solutions at various levels. The core challenge is in addressing high amounts of traffic diversity found in today's networks. The problem becomes more challenging if a quick detection is required as in the case of identifying malicious network behavior or new applications like peer-to-peer traffic that have potential to quickly throttle the network bandwidth or cause significant damage. Recently, Traffic Dispersion Graphs (TDGs) have been introduced as a viable candidate for NTC. The TDGs work by forming a network wide communication graphs that embed characteristic patterns of underlying network applications. However, these patterns need to be quickly evaluated for mounting real-time response against them. This paper addresses these concerns and presents a novel solution for real-time analysis of Traffic Dispersion Metrics (TDMs) in the TDGs. We evaluate the dispersion metrics of interest and present a dedicated solution on an FPGA for their analysis. We also present analytical measures and empirically evaluate operating effectiveness of our design. The mapped design on Virtex-5 device can process 7.4 million packets/second for a TDG comprising of 10k flows at very high accuracies of over 96%.

  8. Chaos control in traffic flow models

    E-Print Network [OSTI]

    Elman Mohammed Shahverdiev; Shin-ichi Tadaki

    1998-11-30T23:59:59.000Z

    Chaos control in some of the one- and two-dimensional traffic flow dynamical models in the mean field theory is studied.One dimensional model is investigated taking into account the effect of random delay. Two dimensional model takes into account the effects of overpasses, symmetric distribution of cars and blockages of cars moving in the same direction. Chaos synchronization is performed within both replica and nonreplica approaches, and using parameter perturbation method.

  9. Bicycle traffic planning and design criteria

    E-Print Network [OSTI]

    Vathana, Jhirasak

    1975-01-01T23:59:59.000Z

    for bicycle facilities, 34 15 16 17 18 19 20 21 Bicycle and wheelchair ramp, Curb drain opening spacings Bicycle facility extruded curb Curb drain opening spacing. Bicycle facility signing. Motor vehicle directed warning signs' Regulatory signs... design: Bicycle facility on 59 an arterial street crossing a collector street. The bicycle facility is separated from motor vehicle traffic by strip, 32 German intersection design: bicycle facility on 60 an arterial street crossing a collector street...

  10. A Model and Case Study of the Impacts of Stochastic Capacity on Freeway Traffic Flow Benefits and Costs

    E-Print Network [OSTI]

    Bertini, Robert L.

    and Costs Alexander Bigazzi1 and Dr. Miguel Figliozzi2 1 Department of Civil and Environmental Engineering conditions with the accompanying heavy congestion costs. As the traffic volume at which flow breaks down is uncertain, this research utilizes a stochastic capacity model to estimate congestion costs in terms

  11. IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 49, NO. 5, SEPTEMBER 2000 1633 Mobility Modeling and Traffic Analysis

    E-Print Network [OSTI]

    Sung, Dan Keun

    IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 49, NO. 5, SEPTEMBER 2000 1633 Mobility Modeling future personal communications services, we need to solve various mobility/traffic problems in one, we extend the previous 3-D indoor mobility modeling by considering the proper boundary conditions

  12. Traffic flow wide-area surveillance system definition

    SciTech Connect (OSTI)

    Allgood, G.O.; Ferrell, R.K.; Kercel, S.W.; Abston, R.A.; Carnal, C.L. [Oak Ridge National Lab., TN (United States); Moynihan, P.I. [Jet Propulsion Lab., Pasadena, CA (United States)

    1994-11-01T23:59:59.000Z

    Traffic Flow Wide-Area Surveillance (TFWAS) is a system for assessing the state of traffic flow over a wide area for enhanced traffic control and improved traffic management and planning. The primary purpose of a TFWAS system is to provide a detailed traffic flow description and context description to sophisticated traffic management and control systems being developed or envisioned for the future. A successful TFWAS system must possess the attributes of safety, reconfigurability, reliability, and expandability. The primary safety premise of TFWAS is to ensure that no action or failure of the TFWAS system or its components can result in risk of injury to humans. A wide variety of communication techniques is available for use with TFWAS systems. These communication techniques can be broken down into two categories, landlines and wireless. Currently used and possible future traffic sensing technologies have been examined. Important criteria for selecting TFWAS sensors include sensor capabilities, costs, operational constraints, sensor compatibility with the infrastructure, and extent. TFWAS is a concept that can take advantage of the strengths of different traffic sensing technologies, can readily adapt to newly developed technologies, and can grow with the development of new traffic control strategies. By developing innovative algorithms that will take information from a variety of sensor types and develop descriptions of traffic flows over a wide area, a more comprehensive understanding of the traffic state can be provided to the control system to perform the most reasonable control actions over the entire wide area. The capability of characterizing the state of traffic over an entire region should revolutionize developments in traffic control strategies.

  13. Traffic congestion forecasting model for the INFORM System. Final report

    SciTech Connect (OSTI)

    Azarm, A.; Mughabghab, S.; Stock, D.

    1995-05-01T23:59:59.000Z

    This report describes a computerized traffic forecasting model, developed by Brookhaven National Laboratory (BNL) for a portion of the Long Island INFORM Traffic Corridor. The model has gone through a testing phase, and currently is able to make accurate traffic predictions up to one hour forward in time. The model will eventually take on-line traffic data from the INFORM system roadway sensors and make projections as to future traffic patterns, thus allowing operators at the New York State Department of Transportation (D.O.T.) INFORM Traffic Management Center to more optimally manage traffic. It can also form the basis of a travel information system. The BNL computer model developed for this project is called ATOP for Advanced Traffic Occupancy Prediction. The various modules of the ATOP computer code are currently written in Fortran and run on PC computers (pentium machine) faster than real time for the section of the INFORM corridor under study. The following summarizes the various routines currently contained in the ATOP code: Statistical forecasting of traffic flow and occupancy using historical data for similar days and time (long term knowledge), and the recent information from the past hour (short term knowledge). Estimation of the empirical relationships between traffic flow and occupancy using long and short term information. Mechanistic interpolation using macroscopic traffic models and based on the traffic flow and occupancy forecasted (item-1), and the empirical relationships (item-2) for the specific highway configuration at the time of simulation (construction, lane closure, etc.). Statistical routine for detection and classification of anomalies and their impact on the highway capacity which are fed back to previous items.

  14. Optimization Online - Test instances for the traffic assignment problem

    E-Print Network [OSTI]

    Frédéric Babonneau

    Abstract: This short note on the Traffic Assignment Problem (TAP) provides the relevant information on test problems previously used in the literature to facilitate

  15. actuated traffic signal controllers: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ramanan Venkat 2012-01-01 8 UNCORRECTED 2 Stochastic adaptive control model for traffic signal systems Environmental Sciences and Ecology Websites Summary: process. The model...

  16. average daily traffic: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Next Page Last Page Topic Index 1 April 2014 Annual Average DailyTraffic (AADT) is a key input in operations and transportation planning Environmental Sciences and Ecology...

  17. Measurements of Diesel Truck Traffic Associated with Goods Movement

    E-Print Network [OSTI]

    Houston, Douglas; Krudysz, Margaret; Winer, Arthur

    2007-01-01T23:59:59.000Z

    Concentrations of PM2.5 and Diesel Exhaust Particles onPatterns of Measured Port Diesel Traffic. (a) Intersectionof particulate emissions from diesel engines: a review’, J.

  18. adaptive traffic flow: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    C; Sahni, Onkar; Shephard, Mark S; Jansen, Kenneth E 2014-01-01 143 The inhomogeneous kinematic wave traffic flow model as a resonant nonlinear system Engineering Websites...

  19. LEAD POISONING PREVENTION INFORMATION

    E-Print Network [OSTI]

    Families AreForever LEAD POISONING PREVENTION INFORMATION FOR PARENTS & PROSPECTIVE-lead levels There is no safe level of lead in the body. Often, symptoms are not obvious, so lead poisoning's medical examination in the U.S. or contact your state or local Childhood Lead Poisoning Prevention Program

  20. Primary Prevention of Hypertension

    E-Print Network [OSTI]

    Bandettini, Peter A.

    Primary Prevention of Hypertension: Clinical and Public Health Advisory from the National High NIH PUBLICATION NO. 02-5076 NOVEMBER 2002 Primary Prevention of Hypertension: Clinical and Public OF HYPERTENSION CLINICAL AND PUBLIC HEALTH ADVISORY FROM THE NATIONAL HIGH BLOOD PRESSURE EDUCATION PROGRAM

  1. National Osteoporosis Prevention Month

    E-Print Network [OSTI]

    MAY National Osteoporosis Prevention Month JUNE National Dairy Month Texas AgriLife Extension - Bone Health Power Point # P4-1 Eat Smart for Bone Health # P4-2 Osteoporosis Disease Statistics # P4-3 Osteoporosis = Porous Bones # P4-4 Risk Factors # P4-5 Risk Factors (continued) # P4-6 Steps to Prevention # P4

  2. Circulating fibrocytes traffic to the lungs in response to CXCL12 and mediate fibrosis

    E-Print Network [OSTI]

    2004-01-01T23:59:59.000Z

    fibrocytes traffic to the lungs in response to CXCL12 andto CXCL12 and traffics to the lungs in a murine model of+ fibrocytes also traffic to the lungs in response to a

  3. Road traffic accidents in Kathmandu¿an hour of education yields a glimmer of hope

    E-Print Network [OSTI]

    Basnet, Bibhusan; Vohra, Rais; Bhandari, Amit; Pandey, Subash

    2013-01-01T23:59:59.000Z

    et al. : Road traffic accidents in Kathmandu— an hour ofOpen Access Road traffic accidents in Kathmandu—an hour ofnumber of road traffic accidents in the year 2012 decreased

  4. Post processing large integer programming problems in air traffic flow management

    E-Print Network [OSTI]

    Gangadharan, Rajesh

    1994-01-01T23:59:59.000Z

    The Federal Aviation Administration is keen to develop new strategies for air traffic control, in order to better tackle the numerous problems arising due to increasing traffic in the national air space. The Traffic Flow Management (TFM) problem...

  5. Cyclist route choice, traffic-related air pollution, and lung function: a scripted exposure study

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    choice, traffic-related air pollution, and lung function: aexposure to traffic-related air pollution on respiratory andR: Traffic- related air pollution and acute changes in heart

  6. Multimedia Traffic Routing in Multilayer WDM Networks

    E-Print Network [OSTI]

    Amphawan, Angela; Hasan, Hassanuddin

    2012-01-01T23:59:59.000Z

    The advent of real-time multimedia services over the Internet has stimulated new technologies for expanding the information carrying capacity of optical network backbones. Multilayer wavelength division multiplexing (WDM) packet switching is an emerging technology for increasing the bandwidth of optical networks. Two algorithms for the routing of the multimedia traffic flows were applied: (i) Capacitated Shortest Path First (CSPF) routing, which minimizes the distance of each flow linking the given source and destination nodes and satisfying capacity constraints; and (ii) Flow Deviation Algorithm (FDA) routing, which minimizes the network?wide average packet delay.

  7. Traffic lights for crop-based biofuels

    E-Print Network [OSTI]

    Phalan, Ben

    Traffic lights for crop-based biofuels Ben Phalan Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK Email: btp22@cam.ac.uk Nobody likes to have limits put on their freedom. However, in all areas of life... of having to slow down is an acceptable price to pay if it reduces the number of pedestrians killed and injured. How is this relevant to biofuels? There are many different kinds of biofuels, including some with considerable potential to generate cleaner...

  8. Hanford Traffic Safety FAQs - Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cn SunnybankD.jpgHanford LEED&soil Hanford Traffic Department

  9. NAC 484 - Traffic Laws | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall, Pennsylvania: Energy Resources Jump to:MuskingumMyers-4 Jump-84 - Traffic Laws

  10. 202 Int. J. Security and Networks, Vol. 2, Nos. 3/4, 2007 LIP: a lightweight interlayer protocol for preventing

    E-Print Network [OSTI]

    Zhu, Sencun

    , DDoS attack prevention and worm detection. Ali R. Hurson is a Professor in the Department of Computer by compromised nodes. Through detailed simulation study, we show that LIP is scalable, and it incurs small bandwidth overhead as well as little impact on the traffic delivery ratio even in the case of high node

  11. A mathematical model and descent algorithm for bilevel traffic management

    E-Print Network [OSTI]

    Patriksson, Michael

    variables enter as parameters in the travel costs. We consider a (small) variety of model settings, and interpret their workings in terms of the traffic network. Key words: Traffic equilibrium; Stackelberg game derivative; Armijo line search; stationary point. 1 Introduction The need for measures to reduce congestion

  12. AN UNSCENTED KALMAN FILTER FOR FREEWAY TRAFFIC ESTIMATION

    E-Print Network [OSTI]

    Mihaylova, Lyudmila

    AN UNSCENTED KALMAN FILTER FOR FREEWAY TRAFFIC ESTIMATION L. Mihaylova , R. Boel and A. Hegyi at boundaries between some segments and averaged within regular time intervals. An Unscented Kalman filter state. Keywords: macroscopic traffic models, unscented Kalman filter, particle filter 1. INTRODUCTION

  13. Model Reference Adaptive Control Framework for Real Time Traffic

    E-Print Network [OSTI]

    Minnesota, University of

    Adaptive Control #12;12 Prescriptive Dynamic Traffic Assignment A Prediction Model and the Reference ModelModel Reference Adaptive Control Framework for Real Time Traffic Management Under Emergency Movement Volume Adaptive Controller Model Reference Adaptive Control (MRAC) Assumptions Super Zone Concept

  14. Hybrid Control Models of Next Generation Air Traffic Management ?

    E-Print Network [OSTI]

    Pappas, George J.

    Hybrid Control Models of Next Generation Air Traffic Management ? C. Tomlin, G. Pappas, J. Lygeros of California at Berkeley Berkeley, CA 94720 Abstract. The study of hierarchical, hybrid control systems by today's Air Traffic Control (ATC), a ground­based system which routes aircraft along predefined jet ways

  15. Joint Traffic Blocking and Routing under Network Failures and Maintenances

    E-Print Network [OSTI]

    Liu, Yong

    Joint Traffic Blocking and Routing under Network Failures and Maintenances Chao Liang ECE Dept paths. Therefore, it is important to design ingress traffic blocking and routing jointly to achieve a good balance between the two factors. Working towards this goal, we formulate a joint ingress blocking

  16. Jetway: Minimizing Costs on Inter-Datacenter Video Traffic

    E-Print Network [OSTI]

    Li, Baochun

    Jetway: Minimizing Costs on Inter-Datacenter Video Traffic Yuan Feng, Baochun Li Department deploy a number of datacenters inter-connected by high-capacity links, spanning different geographical by ISPs, such inter-datacenter video traffic incurs substantial operational costs to a cloud provider

  17. Top-percentile traffic routing problem by Dynamic Programming

    E-Print Network [OSTI]

    Grothey, Andreas

    Top-percentile traffic routing problem by Dynamic Programming Andreas Grothey, Xinan Yang School according to top-percentile pricing. We call this problem the Top-percentile Traffic Routing Problem (Tp problem, which is hard to solve due to the integer variables introduced by top-percentile pricing. Several

  18. Statistical traffic classification by Boosting Support Vector Machines

    E-Print Network [OSTI]

    Statistical traffic classification by Boosting Support Vector Machines Gabriel Gómez Sena Facultad years, traffic classification based on the statistical properties of flows has become an important topic. In this paper we statistically analyze the data length of the first few segments exchanged by a transport flow

  19. Geometric Programming and Mechanism Design for Air Traffic Conflict Resolution

    E-Print Network [OSTI]

    Pappas, George J.

    methods in air traffic control. The problem considered concerns the scheduling of the crossing times traffic controller (ATC). In this setting, numerous conflict resolution methods have been proposed have different valuations for the additional delays imposed by the ATC, and might be willing

  20. California Says''Go'' to Energy-Saving Traffic Lights

    SciTech Connect (OSTI)

    Not Available

    2004-05-01T23:59:59.000Z

    DOE's State Energy Program published this case study in conjunction with the California Energy Commission. It describes the growing use of traffic lights employing the technology of light emitting diodes, or LEDs. Such traffic lights use less energy and produce a brighter illumination.

  1. Increasing Air Traffic: What is the Problem? Areski Hadjaz

    E-Print Network [OSTI]

    Boyer, Edmond

    Increasing Air Traffic: What is the Problem? Areski Hadjaz Thales Air Systems, Rungis, France Email: areski.hadjaz@thalesgroup.com Ga´etan Marceau Thales Air Systems and TAO, Rungis, France Email: gaetan efforts are made to modernize the air traffic management systems to cope with uncertainty, complexity

  2. Traffic Analysis: From Stateful Firewall to Network Intrusion Detection System

    E-Print Network [OSTI]

    Chiueh, Tzi-cker

    1 Traffic Analysis: From Stateful Firewall to Network Intrusion Detection System Fanglu Guo Tzi normalization. Index Terms Packet (traffic) analysis, stateful firewall, network intrusion detection system intrusion detection system (NIDS). Stateful firewall analyzes packets up to their layer 4 headers while NIDS

  3. Guest Editorial Traffic classification and its applications to modern networks

    E-Print Network [OSTI]

    Mellia, Marco

    , such as the enforcement of quality of service guarantees or traffic engineering, and of security issues such as intrusion use of encryption techniques, make the measurement, analysis and classifica- tion of Internet traffic are being published here: ``Targeting Spam Control on Middleboxes: Spam Detection Based on Layer-3 E- mail

  4. V-201: Cisco Intrusion Prevention System SSP Fragmented Traffic Denial of

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2, 2015 -Helicopter-Japan Joint NuclearDepartment ofEnergy|Service

  5. V-201: Cisco Intrusion Prevention System SSP Fragmented Traffic Denial of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your DensityEnergy U.S.-China Electric Vehicle and03/02 TUE 08:59Capability

  6. Traffic Light Protocol: WHITE Traffic Light Protocol: WHITE (information may be distributed without restriction, subject to copyright controls.)

    E-Print Network [OSTI]

    Thomas, Andrew

    the event for their gain. The Threats: Internet watch groups and cyber security experts have already potential cyber threats please visit the Center for Internet Security website at CISecurity.org. #12;Traffic Light Protocol: WHITE Traffic Light Protocol: WHITE (information may be distributed without

  7. Detection, Prevention and Mitigation of Cascading Events

    E-Print Network [OSTI]

    of automatic control and protection systems in preventing, slowing, or mitigating the impact of a large controllers that respond to unforeseen operating conditions to keep power system problems from cascading and control the effects of instability events in large electric power systems. This research produced a real

  8. CDC Lead Poisoning Prevention and Treatment Recommendations for Refugee Children

    E-Print Network [OSTI]

    CDC Lead Poisoning Prevention and Treatment Recommendations for Refugee Children 1. Background: · Lead poisoning remains one of the most common and preventable pediatric environmental conditions in the United States. · Lead is a poison that affects virtually every system in the human body. · Lead

  9. A study and comparison of traffic assignment methods

    E-Print Network [OSTI]

    McIver, Jes David

    1956-01-01T23:59:59.000Z

    OF SCIENCE January 1956 Ma)or Sub]ect: Civil Engineering LIBRARY I S IS CIILLEOE OF TEXAS A STUDY AND COMPARISON OF TRAFFIC ASSIGNFIENT IIETHODS A Thesd. s by JES DAVID MCIVER Approved as to style and content by: p/ / ~ Chairman of Committee Head... Traffic Assignment by Brown's and Related Methods g8 LIST OF FIGURES Figure ~Ne ~Ttle Page Number Total . 'iotor Vehicle Travel in the United States Relation of Traffio on Raine Turnpike to That on U S 1, By Years 10 Traffic Diversion Curves...

  10. The impact of gasoline price changes on traffic safety: a time geography explanation Guangqing Chi a,

    E-Print Network [OSTI]

    Levinson, David M.

    The impact of gasoline price changes on traffic safety: a time geography explanation Guangqing Chi, United States a r t i c l e i n f o Keywords: Time geography Gasoline prices Traffic safety Traffic crashes Fatal crashes Space­time path a b s t r a c t The impact of gasoline price changes on traffic

  11. Visualization of Traffic Flow and Atmospheric Pollutant Flow in Urban Areas

    E-Print Network [OSTI]

    Tokyo, University of

    and air pollutants using polygons and translucent particles. The system is applied for public roads around.transport.iis.u-tokyo.ac.jp CCity modelity model Air pollutionAir pollution simsim.. TrafficTraffic simsim.. CCity modelity model Air pollutionAir pollution simsim.. TrafficTraffic simsim.. #12;

  12. Emergency evacuation/transportation plan update: Traffic model development and evaluation of early closure procedures. Final report

    SciTech Connect (OSTI)

    NONE

    1993-10-28T23:59:59.000Z

    Prolonged delays in traffic experienced by Laboratory personnel during a recent early dismissal in inclement weather, coupled with reconstruction efforts along NM 502 east of the White Rock Wye for the next 1 to 2 years, has prompted Los Alamos National Laboratory (LANL) to re-evaluate and improve the present transportation plan and its integration with contingency plans maintained in other organizations. Facilities planners and emergency operations staff need to evaluate the transportation system`s capability to inefficiently and safely evacuate LANL under different low-level emergency conditions. A variety of potential procedures governing the release of employees from the different technical areas (TAs) requires evaluation, perhaps with regard to multiple emergency-condition scenarios, with one or more optimal procedures ultimately presented for adoption by Lab Management. The work undertaken in this project will hopefully lay a foundation for an on-going, progressive transportation system analysis capability. It utilizes microscale simulation techniques to affirm, reassess and validate the Laboratory`s Early Dismissal/Closure/Delayed Opening Plan. The Laboratory is required by Federal guidelines, and compelled by prudent practice and conscientious regard for the welfare of employees and nearby residents, to maintain plans and operating procedures for evacuation if the need arises. The tools developed during this process can be used outside of contingency planning. It is anticipated that the traffic models developed will allow site planners to evaluate changes to the traffic network which could better serve the normal traffic levels. Changes in roadway configuration, control strategies (signalization and signing), response strategies to traffic accidents, and patterns of demand can be modelled using the analysis tools developed during this project. Such scenarios typically are important considerations in master planning and facilities programming.

  13. UNCORRECTED 2 Stochastic adaptive control model for traffic signal systems

    E-Print Network [OSTI]

    Detwiler, Russell

    UNCORRECTED PROOF 1 2 Stochastic adaptive control model for traffic signal systems 3 X.-H. Yu a,1 , W.W. Recker b,* 4 a Department of Electrical Engineering, California Polytechnic State University

  14. Intelligent Cruise Control design based on a traffic flow specification

    E-Print Network [OSTI]

    Huandra, Rusli

    1998-01-01T23:59:59.000Z

    The principal objectives of the Automated Highway graphics. System (AHS), an Intelligent Transportation System (ITS) technology, are to increase the safety and through-put of the existing highway by traffic automation. Advanced Vehicle Control...

  15. Traffic Synchronization and Management for Energy Savings 5-18...

    Broader source: Energy.gov (indexed) [DOE]

    the corridor, and it's seven or eight traffic signals. You can also see the camera on the signal pole. The next slide is another view of the area, where you can also see the camera...

  16. accidents traffic: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    specifically, three distinct studies (more) OShields, Lara Lynn 2007-01-01 2 Does Daylight Savings Time Affect Traffic Accidents? Texas A&M University - TxSpace Summary: This...

  17. Decision support systems for automated terminal area air traffic control

    E-Print Network [OSTI]

    Pararas, John Demetrios

    1982-01-01T23:59:59.000Z

    This work studies the automation of the terminal area Air Traffic Management and Control (ATM/C) system. The ATM/C decision-making process is analyzed and broken down into a number of "automation functions". Each of these ...

  18. area traffic signal control: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    technology, are to increase the safety and through-put of the existing highway by traffic automation. Advanced Vehicle Control... Huandra, Rusli 1998-01-01 102 Evaluation of...

  19. automated mixed traffic: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    technology, are to increase the safety and through-put of the existing highway by traffic automation. Advanced Vehicle Control... Huandra, Rusli 1998-01-01 46 Cognitive Engineering...

  20. Evaluation of teenage driver understanding of traffic control devices

    E-Print Network [OSTI]

    Ford, Garry Lee

    1999-01-01T23:59:59.000Z

    This research documents the evaluation of teenage graphics. drivers with regards to their understanding of 53 traffic control devices. A multiple choice survey was developed and administered to a group of teenage drivers between 15 and 18 years...

  1. airport traffic: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    as a benchmark in the 4th International Planning Competition. Sebastian Trg; Jrg Hoffmann; Bernhard Nebel 2004-01-01 10 Towards a Market Mechanism for Airport Traffic Control...

  2. Intelligent Cruise Control design based on a traffic flow specification 

    E-Print Network [OSTI]

    Huandra, Rusli

    1998-01-01T23:59:59.000Z

    The principal objectives of the Automated Highway graphics. System (AHS), an Intelligent Transportation System (ITS) technology, are to increase the safety and through-put of the existing highway by traffic automation. Advanced Vehicle Control...

  3. Notes and comments Impacts of traffic heterogeneity on roadside air

    E-Print Network [OSTI]

    Illinois at Chicago, University of

    a discrete traffic kinematic wave model formulated by Daganzo (1994, 1995). This model provides a cell-based solution, termed the cell-transmission (CT) recipe, to the kinematic wave model. It introduces a simplistic

  4. Using Map Matching for an Online Traffic Congestion Application 

    E-Print Network [OSTI]

    Day, Madeleine

    2010-11-24T23:59:59.000Z

    Optimising the flow of traffic on road networks can be achieved through sharing information about congestion events to road users. Using GPS sensors to track vehicle movements can provide information to monitor speeds ...

  5. Development and Evaluation of a Novel Traffic Friendly Commuter Vehicle

    E-Print Network [OSTI]

    Minnesota, University of

    Development and Evaluation of a Novel Traffic Friendly Commuter Vehicle Rajesh Rajamani Department What solutions do researchers in the automotive industry and researchers in the vehicle dynamics lanes - Vehicles will travel together in closely- packed "platoons". Dedicated to automated vehicles

  6. Characterization of network traffic on a local area network

    E-Print Network [OSTI]

    Suravarapu, Prasad Devi

    1995-01-01T23:59:59.000Z

    In this thesis we analyze network traffic on a local area network in an academic environment. We analyze the trace based on transport-level and network-level applications. Networks conversations are studied using the newly developed packet...

  7. Anti-eavesdropping communication layer to protect against traffic analysis

    E-Print Network [OSTI]

    Shen, Yiping

    2002-01-01T23:59:59.000Z

    In this thesis, we present unicast and multicast protocols to resist eavesdropping and traffic profiling of group communications. At the application layer, we propose a secret-sharing approach for the exchange of shared keys. That is, multicast...

  8. Optimization Online - Ship Traffic Optimization for the Kiel Canal

    E-Print Network [OSTI]

    Elisabeth Lübbecke

    2014-12-01T23:59:59.000Z

    Dec 1, 2014 ... This leads us to construct a fast online heuristic. The STCP ... In view of computational experiments on real traffic data expert planners approved that our combinatorial algorithm is well-suited for this decision support. With the ...

  9. Simulations of highway traffic with various degrees of automation

    SciTech Connect (OSTI)

    Doss, E.; Hanebutte, U.; Vitela, J.; Brown-VanHoozer, A.; Ewing, T.; Tentner, A.

    1996-10-01T23:59:59.000Z

    A traffic simulator to study highway traffic under various degrees of automation is being developed at Argonne National Laboratory (ANL). The key components of this simulator include a global and a local Expert Drive Mode, a human factor study and a graphical user interface. Further, an Autonomous Intelligent Cruise Control (AICC) which is based on a neural network controller is described and results for a typical driving scenario are given.

  10. Simulation of vehicle traffic on an automatic highway system.

    SciTech Connect (OSTI)

    Hanebutte, U.; Doss, E.; Ewing, T.; Tentner, A.; Technology Development

    1998-01-01T23:59:59.000Z

    A traffic simulator has been developed at Argonne National Laboratory to study highway traffic under various degrees of automation. The key components of this simulator include a global and a local Expert Driver Model, a human factor study, and a graphical user interface. Furthermore, an Autonomous Intelligent Cruise Control, which is based on a neural network controller, is described and results for two typical driving scenarios are given.

  11. Structural and safety characteristics and warrants for highway traffic barriers 

    E-Print Network [OSTI]

    Kohutek, Terry Lee

    1975-01-01T23:59:59.000Z

    Ross Highway traffic barriers are highway appurtenances that provide vehicle occupants with a relative degree of protection from roadside hazards and from errant vehicles encroaching across a median. The six basic types of traffic barr1ers are roads... are decision criteria that 1dentify sites along highways that need traff1c barrier installations. Structural and safety character- istics of the barr1ers refer to the impact performance, the structural integrity, and the safety of the vehicle occupants upon...

  12. Structural and safety characteristics and warrants for highway traffic barriers

    E-Print Network [OSTI]

    Kohutek, Terry Lee

    1975-01-01T23:59:59.000Z

    Ross Highway traffic barriers are highway appurtenances that provide vehicle occupants with a relative degree of protection from roadside hazards and from errant vehicles encroaching across a median. The six basic types of traffic barr1ers are roads... are decision criteria that 1dentify sites along highways that need traff1c barrier installations. Structural and safety character- istics of the barr1ers refer to the impact performance, the structural integrity, and the safety of the vehicle occupants upon...

  13. Strategies for improving traffic operations at oversaturated signalized diamond interchanges

    E-Print Network [OSTI]

    Herrick, George Curtis

    1992-01-01T23:59:59.000Z

    to reduce both recurring and nonrecurring congestion. Incident detection and management systems can be implemented on freeways to decrease incident durations and reduce the resulting traffic congestion. Surveillance and control systems can be integrated... urban diamond interchanges, the traffic engineer needs to better understand these control strategies and seek new and innovative control strategies to more effectively address them. This research addressed two major objectives. The first objective...

  14. Design and analysis of an ATM network traffic security device

    E-Print Network [OSTI]

    Teodor, Dan Cristian

    1997-01-01T23:59:59.000Z

    and retransmit the network traffic from one ATM network switch output port. The Receivers queue the incoming data from the ATM network switch and present the data to the Analysis Modules in manageable pieces. The Analysis Modules capture the data from... at an exponential rate. With the continuation of this growth, the requirements of providing uniform security management will become more and more difficult to manage without occupying a significant portion of the network traffic capability available to the end...

  15. Generic vehicle speed models based on traffic simulation: Development and application

    SciTech Connect (OSTI)

    Margiotta, R.; Cohen, H.; Elkins, G.; Rathi, A.; Venigalla, M.

    1994-12-15T23:59:59.000Z

    This paper summarizes the findings of a research project to develop new methods of estimating speeds for inclusion in the Highway Performance Monitoring System (HPMS) Analytical Process. The paper focuses on the effects of traffic conditions excluding incidents (recurring congestion) on daily average ed and excess fuel consumption. A review of the literature revealed that many techniques have been used to predict speeds as a function of congestion but most fail to address the effects of queuing. However, the method of Dowling and Skabardonis avoids this limitation and was adapted to the research. The methodology used the FRESIM and NETSIM microscopic traffic simulation models to develop uncongested speed functions and as a calibration base for the congested flow functions. The chief contributions of the new speed models are the simplicity of application and their explicit accounting for the effects of queuing. Specific enhancements include: (1) the inclusion of a queue discharge rate for freeways; (2) use of newly defined uncongested flow speed functions; (3) use of generic temporal distributions that account for peak spreading; and (4) a final model form that allows incorporation of other factors that influence speed, such as grades and curves. The main limitation of the new speed models is the fact that they are based on simulation results and not on field observations. They also do not account for the effect of incidents on speed. While appropriate for estimating average national conditions, the use of fixed temporal distributions may not be suitable for analyzing specific facilities, depending on observed traffic patterns. Finally, it is recommended that these and all future speed models be validated against field data where incidents can be adequately identified in the data.

  16. T.T.T.Nguyen, G.Armitage, A Survey of Techniques for Internet Traffic Classification using Machine Learning A Survey of Techniques for Internet Traffic

    E-Print Network [OSTI]

    Armitage, Grenville

    of their various business goals. Traffic classification may be a core part of automated intrusion detection systemsT.T.T.Nguyen, G.Armitage, A Survey of Techniques for Internet Traffic Classification using Machine Learning A Survey of Techniques for Internet Traffic Classification using Machine Learning Thuy T.T. Nguyen

  17. A rigorous treatment of a follow-the-leader traffic model with traffic lights present

    SciTech Connect (OSTI)

    Argall, Brenna; Cheleshkin, Eugene; Greenberg, J.M.; Hinde, Colin; Lin, Pei-Jen

    2003-07-16T23:59:59.000Z

    Traffic flow on a unidirectional roadway in the presence of traffic lights is modeled. Individual car responses to green, yellow, and red lights are postulated and these result in rules governing the acceleration and deceleration of individual cars. The essence of the model is that only specific cars are directly affected by the lights. The other cars behave according to simple follow-the-leader rules which limit their speed by the spacing between it and the car directly ahead. The model has a number of desirable properties; namely cars do not run red lights, cars do not smash into one another, and cars exhibit no velocity reversals. In a situation with multiple lights operating in-phase we get, after an initial startup period, a constant number of cars through each light during any green-yellow period. Moreover, this flux is less by one or two cars per period than the flux obtained in discretized versions of the idealized Lighthill, Whitham, Richards model which allows for infinite accelerations.

  18. Pollution Prevention Awards

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for RenewableSpeedingBiomassPPPOPetroleum38Polaron Behavior in1Pollution Prevention

  19. GENERATION D'INDICATEURS DANS LE CADRE D'UNE POLITIQUE DE MAINTENANCE PREVENTIVE CONDITIONNELLE

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    GENERATION D'INDICATEURS DANS LE CADRE D'UNE POLITIQUE DE MAINTENANCE PREVENTIVE CONDITIONNELLE Indicators generation as part of a policy of conditional preventive maintenance Pascal VRIGNAT, Manuel AVILA DE MAINTENANCE PREVENTIVE CONDITIONNELLE, Tours : France (2012)" #12;- le système se dégrade

  20. Condition-Based Maintenance via Simulation and a Targeted Bayesian

    E-Print Network [OSTI]

    Ben-Gal, Irad E.

    malfunctioning. Accordingly, it is essential to undertake an effective preventive maintenance (PM) policyCondition-Based Maintenance via Simulation and a Targeted Bayesian Network Metamodel Aviv Gruber, Israel ABSTRACT Condition-based maintenance (CBM) is increasingly applied to operational systems

  1. Security Conditions

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2004-07-08T23:59:59.000Z

    This Notice ensures that DOE uniformly meets the requirements of the Homeland Security Advisory System outlined in Homeland Security Presidential Directive-3, Threat Conditions and Associated Protective Measures, dated 3-11-02, and provides responses specified in Presidential Decision Directive 39, U.S. Policy on Counterterrorism (U), dated 6-21-95. It cancels DOE N 473.8, Security Conditions, dated 8-7-02. Extended until 7-7-06 by DOE N 251.64, dated 7-7-05 Cancels DOE N 473.8

  2. Pollution Prevention Tracking and Reporting System | Department...

    Energy Savers [EERE]

    Pollution Prevention Tracking and Reporting System Pollution Prevention Tracking and Reporting System Welcome to the Department of Energy's Pollution Prevention Tracking and...

  3. Los Alamos wins 2008 Pollution Prevention awards

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    2008 Pollution Prevention awards Los Alamos wins 2008 Pollution Prevention awards Winner of two Best-in-Class Pollution Prevention awards and six Environmental Stewardship awards...

  4. Critical enhancements of a dynamic traffic assignment model for highly congested, complex urban network

    E-Print Network [OSTI]

    Wei, Zheng, S.M. Massachusetts Institute of Technology

    2010-01-01T23:59:59.000Z

    To accurately replicate the highly congested traffic situation of a complex urban network, significant challenges are posed to current simulation-based dynamic traffic assignment (DTA) models. This thesis discusses these ...

  5. advanced automation system air traffic control: Topics by E-print...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    technology, are to increase the safety and through-put of the existing highway by traffic automation. Advanced Vehicle Control... Huandra, Rusli 1998-01-01 56 Post: Air Traffic...

  6. Rethinking Internet Traffic Management: From Multiple Decompositions to a Practical Protocol

    E-Print Network [OSTI]

    Singh, Jaswinder Pal

    management spans congestion control (at end hosts), routing protocols (on routers), and traffic engineering (by network operators). Historically, this division of functionality evolved organically- tures of the algorithms, we construct TRUMP: a traffic man- agement protocol that is distributed

  7. Utilizing Correlations to Compress Time-Series in Traffic Monitoring Sensor Networks

    E-Print Network [OSTI]

    Martin, Ralph R.

    at £20bn. In urban areas, transport is the major source of carbon dioxide emissions, and traffic Cambridge testbed (Figure 1) and the spatio- temporal properties of a real traffic dataset. Section III

  8. A noise-tolerant traffic sign recognition method based on color images

    E-Print Network [OSTI]

    Ahmad, Akram

    1995-01-01T23:59:59.000Z

    Devising a pattern recognition methodology for traffic sign images captured in noisy outdoor environments poses a challenging problem. Such a method has to cope with occlusion noise as when part of the region of interest (in this case, the traffic...

  9. Methods and systems for detecting abnormal digital traffic

    DOE Patents [OSTI]

    Goranson, Craig A [Kennewick, WA; Burnette, John R [Kennewick, WA

    2011-03-22T23:59:59.000Z

    Aspects of the present invention encompass methods and systems for detecting abnormal digital traffic by assigning characterizations of network behaviors according to knowledge nodes and calculating a confidence value based on the characterizations from at least one knowledge node and on weighting factors associated with the knowledge nodes. The knowledge nodes include a characterization model based on prior network information. At least one of the knowledge nodes should not be based on fixed thresholds or signatures. The confidence value includes a quantification of the degree of confidence that the network behaviors constitute abnormal network traffic.

  10. Dynamic programming applied to maximizing traffic flow in parallel systems

    E-Print Network [OSTI]

    Anderson, Gerald Lee

    1967-01-01T23:59:59.000Z

    Solution of the problem The Triple-Route Model 33 CHAPTER I INTRODUCTION The control of traffic flow and congestion in freeway systems is a matter of increasing importance at a time when it. has become evident that it is impossible to construct... enough urban highway- to satisfy all of the traffic demand. It is necessary to seek ways to make more efficient u. e of existing freeways. Nattleworth (1, 2) and others (3, 4, 5, 6) have discussed various aspects of the control of freeway systems...

  11. An operational analysis of flashing traffic signal operation

    E-Print Network [OSTI]

    Benz, Robert Joseph

    1993-01-01T23:59:59.000Z

    AN OPERATIONAL ANALYSIS OF FLASHING TRAFFIC SIGNAL OPERATION A Thesis by ROBERT JOSEPH BENZ Submitted to the Office of Graduate Studies of Texas AEcM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... street volumes are below 250 vph per approach and for main street volume of 500 vph per approach when the main/minor street volume ratio is above two. The volume range exceeds the Warrant 1 the minimum volume warrant for traffic signal installation...

  12. Boise Air Traffic Control Tower: High Performance and sustainable Building Guiding Principles Technical Assistance

    SciTech Connect (OSTI)

    Fowler, Kimberly M.; Goel, Supriya; Henderson, Jordan W.

    2013-09-01T23:59:59.000Z

    Overview of energy efficiency opportunities for new FAA tower construction using the Boise Air Traffic Control Tower as an example.

  13. Developing an indicator for the chronic health impact of traffic-related pollutant emissions

    SciTech Connect (OSTI)

    Lepicier, Veronique [IFSTTAR, Laboratoire Transport et Environnement, 25, av. F. Mitterrand, 69675 Bron Cedex (France); Chiron, Mireille [IFSTTAR, UMRESTTE, 25, av. F. Mitterrand, 69675 Bron Cedex (France); Joumard, Robert, E-mail: robert.joumard@laposte.net [IFSTTAR, Laboratoire Transport et Environnement, 25, av. F. Mitterrand, 69675 Bron Cedex (France)

    2013-01-15T23:59:59.000Z

    The goal of this study is to develop an emission based indicator for the health impact of the air pollution caused by traffic. This indicator must make it possible to compare different situations, for example different Urban Travel Plans, or technical innovations. Our work is based on a literature survey of methods for evaluating health impacts and, more particularly, those which relate to the atmospheric pollution caused by transport. We then define a health impact indicator based on the traffic emissions, named IISCEP for Chronic health impact indicator of pollutant emission. Here health is understood in a restricted meaning, excluding well-being. Only primary pollutants can be considered, as the inputs are emission data and an indicator must be simple. The indicator is calculated as the sum of each pollutant emission multiplied by a dispersion and exposition factor and a substance specific toxicity factor taking account of the severity. Last, two examples are shown using the IISCEP: comparison between petrol and diesel vehicles, and Nantes urban district in 2008 vs 2002. Even if it could still be improved, IISCEP is a straightforward indicator which can be used to gauge the chronic effects of inhaling primary pollutants. It can only be used in comparisons, between different scenarios or different technologies. The quality of the emissions data and the choice of the pollutants that are considered are the two essential factors that determine its validity and reliability. - Highlights: Black-Right-Pointing-Pointer The goal of the study is to develop an emission based indicator for the health impact of the air pollution caused by traffic. Black-Right-Pointing-Pointer It is based on a literature survey of methods for evaluating health impacts related to the atmospheric pollution. Black-Right-Pointing-Pointer We define a composite indicator based on the traffic emissions and on local data as dispersion conditions and population. Black-Right-Pointing-Pointer The indicator is a combination of pollutant emission, dispersion, exposition factor, and substance specific toxicity factor. Black-Right-Pointing-Pointer Applications are global (e.g. comparison of vehicle technologies) or local (e.g. comparison of populations or areas).

  14. Gasoline price effects on traffic safety in urban and rural areas: Evidence from Minnesota, 19982007

    E-Print Network [OSTI]

    Levinson, David M.

    Gasoline price effects on traffic safety in urban and rural areas: Evidence from Minnesota, 1998 February 2012 Received in revised form 3 May 2013 Accepted 24 May 2013 Keywords: Gasoline prices Traffic examines the role of gasoline prices in the occurrence of traffic crashes. However, no studies have

  15. Integration of an Aggregate Flow Model with a Traffic Flow Simulator

    E-Print Network [OSTI]

    Integration of an Aggregate Flow Model with a Traffic Flow Simulator Robert Hoffman , Dengfeng Sun restrictions to aircraft movement are applied by air traffic controllers and traffic managers in response to demand overages or capacity shortfalls in sectors of airspace. To estimate and assess the efficiency

  16. Coupling traffic models on networks and urban dispersion models for simulating sustainable

    E-Print Network [OSTI]

    Ceragioli, Francesca

    models for modeling and testing different traffic scenarios, in order to define the impact on air quality it with the urban dispersion model Sirane. Keywords: urban air quality, macroscopic traffic models, road networks, pollutant dispersion models, traffic emissions control. AMS subject classification: 35L65, 35L67, 60K30, 90B

  17. Bounding Peer-to-Peer Upload Traffic in Client Networks Chun-Ying Huang

    E-Print Network [OSTI]

    Chen, Sheng-Wei

    interest. However, as the amount of peer-to- peer traffic increases, a network administrator would like for such network traffic. Second, as any one can develop their own protocols, even if network administratorsBounding Peer-to-Peer Upload Traffic in Client Networks Chun-Ying Huang National Taiwan University

  18. Realistic network traffic profile generation: theory and practice Antoine Varet1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , "realistic behavior" means to generate traffic similar to the traffic a network administrator can captureRealistic network traffic profile generation: theory and practice Antoine Varet1 & Nicolas Larrieu1-mail: nicolas.larrieu@enac.fr Abstract Network engineers and designers need additional tools to generate network

  19. weber, evans, moser, and newell Air Traffic Management Decision Support During Convective Weather

    E-Print Network [OSTI]

    Reuter, Martin

    · weber, evans, moser, and newell Air Traffic Management Decision Support During Convective WeatherTraffic Management Decision Support During Convective Weather Mark E. Weber, James E. Evans, William R. Moser algorithm. #12;· weber, evans, moser, and newell Air Traffic Management Decision Support During Convective

  20. Review of Urban Bicyclists' Intake and Uptake of Traffic-Related Air Pollution

    E-Print Network [OSTI]

    Bertini, Robert L.

    Review of Urban Bicyclists' Intake and Uptake of Traffic-Related Air Pollution ALEXANDER Y. BIGAZZI- clists may experience increased inhalation of traffic-related air pollutants. Bicyclists have two to five regarding urban bicyclists' intake and uptake of traffic-related air pollution and to identify key knowledge

  1. Review of Urban Bicyclists' Intake and Uptake of Traffic-Related Air Pollution

    E-Print Network [OSTI]

    Bertini, Robert L.

    1 Review of Urban Bicyclists' Intake and Uptake of Traffic-Related Air Pollution Alexander Y of Traffic-Related Air Pollution Abstract Bicycling as a mode of transportation is enjoying a boost in many while bicycling, bicyclists may experience increased inhalation of traffic-related air pollutants

  2. Automatic Model Classification of Measured Internet Traffic Yi Zeng and Thomas M. Chen

    E-Print Network [OSTI]

    Chen, Thomas M.

    issues for future work. II. MODEL-LIBRARY TRAFFIC CLASSIFICATION Many traffic models have been developed Model 2 module ... Model library Fig. 1. General model classification system In the general case with NAutomatic Model Classification of Measured Internet Traffic Yi Zeng and Thomas M. Chen Department

  3. Development of an actuated traffic control process utilizing real-time estimated volume feedbback

    E-Print Network [OSTI]

    Pacelli, Michael Joseph

    1999-01-01T23:59:59.000Z

    state of the system in the same units. The goal of this research was to develop an actuated traffic control process that could use estimated volumes in order to optimally operate the traffic signal in real- time in response to actual traffic demands...

  4. Air Traffic Complexity Resolution in Multi-Sector Planning Using CP

    E-Print Network [OSTI]

    Flener, Pierre

    Air Traffic Complexity Resolution in Multi-Sector Planning Using CP Pierre Flener1 Justin Pearson1 Programming for ATC & ATM, Brétigny (France), 2 December 2008 #12;Objective Air Traffic Complexity Complexity Resolution A CP Model Experiments Conclusion Outline 1 Objective 2 Air Traffic Complexity 3 Complexity

  5. Air traffic complexity and the interacting particle system method: An integrated approach for collision risk estimation

    E-Print Network [OSTI]

    Del Moral , Pierre

    Air traffic complexity and the interacting particle system method: An integrated approach explore the possibility of using air traffic complexity metrics to accelerate the Interacting Particle to assess the performance and impact of, e.g., possible modifications of the current air traffic management

  6. The inhomogeneous kinematic wave traffic flow model as a resonant nonlinear system

    E-Print Network [OSTI]

    Mease, Kenneth D.

    The inhomogeneous kinematic wave traffic flow model as a resonant nonlinear system December, 2000 W 95616 Abstract The kinematic wave traffic flow model for an inhomogeneous road is studied as a resonant conform to expectations. Introduction The kinematic wave traffic flow model of LWR was introduced

  7. Self-learning IP Traffic Classification based on Statistical Flow Characteristics

    E-Print Network [OSTI]

    Zander, Sebastian

    and intrusion detection. The most common identification technique based on the inspection of `known port numbers or encrypted traffic. The authors of [1] propose signature-based methods to classify P2P traffic. AlthoughSelf-learning IP Traffic Classification based on Statistical Flow Characteristics Sebastian Zander1

  8. Adaptive Traffic-Based Techniques For Live Multimedia Streaming

    E-Print Network [OSTI]

    Adaptive Traffic-Based Techniques For Live Multimedia Streaming Gabriel-Miro Muntean and LiamMiro.Muntean@ucd.ie, Liam.Murphy@ucd.ie Abstract The growing number of multimedia stream transmissions done through the time-sensitive applications and especially the continuity of multimedia streaming. The paper presents

  9. Traffic Light Mapping and Detection Nathaniel Fairfield Chris Urmson

    E-Print Network [OSTI]

    Tomkins, Andrew

    by lines painted on the road, traffic lights indicate precedence at intersections, brake lights show when, are becoming common- place as part of commercial driver-assistance systems. With power steering, power brakes obstructions or false positives such as those induced by the brake lights of other vehicles. Happily, both

  10. Traffic Merging for Energy-Efficient Datacenter Networks

    E-Print Network [OSTI]

    Singh, Suresh

    Traffic Merging for Energy-Efficient Datacenter Networks Alessandro Carrega University of Genoa shown that datacenter net- works typically see loads of between 5% ­ 25% but the energy draw these networks more energy proportional ­ that is, the energy draw scales with the network load. We propose

  11. A Comparison of Unsupervised Learning Techniques for Encrypted Traffic Identification

    E-Print Network [OSTI]

    Zincir-Heywood, Nur

    the performance of five unsupervised clustering algorithms: Basic K-Means, Semi-supervised K-Means, DBSCAN, EM Algorithms, K-Means, DBSCAN, EM, Encrypted Traffic Identification. 1. Introduction An important part perspective we benchmark four unsupervised clustering techniques: basic K-Means, semi-supervised K- Means

  12. Traffic-Aware Video Streaming in Broadband Wireless Networks

    E-Print Network [OSTI]

    Ansari, Nirwan

    Traffic-Aware Video Streaming in Broadband Wireless Networks Ehsan Haghani and Nirwan Ansari Shyam in the Internet. Streaming real-time video in wireless networks is a challenging problem due to the stringent video quality at the end user in wireless networks. Our solution incorporates the characteristics

  13. Decentralized Traffic Management: A Synchronization-Based Intersection Control

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    the autonomous vehicle-agents to cross without stopping, i.e., in order to avoid congestions (delays) and energy by the vehicles while crossing the intersections, and the energy consumption due to the speed variations- portation systems. Autonomous vehicles are today considered as a promising approach to deal with traffic

  14. Computation Availability of Crossbar Systems in a Nonuniform Traffic Environment

    E-Print Network [OSTI]

    Atiquzzaman, Mohammed

    Computation Availability of Crossbar Systems in a Non­uniform Traffic Environment M. Atiquzzaman M Multiprocessor systems can provide higher performance, reliability, and availability than single processor performance and reliability are needed. Most previous studies have considered the performance and reliability/availability

  15. Evaluation of Non-intrusive Traffic Detection Technologies Phase III

    E-Print Network [OSTI]

    Minnesota, University of

    TPF-5(171) Evaluation of Non-intrusive Traffic Detection Technologies Ð Phase III #12 not intrude into pavement for installation. ·! Sensors above, below or to the side of the roadway qualify;Miovision #12;Miovision #12;Laser-based sensors #12;PEEK AxleLight #12;TIRTL #12;TIRTL #12;#12;#12;#12;

  16. AT&T Labs -Research Traffic Matrix Estimation

    E-Print Network [OSTI]

    Roughan, Matthew

    engineering (choosing OSPF weights) Reliability analysis Detecting anomalies Understanding traffic over limited availability ­ like a high zoom snap shot · special equipment needed (O&M expensive even if box to get routing matrices Gives the Routing Matrix A #12;AT&T Labs - Research Example App: reliability

  17. Measuring Bicyclists' Uptake of Traffic-Related Air Pollution

    E-Print Network [OSTI]

    Bertini, Robert L.

    Measuring Bicyclists' Uptake of Traffic-Related Air Pollution Alex Bigazzi PSU Transportation Seminar Feb. 28, 2014 Miguel Figliozzi Jim Pankow Wentai Luo Lorne Isabelle Urban Bicyclists' Pollution Uptake 1 #12;Bicycle & Health Promotion Public Health Exercise CrashesPollution Emissions Exposure/ Dose

  18. A categorical model for traffic incident likelihood estimation

    E-Print Network [OSTI]

    Kuchangi, Shamanth

    2007-04-25T23:59:59.000Z

    In this thesis an incident prediction model is formulated and calibrated. The primary idea of the model developed is to correlate the expected number of crashes on any section of a freeway to a set of traffic stream characteristics, so that a...

  19. Power Efficient Traffic Grooming in Optical WDM Networks

    E-Print Network [OSTI]

    @ncsu.edu Abstract--Power-awareness in networking attracts more at- tention as the trends in the energy consumption the objectives of minimizing the number of lightpaths and electronically routed traffic. Energy consumption has Department of Computer Science North Carolina State University Raleigh, NC 27695-8206 USA Email: rouskas

  20. Enforcing Liveness in Autonomous Traffic Management Tsz-Chiu Au

    E-Print Network [OSTI]

    Au, Tsz-Chiu

    - section Management (AIM). They showed that by leveraging the capacities of autonomous vehicles a First Come, First Served (FCFS) policy to direct autonomous vehicles through an intersection traditional traffic signals and stop signs, resulting in fuel savings since vehicles are less likely to stop

  1. Estimating Emissions in Latin America: An Alternative to Traffic Models

    E-Print Network [OSTI]

    Richner, Heinz

    Estimating Emissions in Latin America: An Alternative to Traffic Models Margarita Ossés de Eicker; Hans Hurni, Centre for Development and Environment (CDE), University of Bern, Switzerland Emissions allow precise estimations of these emissions but are too expensive for a broad application. A simplifed

  2. 1997 Hui Zhang 1 LIRA: Service Differentiation for Traffic

    E-Print Network [OSTI]

    Zhang, Hui

    1 1997 Hui Zhang 1 Carnegie Mellon LIRA: Service Differentiation for Traffic Aggregates With Large Spatial Granularities Ion Stoica Hui Zhang School of Computer Science Carnegie Mellon University 1997 Hui Simulation experiments l Conclusions and future work #12; 2 1997 Hui Zhang 3 Carnegie Mellon Motivation l

  3. 1997 Hui Zhang 1 LIRA: Service Differentiation for Traffic

    E-Print Network [OSTI]

    Zhang, Hui

    1 1997 Hui Zhang 1 Carnegie Mellon LIRA: Service Differentiation for Traffic Aggregates With Large Spatial Granularities Ion Stoica Hui Zhang School of Computer Science Carnegie Mellon University 1997 Hui Simulation experiments q Conclusions and future work #12;2 1997 Hui Zhang 3 Carnegie Mellon Motivation q

  4. PROOF COPY 004805HFS Molecular motors: a traffic cop within?

    E-Print Network [OSTI]

    Gross, Steven

    PROOF COPY 004805HFS PROOF COPY 004805HFS Molecular motors: a traffic cop within? M. A. Welte1 bidirectional, employing multiple plus- and minus-end directed motors. How cells regulate such transport in time approach to predict how much of transport can be understood just from our knowledge of the motors involved

  5. Impact of retailer's promotional activities on customer traffic

    E-Print Network [OSTI]

    Tasic, Ivan

    2007-09-17T23:59:59.000Z

    effect on store traffic that is comparable with the customer count effect of an average holiday. Some 55 percent of the positive long-run promotional activity effect is felt immediately, and the remaining 45 percent is spread over a five week long period...

  6. A Network-Processor-Based Traffic Splitter for Intrusion Detection

    E-Print Network [OSTI]

    Markatos, Evangelos P.

    1 A Network-Processor-Based Traffic Splitter for Intrusion Detection Ioannis Charitakis, Kostas processor and evaluated its performance using a combination of experimental evaluation and simulation. Our network-level security and protection, Network Processors, Intrusion Detection I. Charitakis and E. P

  7. Preventing Laboratory FiresPreventing Laboratory Fires AgendaAgenda

    E-Print Network [OSTI]

    Farritor, Shane

    June 2006fire June 2006 #12;Hamilton HallHamilton Hall September 1992September 1992 Explosion Rm. 619Behlen Explosion 2002Explosion 2002 Explosion in ventilationExplosion in ventilation hood, no fire orhood, no firePreventing Laboratory FiresPreventing Laboratory Fires #12;AgendaAgenda Flash over VideoFlash over

  8. TRAFFIC AND PARKING REGULATIONS 2013/2014 The following document comprises the University of Stirling's Traffic & Parking

    E-Print Network [OSTI]

    Little, Tony

    of Stirling's Traffic & Parking Regulations and sets out the rules for all individuals bringing a vehicle onto the University's Stirling campus. These rules are referred to as the Regulations in this document and may & display ticket unless they opt to park in a full parking space. 1.10 The University of Stirling is a data

  9. TRAFFIC AND PARKING REGULATIONS 2014/2015 The following document comprises the University of Stirling's Traffic & Parking

    E-Print Network [OSTI]

    Little, Tony

    of Stirling's Traffic & Parking Regulations and sets out the rules for all individuals bringing a vehicle onto the University's Stirling campus. These rules are referred to as the Regulations in this document and may & display ticket unless they opt to park in a full parking space. #12;2 1.9 The University of Stirling

  10. A peaks-over-threshold analysis of extreme traffic load effects on bridges Franziska Schmidt, Xiao Yi Zhou, Franois Toutlemonde

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    extreme traffic load or traffic load effect. These are: i. a half-normal curve fitted to the end1 A peaks-over-threshold analysis of extreme traffic load effects on bridges Franziska Schmidt focuses on modeling and estimating tail parameters of bridge traffic load effects by generalized Pareto

  11. Droplet traffic in microfluidic networks: A simple model for understanding and designing

    E-Print Network [OSTI]

    M. Schindler; A. Ajdari

    2007-12-20T23:59:59.000Z

    We propose a simple model to analyze the traffic of droplets in microfluidic ``dual networks''. Such functional networks which consist of two types of channels, namely those accessible or forbidden to droplets, often display a complex behavior characteristic of dynamical systems. By focusing on three recently proposed configurations, we offer an explanation for their remarkable behavior. Additionally, the model allows us to predict the behavior in different parameter regimes. A verification will clarify fundamental issues, such as the network symmetry, the role of the driving conditions, and of the occurrence of reversible behavior. The model lends itself to a fast numerical implementation, thus can help designing devices, identifying parameter windows where the behavior is sufficiently robust for a devices to be practically useful, and exploring new functionalities.

  12. Flow of autonomous traffic on a single multi-lane street

    E-Print Network [OSTI]

    Polito, Federico

    2007-01-01T23:59:59.000Z

    We investigate the behaviour of an original traffic model. The model considers a single multi-lane street, populated by autonomous vehicles directed from either end to the other. Lanes have no intrinsic directionality, and the vehicles are inserted at random at either end and any lane. Collision avoidance is fully automatic and, to enhance the transport capacity of the street, vehicles form_trains_ in which they may travel at high speed quite close to the vehicle in front. We report on the transit times for vehicles under a wide variety of conditions: vehicle insertion probability & imbalance and their maximum speed distribution. We also outline an interesting feature of the model, that the complex interactions of many vehicles are considerably more powerful than a simple "keep left" directive which each vehicle should obey.

  13. Atypical Behavior Identification in Large Scale Network Traffic

    SciTech Connect (OSTI)

    Best, Daniel M.; Hafen, Ryan P.; Olsen, Bryan K.; Pike, William A.

    2011-10-23T23:59:59.000Z

    Cyber analysts are faced with the daunting challenge of identifying exploits and threats within potentially billions of daily records of network traffic. Enterprise-wide cyber traffic involves hundreds of millions of distinct IP addresses and results in data sets ranging from terabytes to petabytes of raw data. Creating behavioral models and identifying trends based on those models requires data intensive architectures and techniques that can scale as data volume increases. Analysts need scalable visualization methods that foster interactive exploration of data and enable identification of behavioral anomalies. Developers must carefully consider application design, storage, processing, and display to provide usability and interactivity with large-scale data. We present an application that highlights atypical behavior in enterprise network flow records. This is accomplished by utilizing data intensive architectures to store the data, aggregation techniques to optimize data access, statistical techniques to characterize behavior, and a visual analytic environment to render the behavioral trends, highlight atypical activity, and allow for exploration.

  14. Robust Background Subtraction with Foreground Validation for Urban Traffic Video

    SciTech Connect (OSTI)

    Cheung, S S; Kamath, C

    2004-01-15T23:59:59.000Z

    Identifying moving objects in a video sequence is a fundamental and critical task in many computer-vision applications. Background subtraction techniques are commonly used to separate foreground moving objects from the background. Most background subtraction techniques assume a single rate of adaptation, which is inadequate for complex scenes such as a traffic intersection where objects are moving at different and varying speeds. In this paper, we propose a foreground validation algorithm that first builds a foreground mask using a slow-adapting Kalman filter, and then validates individual foreground pixels by a simple moving object model, built using both the foreground and background statistics as well as the frame difference. Ground-truth experiments with urban traffic sequences show that our proposed algorithm significantly improves upon results using only Kalman filter or frame-differencing, and outperforms other techniques based on mixture of Gaussians, median filter, and approximated media filter.

  15. Hamiltonian traffic dynamics in microfluidic-loop networks

    E-Print Network [OSTI]

    Raphaël Jeanneret; Julien Piera-Vest; Denis Bartolo

    2011-09-28T23:59:59.000Z

    Recent microfluidic experiments revealed that large particles advected in a fluidic loop display long-range hydrodynamic interactions. However, the consequences of such couplings on the traffic dynamics in more complex networks remain poorly understood. In this letter, we focus on the transport of a finite number of particles in one-dimensional loop networks. By combining numerical, theoretical, and experimental efforts, we evidence that this collective process offers a unique example of Hamiltonian dynamics for hydrodynamically interacting particles. In addition, we show that the asymptotic trajectories are necessarily reciprocal despite the microscopic traffic rules explicitly break the time reversal symmetry. We exploit these two remarkable properties to account for the salient features of the effective three-particle interaction induced by the exploration of fluidic loops.

  16. On freeway traffic control by a lane closure

    E-Print Network [OSTI]

    Henderson, Donald Manson

    1971-01-01T23:59:59.000Z

    ON PREENAY TRAPPIC CONTROL BY. A LANE CLOSURE A Thesis by DONALD MANSON HENDERSON Submitted to the. Graduate College of Texas A&M University in partial fulfillment of the requirement. for the degree of MASTER OP SCIENCE Ma)or Suh]ect: Civil... Engineering August 1971 ON FREEWAY TRAFFIC CONTROL BY A LANE CLOSURE A Thesis by DONALD MANSON HENDERSON Approved as to style and content by: (Chairman of ommittee) (Head of Departmen (Member) (Member) (Member) ember) (Member) August 1971 ABSTRACT...

  17. Traffic Dynamics Prospectives: From Fundamental Diagram to Energy Balance

    E-Print Network [OSTI]

    Bertini, Robert L.

    Traffic Dynamics Prospectives: From Fundamental Diagram to Energy Balance R. Mahnke1 , Ch. Liebe, R) = vmax D m 2 - arctan xi D (13) Energy balance: d dt (Ekin(vi) + Epot(xi)) + i(xi, vi, vi+1) = 0 (14) with i as energy flux. 08.07.2008 Woods Hole ­ p.8/11 #12;Energy Balance with Energy Flux Energy balance

  18. Taxiway Aircraft Traffic Scheduling: A Model and Solution Algorithms

    E-Print Network [OSTI]

    Tian, Chunyu

    2012-10-19T23:59:59.000Z

    -known of these policies are the Ground Delay Progr am and Collaborative Decision Making (CDM). 15 The Ground Delay Program is currently implemented by the Federal Aviation Administration (FAA) to control air traffic when the acceptance rate of the destination... directions, they are referred as intersecting runways. In runway operations, the most important factors that need to be considered include wake vortex separations. Federal Aviation Administration categorizes the aircraft into three classes according...

  19. Preventing and Reporting Abuse in Programs with Minor Participants

    E-Print Network [OSTI]

    Howat, Ian M.

    , injury, disability or condition that reasonably indicates abuse or neglect. Child care Any licensed childPreventing and Reporting Abuse in Programs with Minor Participants 1.50 Office of Human Resources of their duties in these programs: overnight camps, child care and 4-H. POLICY Issued: 01/01/2013 Edited: 04

  20. Toxic Pollution Prevention Act (Illinois)

    Broader source: Energy.gov [DOE]

    It is the purpose of this Act to reduce the disposal and release of toxic substances which may have adverse and serious health and environmental effects, to promote toxic pollution prevention as...

  1. Health Behavior Health Promotion -Prevention

    E-Print Network [OSTI]

    Meagher, Mary

    chronic disease complications Improve quality of life Reduce health care costs #12;ImpactHealth Behavior Health Promotion - Prevention Modification of Health Attitudes and Health Behavior #12;Health Promotion: An Overview Basic philosophy Good health = individual and collective goal

  2. Adolescent drug abuse - Awareness & prevention

    E-Print Network [OSTI]

    Chakravarthy, Bharath; Shah, Shyam; Lotfipour, Shahram

    2013-01-01T23:59:59.000Z

    alcohol, tobacco and other drug use. Int Rev Psychiatry.therapy for adolescent drug abuse. J Clin Child Psychol.outcomes in an indicated drug prevention program for high-

  3. Implantation, Activation, Characterization and Prevention/Mitigation...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Activation, Characterization and PreventionMitigation of Internal Short Circuits in Lithium-Ion Cells Implantation, Activation, Characterization and PreventionMitigation of...

  4. Guidance on Incorporating EPA's Pollution Prevention Strategy...

    Broader source: Energy.gov (indexed) [DOE]

    The guidance discusses the Environmental Protection Agency's definition of pollution prevention; how to incorporate pollution prevention into the EPA environmental review process...

  5. Development of a Web-based Emissions Reduction Calculator for Street Light and Traffic Light Retrofits

    E-Print Network [OSTI]

    Liu, Z.; Gilman, D.; Haberl, J. S.; Culp, C.

    2005-01-01T23:59:59.000Z

    , street lights and traffic lights represent one of the largest categories of electricity used by a city. By retrofitting the street lights with energy efficient lamps such as high pressure sodium and metal halide and traffic lights with light-emitting... diode (LED) traffic signals, a city 1 In the 2003 and 2005 Texas State legislative sessions, the emissions reductions legislation in Senate Bill 5 was modified by House bill 3235, and House bill 1365...

  6. An evaluation of the operating effectiveness of a computer-controlled traffic network

    E-Print Network [OSTI]

    De Steiguer, Allen Louis

    1969-01-01T23:59:59.000Z

    on relationships whith neazby detected links and known patterns of traffic movement control. iv Acknowled ements I wish to express my gratitide to those people wi. thout whose assistance this thesis would not have seen the light of day. My deepest... system of traffic control and to compare it to several conventional types of traffic signal control; * To evaluate various detector configurations for computer- controlled networks to determine the effects of different levels of detection intensity...

  7. The Dynamics of Internet Traffic: Self-Similarity, Self-Organization, and Complex Phenomena

    E-Print Network [OSTI]

    Reginald D. Smith

    2010-09-05T23:59:59.000Z

    The Internet is the most complex system ever created in human history. Therefore, its dynamics and traffic unsurprisingly take on a rich variety of complex dynamics, self-organization, and other phenomena that have been researched for years. This paper is a review of the complex dynamics of Internet traffic. Departing from normal treatises, we will take a view from both the network engineering and physics perspectives showing the strengths and weaknesses as well as insights of both. In addition, many less covered phenomena such as traffic oscillations, large-scale effects of worm traffic, and comparisons of the Internet and biological models will be covered.

  8. E-Print Network 3.0 - air traffic management Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sridhar and Kapil... of the problems in Traffic Flow ... Source: NASA - Center-TRACTION Automation System (CTAS) Collection: Energy Storage, Conversion and Utilization 2 Table of...

  9. Preventing Disability Among Working Participants in Kansas’ High-risk Insurance Pool: Implications for Health Reform

    E-Print Network [OSTI]

    Hall, Jean P.; Moore, Janice M.; Welch, Greg W.

    2011-01-01T23:59:59.000Z

    Health conditions that prevent individuals from working full time can restrict their access to health insurance. For people living in the 35 states that offer high-risk pools, coverage is available but premiums are 125–200% ...

  10. An analysis of peak traffic demand at signalized urban intersections

    E-Print Network [OSTI]

    Drew, Donald R

    1961-01-01T23:59:59.000Z

    (3 LANES) 350 705 7:15 725 7:35 7:45 7:55 805 TIME INTERVAL TYPICAL PEAK HOUR 5 MIN. TRAFFIC FLOWS 3 ? LANE FREEWAY 100 90 80 UI Z 3 70 0 PEAK RATES OF FLOW FORT WORTH UNIFORM ARRIVALS 0 ~ o170 EQUIVALENT RATE OF FLOW 60 50 O... {Figure 3), it is seen thai from 7:10 A. M. to 7:45 A. Lvf . the average hourly rate of flow is exceeded. If the mid-points of the five-minute ordinates are connected, a polygon is formed which:ntersects the PHV at the extremities of the peak period...

  11. A comparison of thick film and thin film traffic stripes

    E-Print Network [OSTI]

    Keese, Charles J

    1952-01-01T23:59:59.000Z

    Striys. . . Pigmented Bitusmn Stripes . Asphalt %uilt-Upa Striye vith Pigmented Portland Cement Mortar Cover Course 38 . ~ 41 Thin Film Stripes Used for Comparison Results of Comparing Thick Film Stripes and Thin Film Paint Stripes . ~ ~ ~ ~ ~ 43... was aspbaltio oonorets. The pavement in Test Areas 2y 3p and 4 vas portland cesmnh ooncrete, Two test areas (3 and 4) vere located in such manner as to provide uninterrupted flow of traffic over tbs entire length of the test area. The other two test areas (1...

  12. EECBG Success Story: Getting Traffic Lights Talking to Improve Topeka's

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy China U.S.ContaminationJulySavannah River Site forCommunity'Department ofDepartmentTraffic

  13. LED Traffic Lights Get Buy American Stamp | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaeferApril 1, 1999 InspectionVolunteersKarenThisDepartment ofLED traffic lights

  14. Waste IncIneratIon and Waste PreventIon

    E-Print Network [OSTI]

    and heat. In 2005/2006, German waste incineration plants provided some 6 terawatt hours (TWh-/Abfallgesetz) continues to hold: Waste prevention has priority over recovery and disposal. Nevertheless, the use of waste for en- ergy recovery is an indispensable element of sus- tainable waste management. Waste incineration

  15. Pollution prevention through reactor design

    SciTech Connect (OSTI)

    Hopper, J.R. [Lamar Univ., Beaumont, TX (United States)

    1995-09-01T23:59:59.000Z

    Generation of waste in the chemical processing industries has its beginning in the heart of the process--the reaction system. Pollution prevention will have the greatest impact in minimizing the generation of waste through the design and operation of chemical reactors by reducing generation at the source--source reduction. Pollution prevention by modification of reaction parameters is defined as changing the selectivity of the reaction so that undesirable reactions which produce waste products are minimized while at the same time producing the desirable products.

  16. Preventive maintenance vital to cogen profitability

    SciTech Connect (OSTI)

    Cox, D.R. (Mission Operation and Maintenance Inc. (US))

    1992-04-01T23:59:59.000Z

    A power plant's efficiency is the key to its success in generating a profit. While the fuel used and the mechanical efficiency of the plant itself are key design factor, once the plat is on-stream the main factor becomes the plant's time on line. Any downtime detracts from its profitability, especially during peak periods. In the case of a cogeneration facility downtime becomes even more critical, since it has more than one customer to satisfy; and electrical customer and a thermal energy customer. This paper reports that an unscheduled outage has the potential to be very expensive: Costs and revenue losses escalate rapidly from thousands of dollars into millions of dollars, depending on length of downtime and time of year. During off-peak winter months, losses at the Harbor cogeneration plant can be dramatic; peak summer losses can be catastrophic. Not only are generation revenues loss, but bonus revenues, qualifying facility (QF) status, and contractual obligations are at risk. With these prospects looming over the option, management must practice not only preventive maintenance, but predictive and condition based maintenance as well. HCC's key to preventing unscheduled outages is a computerized maintenance management system (CMMS).

  17. Heat pump with freeze-up prevention

    DOE Patents [OSTI]

    Ecker, Amir L. (Dallas, TX)

    1981-01-01T23:59:59.000Z

    What is disclosed is a heat pump apparatus for conditioning a fluid characterized by a fluid handler and path for circulating the fluid in heat exchange relationship with a refrigerant fluid; at least two refrigerant heat exchangers, one for effecting heat exchange with the fluid and a second for effecting heat exchange between refrigerant and a heat exchange fluid and the ambient air; a compressor for efficiently compressing the refrigerant; at least one throttling valve for throttling liquid refrigerant; a refrigerant circuit; refrigerant; a source of heat exchange fluid; heat exchange fluid circulating device and heat exchange fluid circuit for circulating the heat exchange fluid in heat exchange relationship with the refrigerant; and valves or switches for selecting the heat exchangers and direction of flow of the refrigerant therethrough for selecting a particular mode of operation. The heat exchange fluid prevents freeze up of the second heat exchanger by keeping the temperature above the dew point; and, optionally, provides heat for efficient operation.

  18. Traffic-related air pollution exposures and changes in heart rate variability in Mexico City: A panel study

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    variability with traffic and air pollution in patients withAtherosclerosis and Air Pollution (MESA Air). Am J Epidemiolto traffic-related air pollution and the risk of coronary

  19. Pilot Perception and Use of ADS-B Traffic and Weather Services (TIS-B & FIS-B)

    E-Print Network [OSTI]

    Silva, Sathya

    2014-10-08T23:59:59.000Z

    Automatic Dependent Surveillance – Broadcast (ADS-B) is a central component of the NextGen air traffic control modernization program. It is intended to improve traffic surveillance capabilities by sharing accurate aircraft ...

  20. The effectiveness of jobs-housing balance as a strategy for reducing traffic congestion: a study of metropolitan Bangkok 

    E-Print Network [OSTI]

    Lobyaem, Sonchai

    2006-10-30T23:59:59.000Z

    Bangkok is widely known for its severe traffic congestion. The Thai government advocates the concept of jobs and housing balance (JHB) as a strategy for reducing traffic congestion in Metropolitan Bangkok. The basic idea ...

  1. The effectiveness of jobs-housing balance as a strategy for reducing traffic congestion: a study of metropolitan Bangkok

    E-Print Network [OSTI]

    Lobyaem, Sonchai

    2006-10-30T23:59:59.000Z

    Bangkok is widely known for its severe traffic congestion. The Thai government advocates the concept of jobs and housing balance (JHB) as a strategy for reducing traffic congestion in Metropolitan Bangkok. The basic idea is to decentralize the jobs...

  2. Marginal costs of freeway traffic congestion with on-road pollution exposure externality

    E-Print Network [OSTI]

    Bertini, Robert L.

    Marginal costs of freeway traffic congestion with on-road pollution exposure externality Alexander August 2012 Received in revised form 6 March 2013 Accepted 23 September 2013 Keywords: External costs Traffic congestion On-road In-vehicle Pollution exposure Vehicle emissions a b s t r a c t The health cost

  3. Switching Kalman Filter-Based Approach for Tracking and Event Detection at Traffic Intersections

    E-Print Network [OSTI]

    He, Sheng

    Switching Kalman Filter-Based Approach for Tracking and Event Detection at Traffic Intersections, and (ii) a simple event detection system using the results of a switching Kalman filter in combination outdoor traffic scenes. Keywords­ Event detection, switching Kalman filter, multi- ple cue-based tracking

  4. Roadmap: Aeronautics-Air Traffic Control -Bachelor of Science [AT-BS-AERN-ATC

    E-Print Network [OSTI]

    Sheridan, Scott

    Roadmap: Aeronautics- Air Traffic Control - Bachelor of Science [AT-BS-AERN-ATC] College of Applied This roadmap is a recommended semester-by-semester plan of study for this major. However, courses #12;Roadmap: Aeronautics- Air Traffic Control - Bachelor of Science [AT-BS-AERN-ATC] College

  5. Rapid Traffic Information Dissemination Using Named Data Los Angeles, CA, USA

    E-Print Network [OSTI]

    California at Los Angeles, University of

    Rapid Traffic Information Dissemination Using Named Data Lucas Wang UCLA Los Angeles, CA, USA lucas@us.toyota-itc.com Lixia Zhang UCLA Los Angeles, CA, USA lixia@cs.ucla.edu ABSTRACT This paper applies the Named Data traffic information dissemination application based on the data naming design from our previ- ous work

  6. Efficient Mining of the Multidimensional Traffic Cluster Hierarchy for Digesting, Visualization, and Anomaly Identification*

    E-Print Network [OSTI]

    Yener, Aylin

    1 Efficient Mining of the Multidimensional Traffic Cluster Hierarchy for Digesting, Visualization) 865-7065 Abstract Mining traffic traces to identify the dominant flows sent over a given link, over, and visualization of unexpected phenomena. Recently, Estan et al. advanced a comprehensive data mining structure

  7. Sources of Traffic Demand Variability and Use of Monte Carlo for Network Capacity Planning

    E-Print Network [OSTI]

    Cortes, Corinna

    to deal with rightfully angry business and finance teams: physical resources start depreciating the moment the sources of traffic demand variability and dive into Monte-Carlo methodology as an efficient way; throughput; traffic; concurrency; availability; node-and-link model; fast-time simulation; agent

  8. From Jammer to Gambler: Modeling and Detection of Jamming Attacks against Time-Critical Traffic

    E-Print Network [OSTI]

    Wang, Wenye

    From Jammer to Gambler: Modeling and Detection of Jamming Attacks against Time-Critical Traffic attacks. However, existing methods to characterize and detect jamming attacks cannot be applied directly. In this paper, we aim at modeling and detecting jamming attacks against time-critical traffic. We introduce

  9. Bigazzi, Figliozzi, and Clifton 1 Motorists' Exposure to Traffic-Related Air Pollution:1

    E-Print Network [OSTI]

    Bertini, Robert L.

    Bigazzi, Figliozzi, and Clifton 1 1 Motorists' Exposure to Traffic-Related Air Pollution:1 Modeling to traffic-related pollution. Large peak-period trip exposures are5 primarily the result of increased pollutants (3), which progressively degrade urban20 air quality (4). Because of coincident vehicle and human

  10. A non-continuum approach to obtain a macroscopic model for the flow of traffic 

    E-Print Network [OSTI]

    Tyagi, Vipin

    2007-09-17T23:59:59.000Z

    by continuum models for the flow of traffic. The number of vehicles in a typical section of a freeway does not justify traffic being treated as a continuum. It is also important to recognize that the basic premises of kinetic theory are not appropriate...

  11. INSTITUT NATIONAL DE RECHERCHE EN INFORMATIQUE ET EN AUTOMATIQUE WDM Mesh Networks with Dynamic Traffic

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    the demands and the required wavelengths in all time. Key-words: WDM, dynamic traffic, linear programming. It considers the problem of routing working traffic and assigning wavelengths in an all-optical network avoiding if possible that wavelengths assignment changes and flow rerouting. The model allows to know when

  12. VIRTUAL REALITY DRIVING SIMULATION: Integrating Infrastructure Plans, Traffic Models, and Driving Behaviors

    E-Print Network [OSTI]

    to include 3D models, animated traffic and human characters, as well as functions that allow users to take-1- VIRTUAL REALITY DRIVING SIMULATION: Integrating Infrastructure Plans, Traffic Models@forum8.co.jp Summary: This paper presents a virtual reality (VR) system that enables large

  13. MaxMAC: a Maximally Traffic-Adaptive MAC Protocol for Wireless Sensor Networks

    E-Print Network [OSTI]

    Braun, Torsten

    consumption, researchers have proposed Energy-Efficient Medium Access (E2 -MAC) protocols that switch- traffic phases, while still exhibiting a high energy-efficiency in periods of sparse traffic. The paper-based scenarios require reasonable quality of service during periods of increased activity, and a high energy-efficiency

  14. Riemann Solver for a Kinematic Wave Traffic Model with Discontinuous Flux$

    E-Print Network [OSTI]

    Stockie, John

    Riemann Solver for a Kinematic Wave Traffic Model with Discontinuous Flux$ Jeffrey K. Wiensa class of kinematic wave15 traffic models that couple the conservation law Eq. (1) with a variety as 0. For certain initial data, the Riemann problem can give rise to zero waves that propagate

  15. An Empirical Approach to Modeling Inter-AS Traffic Matrices Hyunseok Chang Sugih Jamin

    E-Print Network [OSTI]

    Mao, Zhuoqing Morley

    . These techniques rely on link measure- ments, flow measurements, or routing-related data to infer traffic demand data needed (e.g., ingress-egress demand) and data most readily available (e.g., link measurements for modeling inter-AS traffic demand that relies exclusively on publicly available/obtainable mea- surements

  16. Scheduling Automated Traffic on a Network of Arvind Giridhar and P.R. Kumar

    E-Print Network [OSTI]

    vehicles which are au- tomatically driven along smart highways and/or city roads [2], [3]. Such automation consider the problem of scheduling automated traffic in a city. Such automatic scheduling can improve algorithm and evaluate its performance through simulations. Index Terms: Traffic scheduling, smart vehicles

  17. A non-continuum approach to obtain a macroscopic model for the flow of traffic

    E-Print Network [OSTI]

    Tyagi, Vipin

    2007-09-17T23:59:59.000Z

    by continuum models for the flow of traffic. The number of vehicles in a typical section of a freeway does not justify traffic being treated as a continuum. It is also important to recognize that the basic premises of kinetic theory are not appropriate...

  18. Max-Weight Scheduling in Queueing Networks With Heavy-Tailed Traffic

    E-Print Network [OSTI]

    Markakis, Mihalis G.

    We consider the problem of scheduling in a single-hop switched network with a mix of heavy-tailed and light-tailed traffic and analyze the impact of heavy-tailed traffic on the performance of Max-Weight scheduling. As a ...

  19. The dynamic classification and identification of network applications responsible for network traffic

    E-Print Network [OSTI]

    Zander, Sebastian

    -taps based on statistical summaries of traffic details) Intrusion detection (detect suspicious activities Dynamic access control (adaptive firewalls that can detect forbidden applications, Denial of Service (Do for network traffic flows offers substantial benefits to a number of key areas in IP network engineering

  20. A Machine Learning Approach for Efficient Traffic Classification Wei Li and Andrew W. Moore

    E-Print Network [OSTI]

    Hand, Steven

    . It serves as the input for practical solutions such as network monitoring, quality- of-service and intrusion-detection efficient monitoring, auditing and intelligent control over the traffic, but the success of the Internet has of encapsulated or encrypted traffic is increasing. Examples include proxies, VPN, tunneling, and applications

  1. A First Look at Cellular Machine-to-Machine Traffic Large Scale Measurement and Characterization

    E-Print Network [OSTI]

    Liu, Alex X.

    of businesses and applications such as telematics, smart metering, point-of-sale terminals, and home security Machine-to-Machine (M2M) commu- nication is fast becoming a market-changing force for a wide spectrum traffic resulting in bursty aggregate traffic volumes, and are less mobile compared to smart- phones

  2. Simulative Evaluation of a UMTS-based Car-to-Infrastructure Traffic Information System

    E-Print Network [OSTI]

    Breu, Ruth

    Simulative Evaluation of a UMTS-based Car-to-Infrastructure Traffic Information System (Invited-to-Infrastructure (C2I) applications. Based on our simulation framework, we evaluated a UMTS-based Traffic Information model of the simulated UMTS-based Car-to-Infrastructure communication system 3G networks are quite

  3. Abstract--We describe in this article a multiagent urban traffic simulation, as we believe individual-based modeling is

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of the network from purely geometric data, ESRI shapefiles. We then explain how we include traffic related data

  4. Protection Over Asymmetric Channels, S-MATE: Secure Multipath Adaptive Traffic Engineering

    E-Print Network [OSTI]

    Aly, Salah A; Poor, H Vincent; Walid, Anwar I

    2010-01-01T23:59:59.000Z

    Several approaches have been proposed to the problem of provisioning traffic engineering between core network nodes in Internet Service Provider (ISP) networks. Such approaches aim to minimize network delay, increase capacity, and enhance security services between two core (relay) network nodes, an ingress node and an egress node. MATE (Multipath Adaptive Traffic Engineering) has been proposed for multipath adaptive traffic engineering between an ingress node (source) and an egress node (destination) to distribute the network flow among multiple disjoint paths. Its novel idea is to avoid network congestion and attacks that might exist in edge and node disjoint paths between two core network nodes. This paper proposes protection schemes over asymmetric channels. Precisely, the paper aims to develop an adaptive, robust, and reliable traffic engineering scheme to improve performance and reliability of communication networks. This scheme will also provision Quality of Server (QoS) and protection of traffic engine...

  5. IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 47, NO. 1, FEBRUARY 1998 321 A Real-Time Traffic Simulation System

    E-Print Network [OSTI]

    Chronopoulos, Anthony T.

    be used for real-time traffic control and drivers' guidance. Accurate mathematical and computer modeling of the collective behavior of the traffic, designing efficient control and management strategies, assessing the effects of roadway geometries, and in the design of new highway lanes. Traffic models can be characterized

  6. SITE-CONTROLLED SECURE MULTI-HOMING AND TRAFFIC ENGINEERING FOR IP Randall Atkinson Saleem Bhatti Steve Hailes

    E-Print Network [OSTI]

    Bhatti, Saleem N.

    SITE-CONTROLLED SECURE MULTI-HOMING AND TRAFFIC ENGINEERING FOR IP Randall Atkinson Saleem Bhatti Grid, including the global Internet. Similarly, the ability to provide traffic engineering for a site. Current approaches to site multi-homing and site traffic engineering (a) re- quire assistance from

  7. GT: picking up the truth from the ground for Internet traffic F. Gringoli, L. Salgarelli, M. Dusi

    E-Print Network [OSTI]

    California at San Diego, University of

    of Internet traffic modeling, firewall, and intrusion detection research requires traces where some ground. But DPI is ineffective when traffic is encrypted and ambiguous when different protocols exhibit similarGT: picking up the truth from the ground for Internet traffic F. Gringoli, L. Salgarelli, M. Dusi

  8. Pollution prevention program plan 1996

    SciTech Connect (OSTI)

    NONE

    1996-06-01T23:59:59.000Z

    This plan serves as the principal crosscutting guidance to Department of Energy (DOE) Headquarters, Operations Office, laboratory, and contractor management to fully implement pollution prevention programs within the DOE complex between now and 2000. To firmly demonstrate DOE`s commitment to pollution prevention, the Secretary of Energy has established goals, to be achieved by December 31, 1999, that will aggressively reduce DOE`s routine generation of radioactive, mixed, and hazardous wastes, and total releases and offsite transfers of toxic chemicals. The Secretary also has established sanitary waste reduction, recycling, and affirmative procurement goals. Site progress in meeting these goals will be reported annually to the Secretary in the Annual Report on Waste Generation and Waste Minimization Progress, using 1993 as the baseline year. Implementation of this plan will represent a major step toward reducing the environmental risks and costs associated with DOE operations.

  9. Autonomous Traffic Control System Using Agent Based Technology

    E-Print Network [OSTI]

    M, Venkatesh; V, Srinivas

    2011-01-01T23:59:59.000Z

    The way of analyzing, designing and building of real-time projects has been changed due to the rapid growth of internet, mobile technologies and intelligent applications. Most of these applications are intelligent, tiny and distributed components called as agent. Agent works like it takes the input from numerous real-time sources and gives back the real-time response. In this paper how these agents can be implemented in vehicle traffic management especially in large cities and identifying various challenges when there is a rapid growth of population and vehicles. In this paper our proposal gives a solution for using autonomous or agent based technology. These autonomous or intelligent agents have the capability to observe, act and learn from their past experience. This system uses the knowledge flow of precedent signal or data to identify the incoming flow of forthcoming signal. Our architecture involves the video analysis and exploration using some Intelligence learning algorithm to estimate and identify the...

  10. Stormwater Pollution Prevention Plan Prepared by

    E-Print Network [OSTI]

    Eisen, Michael

    Stormwater Pollution Prevention Plan Prepared by: Environment, Health, Safety, and Security .....................................................16 3.0 Potential Sources of Pollution

  11. Maintenance and Prevention: Formalization and Fixpoint Characterization

    E-Print Network [OSTI]

    Maintenance and Prevention: Formalization and Fixpoint Characterization Munindar P. Singh Maintenance and prevention are important concepts in the science of intel­ ligent systems, yet serious research attention. Maintenance and prevention are duals of each other, but cannot be reduced

  12. Optimal Preventive Maintenance Scheduling in Semiconductor Manufacturing

    E-Print Network [OSTI]

    Marcus, Steven I.

    1 Optimal Preventive Maintenance Scheduling in Semiconductor Manufacturing Xiaodong Yao, Emmanuel on Control Applications in 2001. #12;2 Abstract Preventive Maintenance (PM) scheduling is a very challenging schedule with that of a baseline reference schedule are also presented. Index Terms preventive maintenance

  13. Pollution Prevention and Lean Manufacturing Paper # 360

    E-Print Network [OSTI]

    Pollution Prevention and Lean Manufacturing Paper # 360 Harry W. Edwards and Jason M. Jonkman, the CSU IAC promotes energy conservation, pollution prevention, and productivity improvement. During that generated a total of 467 assessment recommendations (ARs) with pollution prevention benefits. Such benefits

  14. Design of a Host Traffic Management system for Hard Real Time networks

    E-Print Network [OSTI]

    Krishna Moorthy, Jayasankar

    1997-01-01T23:59:59.000Z

    MODEL A. What Is NetEx? . B. NetEx Block Schematic . . C. The Host Traffic Manager D. The Network Traffic Manager (NTM) III DESIGN OF THE HOST TRAFFIC MANAGER A. Design Requirements B. Design Methodology C. HTM ? System Layout D. Design... of Future Work REFERENCES . 7 7 9 10 12 12 13 16 17 22 25 27 29 32 32 32 36 37 39 39 41 43 45 CHAPTER Page VITA 47 LIST OF FIGURES FIGURE Page Decomposition of Connection into Servers ISO OSI Model NetEx Block Schematic I...

  15. Pollution Prevention Program: Technology summary

    SciTech Connect (OSTI)

    Not Available

    1994-02-01T23:59:59.000Z

    The Department of Energy (DOE) has established a national Research, Development, Demonstration, Testing, and Evaluation (RDDT&E) Program for pollution prevention and waste minimization at its production plants During FY89/90 the Office of Environmental Restoration and Waste Management (EM), through the Office of Technology Development (OTD), established comprehensive, pollution prevention technical support programs to demonstrate new, environmentally-conscious technology for production processes. The RDDT&E program now entails collaborative efforts across DOE. The Pollution Prevention Program is currently supporting three major activities: The DOE/US Air Force Memorandum of Understanding Program is a collaborative effort to utilize the combined resources of DOE and the Department of Defense, eliminate duplication of effort in developing technologies, and to facilitate technology solutions aimed at reducing waste through process modification, material substitution or recycling. The Waste Component Recycle, Treatment and Disposal Integrated Demonstration (WeDID) will develop recycle, treatment, and disposal processes and associated technologies for use in the dismantlement of non-nuclear weapons components, to support US arms treaties and policies. This program will focus on meeting all security and regulatory requirements (with additional benefit to the commercial electronics industry). The Environmentally Conscious Manufacturing Integrated Demonstration (ECMID) will effectively implement ECM technologies that address both the needs of the DOE Complex and US electronics industry, and encourage strong interaction between DOE and US industry. The ECMID will also develop life cycle analysis tools that will aid decisionmakers in selecting the optimum process based on the tradeoffs between cost an environmental impact.

  16. Orientation to pollution prevention for facility design

    SciTech Connect (OSTI)

    Raney, E.A.; Whitehead, J.K.; Encke, D.B. [Westinghouse Hanford Co., Richland, WA (United States); Dorsey, J.A. [Kaiser Engineers Hanford Co., Richland, WA (United States)

    1994-01-01T23:59:59.000Z

    This material was developed to assist engineers in incorporating pollution prevention into the design of new or modified facilities within the U.S. Department of Energy (DOE). The material demonstrates how the design of a facility can affect the generation of waste throughout a facility`s entire life and it offers guidance on how to prevent the generation of waste during design. Contents include: Orientation to pollution prevention for facility design training course booklet; Pollution prevention design guideline; Orientation to pollution prevention for facility design lesson plan; Training participant survey and pretest; and Training facilitator`s guide and schedule.

  17. Environmental evaluation of municipal waste prevention

    SciTech Connect (OSTI)

    Gentil, Emmanuel C.; Gallo, Daniele [Department of Environmental Engineering, Building 115, Technical University of Denmark, DK-2800 Kongens Lyngby (Denmark); Christensen, Thomas H., E-mail: thho@env.dtu.dk [Department of Environmental Engineering, Building 115, Technical University of Denmark, DK-2800 Kongens Lyngby (Denmark)

    2011-12-15T23:59:59.000Z

    Highlights: > Influence of prevention on waste management systems, excluding avoided production, is relatively minor. > Influence of prevention on overall supply chain, including avoided production is very significant. > Higher relative benefits of prevention are observed in waste management systems relying mainly on landfills. - Abstract: Waste prevention has been addressed in the literature in terms of the social and behavioural aspects, but very little quantitative assessment exists of the environmental benefits. Our study evaluates the environmental consequences of waste prevention on waste management systems and on the wider society, using life-cycle thinking. The partial prevention of unsolicited mail, beverage packaging and food waste is tested for a 'High-tech' waste management system relying on high energy and material recovery and for a 'Low-tech' waste management system with less recycling and relying on landfilling. Prevention of 13% of the waste mass entering the waste management system generates a reduction of loads and savings in the waste management system for the different impacts categories; 45% net reduction for nutrient enrichment and 12% reduction for global warming potential. When expanding our system and including avoided production incurred by the prevention measures, large savings are observed (15-fold improvement for nutrient enrichment and 2-fold for global warming potential). Prevention of food waste has the highest environmental impact saving. Prevention generates relatively higher overall relative benefit for 'Low-tech' systems depending on landfilling. The paper provides clear evidence of the environmental benefits of waste prevention and has specific relevance in climate change mitigation.

  18. Los Alamos National Laboratory employees receive Pollution Prevention...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Pollution Prevention Awardees Los Alamos National Laboratory employees receive Pollution Prevention Awards Nearly 400 employees on 47 teams received Pollution Prevention awards for...

  19. Pollution prevention cost savings potential

    SciTech Connect (OSTI)

    Celeste, J.

    1994-12-01T23:59:59.000Z

    The waste generated by DOE facilities is a serious problem that significantly impacts current operations, increases future waste management costs, and creates future environmental liabilities. Pollution Prevention (P2) emphasizes source reduction through improved manufacturing and process control technologies. This concept must be incorporated into DOE`s overall operating philosophy and should be an integral part of Total Quality Management (TQM) program. P2 reduces the amount of waste generated, the cost of environmental compliance and future liabilities, waste treatment, and transportation and disposal costs. To be effective, P2 must contribute to the bottom fine in reducing the cost of work performed. P2 activities at LLNL include: researching and developing innovative manufacturing; evaluating new technologies, products, and chemistries; using alternative cleaning and sensor technologies; performing Pollution Prevention Opportunity Assessments (PPOAs); and developing outreach programs with small business. Examples of industrial outreach are: innovative electroplating operations, printed circuit board manufacturing, and painting operations. LLNL can provide the infrastructure and technical expertise to address a wide variety of industrial concerns.

  20. Use of Structure as a Basis for Abstraction in Air Traffic Control

    E-Print Network [OSTI]

    Davison, H. J.

    The safety and efficiency of the air traffic control domain is highly dependent on the capabilities and limitations of its human controllers. Past research has indicated that structure provided by the airspace and procedures ...

  1. Automation cueing modulates cerebral blood flow and vigilance in a simulated air traffic control task

    E-Print Network [OSTI]

    Parasuraman, Raja

    Automation cueing modulates cerebral blood flow and vigilance in a simulated air traffic control: Automation; vigilance; cerebral blood flow; mental workload; attentional resources. Automation cueing operator, depending on automation reliability. To assess these effects, transcranial Doppler sonography

  2. Preemption strategy for traffic signals at intersections near highway-railroad grade crossings

    E-Print Network [OSTI]

    Cho, Hanseon

    2004-09-30T23:59:59.000Z

    Because the operational characteristics of signalized intersections near highway-railroad grade crossings (IHRGCs) are different from those of signalized intersections located elsewhere in the traffic system, standard operational strategies do...

  3. E-Print Network 3.0 - air traffic Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    "A day in the life of air traffic in the U.S.," shows ... Source: NASA - Center-TRACTION Automation System (CTAS) Collection: Energy Storage, Conversion and Utilization 2 Table of...

  4. E-Print Network 3.0 - air traffic operations Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    "A day in the life of air traffic in the U.S.," shows ... Source: NASA - Center-TRACTION Automation System (CTAS) Collection: Energy Storage, Conversion and Utilization 2 Table of...

  5. TRAFFIC-RELATED AIR POLLUTION. A PILOT EXPOSURE1 ASSESSMENT IN BEIRUT, LEBANON2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    the use of biomarkers of exposure to benzene and BD. Personal benzene, toluene,30 ethylbenzene, and xylene as biomarker of exposure to BD in humans. Traffic policemen, who are exposed to46 hal-00914713,version1-25Jan

  6. Evaluation of TexSIM for modeling traffic behavior at diamond interchanges

    E-Print Network [OSTI]

    Meadors, Allison Christine Cherry

    1995-01-01T23:59:59.000Z

    traffic behavior at signalized diamond interchanges. To evaluate TexSIM 2.0 for simulating and providing accurate descriptive measures of performance for pretimed and actuated diamond interchanges, model outputs were compared to field data collected from...

  7. Solving the additive eigenvalue problem associated to a dynamics of a 2D-traffic system

    E-Print Network [OSTI]

    Nadir Farhi

    2009-08-25T23:59:59.000Z

    This is a technical note where we solve the additive eigenvalue problem associated to a dynamics of a 2D-traffic system. The traffic modeling is not explained here. It is available in \\cite{Far08}. It consists of a microscopic road traffic model of two circular roads crossing on one junction managed with the priority-to-the-right rule. It is based on Petri nets and minplus algebra. One of our objectives in \\cite{Far08} was to derive the fundamental diagram of 2D-traffic, which is the relation between the density and the flow of vehicles. The dynamics of this system, derived from a Petri net design, is non monotone and additively homogeneous of degree 1. In this note, we solve the additive eigenvalue problem associated to this dynamics.

  8. Evolution of domestic traffic and fares at the top 200 US airports between 1990 and 2008

    E-Print Network [OSTI]

    Ben Abda, Mehdi

    2010-01-01T23:59:59.000Z

    The main objective of this thesis is to analyze the evolution of domestic Origin- Destination (O-D) traffic and fares at the Top 200 airports in the United States between 1990 and 2008. The impetus behind this research is ...

  9. A microcomputer based traffic evacuation modeling system for emergency planning application

    SciTech Connect (OSTI)

    Rathi, A.K.

    1994-12-01T23:59:59.000Z

    Vehicular evacuation is one of the major and often preferred protective action options available for emergency management in a real or anticipated disaster. Computer simulation models of evacuation traffic flow are used to estimate the time required for the affected populations to evacuate to safer areas, to evaluate effectiveness of vehicular evacuations as a protective action option. and to develop comprehensive evacuation plans when required. Following a review of the past efforts to simulate traffic flow during emergency evacuations, an overview of the key features in Version 2.0 of the Oak Ridge Evacuation Modeling System (OREMS) are presented in this paper. OREMS is a microcomputer-based model developed to simulate traffic flow during regional emergency evacuations. OREMS integrates a state-of-the-art dynamic traffic flow and simulation model with advanced data editing and output display programs operating under a MS-Windows environment.

  10. Investigating conformance monitoring issues in air traffic control using fault detection approaches

    E-Print Network [OSTI]

    Reynolds, Tom George, 1972-

    2004-01-01T23:59:59.000Z

    In order to maintain Air Traffic Control (ATC) system safety, security and efficiency, conformance monitoring must be performed to ensure that aircraft adhere to their assigned clearances. New Decision Support Tools (DSTs), ...

  11. Developing a methodology to account for commercial motor vehicles using microscopic traffic simulation models

    E-Print Network [OSTI]

    Schultz, Grant George

    2004-09-30T23:59:59.000Z

    with an increased availability of CMV data. The primary sources of these data are automatic vehicle classification (AVC) and weigh-in-motion (WIM). Microscopic traffic simulation models have been used extensively to model the dynamic and stochastic nature...

  12. Assessment of older driver understanding of certain traffic control devices in Texas

    E-Print Network [OSTI]

    Hulett, Stephanie Renee

    2000-01-01T23:59:59.000Z

    The purpose of this research was to assess older Texas drivers on their understanding of nine traffic control devices and identify the devices that are misunderstood by people 65 years and older. Additionally, older driver education programs were...

  13. Air Traffic Control and Alert Agent Henry Hexmoor and Tim Heng

    E-Print Network [OSTI]

    Hexmoor, Henry

    Air Traffic Control and Alert Agent Henry Hexmoor and Tim Heng University of North Dakota Grand Forks, North Dakota, USA {hexmoor,heng}@cs.und.edu ABSTRACT This paper presents an agent program

  14. Aviation safety. Serious problems concerning the Air Traffic Control work force

    SciTech Connect (OSTI)

    Not Available

    1986-03-01T23:59:59.000Z

    This report provides the results of an extensive study of the air traffic control work force and includes conclusions and recommendations. The report shows that the Federal Aviation Administration (FAA) has not met its goals for fully qualified (FPL) controllers at many major facilities, and that the growth in air traffic activity as caused controller work load to reach a point where controllers are stretched too thin. Controllers and their supervisors have expressed serious concerns about their ability to continue to maintain the proper margin of safety. We recommend that FAA impose restrictions on air traffic until both the number of FPL controllers and overtime requirements meet FAA's goals. Problems relating to both the number of FPLs and overtime are most acute at the air route traffic control centers and FAA must recognize this in deciding what restrictions to impose.

  15. Combining Routing and Traffic Data for Detection of IP Forwarding Anomalies

    E-Print Network [OSTI]

    Roughan, Matthew

    Monitoring, C.4 Reliability, availability, and serviceability. General Terms: Algorithms, Management, Reliability. Keywords: Network anomaly detection, routing, BGP, traffic, SNMP. ABSTRACT IP forwarding anomalies, triggered by equipment failures, imple- mentation bugs, or configuration errors, can

  16. AC&N Incident Reporting The Colorado School of Mines takes all complaints about inappropriate traffic

    E-Print Network [OSTI]

    . If the attack is currently in progress, you should expect the traffic to stop shortly after we have verified are not currently experiencing problems, please send your report via email. · For more information about contacting

  17. Driving segments analysis for energy and environmental impacts of worsening traffic

    E-Print Network [OSTI]

    Feng, Wen, Ph. D. Massachusetts Institute of Technology

    2007-01-01T23:59:59.000Z

    During the last two decades, traffic congestion in the U.S. has increased from 30% to 67% of peak period travel. Further, current research shows that measures taken within transportation systems, such as adding capacity, ...

  18. DEVELOPING VISUALIZATION TOOLS FOR THE DESIGN OF AIR TRAFFIC CONTROL EXPERIMENTS

    E-Print Network [OSTI]

    Cummings, Mary "Missy"

    for those human factors researchers and practitioners designing experiments. Designing an experimentDEVELOPING VISUALIZATION TOOLS FOR THE DESIGN OF AIR TRAFFIC CONTROL EXPERIMENTS ABSTRACT While, little attention has been paid to developing visualization tools for human factors researchers designing

  19. Optimal Vehicle Routing with Real-Time Traffic Information Seongmoon Kim1

    E-Print Network [OSTI]

    Lewis, Mark E.

    to accidents, bad weather, traffic con- gestion, etc., trucks hauling time-sensitive freight build "buffer time cost. Indeed a truck parked at the origin is less expensive than one that is in use. Moreover

  20. Real-time trajectory optimization and air traffic control simulation for noise abatement approach procedures

    E-Print Network [OSTI]

    Zou, Feng, 1977-

    2004-01-01T23:59:59.000Z

    Aircraft noise is a major obstacle to the growth of aviation. This thesis presents an adaptive onboard real-time optimization algorithm and an Air Traffic Control simulation model that can minimize the aircraft approach ...

  1. Assessment of durability performance of "Early-Opening-to-Traffic" Portland Cement Concrete pavement and patches

    E-Print Network [OSTI]

    Shrestha, Pradhumna Babu

    1999-01-01T23:59:59.000Z

    This study relates the assessment of durability to ''early-opening-to-traffic'' (EOT) portland cement concrete (PCC). Several factors were identified relative to the performance of EOT PCC. Each of these factors was considered in terms of freeze...

  2. Throughput Optimal Scheduling Over Time-Varying Channels in the Presence of Heavy-Tailed Traffic

    E-Print Network [OSTI]

    Jagannathan, Krishna

    We study the problem of scheduling over time varying links in a network that serves both heavy-tailed and light tailed traffic. We consider a system consisting of two parallel queues, served by a single server. One of the ...

  3. Throughput Optimal Scheduling in the Presence of Heavy-Tailed Traffic

    E-Print Network [OSTI]

    Jagannathan, Krishna Prasanna

    We investigate the tail behavior of the steady-state queue occupancies under throughput optimal scheduling in the presence of heavy-tailed traffic. We consider a system consisting of two parallel queues, served by a single ...

  4. Real-time analysis of aggregate network traffic for anomaly detection

    E-Print Network [OSTI]

    Kim, Seong Soo

    2005-08-29T23:59:59.000Z

    The frequent and large-scale network attacks have led to an increased need for developing techniques for analyzing network traffic. If efficient analysis tools were available, it could become possible to detect the attacks, anomalies...

  5. Evaluation of enhanced traffic control devices for use at highway-railroad grade crossings

    E-Print Network [OSTI]

    Carroll, Randy W.

    2000-01-01T23:59:59.000Z

    train volumes. The majority of grade crossings will continue to have only signs and markings that provide passive warning to drivers because it is not economically feasible to provide active control at each grade crossing. Thus, enhanced traffic control...

  6. Evaluation of traffic operations at diamond interchanges using advanced actuated control

    E-Print Network [OSTI]

    Koonce, Peter John Vincent

    1998-01-01T23:59:59.000Z

    This thesis documents an operational analysis of ographics. advanced actuated traffic control at signalized diamond interchanges. The study attempts to determine the benefits a "flexible'' phasing strategy provides to the interchange. Flexible...

  7. Analysis of seasonal and day-of-week traffic patterns at national parks

    E-Print Network [OSTI]

    Liggett, Lindsay Elizabeth

    2009-05-15T23:59:59.000Z

    The National Park Service (NPS) is currently contemplating the implementation of a system-wide traffic monitoring program. While several of the national parks within this network collect continuous vehicle data at multiple stations within each park...

  8. Multi-step-ahead prediction of MPEG-coded video source traffic using empirical modeling techniques 

    E-Print Network [OSTI]

    Gupta, Deepanker

    2006-04-12T23:59:59.000Z

    In the near future, multimedia will form the majority of Internet traffic and the most popular standard used to transport and view video is MPEG. The MPEG media content data is in the form of a time-series representing ...

  9. Airport surface traffic optimization and simulation in the presence of uncertainties

    E-Print Network [OSTI]

    Lee, Hanbong

    2014-01-01T23:59:59.000Z

    Surface traffic congestion causes significant taxi delays and long queues for takeoffs at busy airports, increasing operational and environmental costs. These impacts may be mitigated by optimizing runway and taxiway ...

  10. Validation of the Highway Performance Monitoring System for forecasting levels of traffic

    E-Print Network [OSTI]

    Bray, Rebecca Anne

    1995-01-01T23:59:59.000Z

    This thesis documents the results and studies conducted when determining the accuracy of the Texas Department of Transportation (TXDOT) methodology of forecasting future levels of traffic demand. The data that was used was the Federal Highway...

  11. A continuous traffic study - estimation of population parameters and the variance of the estimated parameters

    E-Print Network [OSTI]

    Dresser, George Brayton

    1969-01-01T23:59:59.000Z

    are pre- ;ected. The operating ratio is defined and its use for regulatory pur- poses discussed. Procedures for the estimation of operating ratios from CTS and cost data are explained. An approximate formula for the variance of the ratio of two random... 31 TEXAS INTRASTATE TRAFFIC 1967 (Operating Ratio by Actual Weight of Shipment). . 32 TEXAS INTRASTATE TRAFFIC 1967 (Operating Ratio by Number Miles Shipm nt Moved) 33 CHAPTER I STATEMENT QF THE PRGBLEM 1. 1 Introduction The Southwestern...

  12. Performance Analysis of Transactional Traffic in Mobile Ad-hoc Networks

    E-Print Network [OSTI]

    Cheng, Yufei

    2014-05-31T23:59:59.000Z

    are expected to present different characteristics and pose different requirements for transport protocols as well as routing protocols. The canonical transport protocol to carry transactional traffic is HTTP on TCP, there are several drawbacks for TCP to better... contribution from the ResiliNets group we have mod- eled DSDV routing protocol [19], 3D–Gauss-Markov mobility model [20], TDMA MAC protocol, DSR routing protocol [21], and HTTP traffic generator [22], TCP Westwood and Westwood+ [23]. This thesis demonstrates...

  13. ShadowNet: An Active Defense Infrastructure for Insider Cyber Attack Prevention

    SciTech Connect (OSTI)

    Cui, Xiaohui [ORNL; Beaver, Justin M [ORNL; Treadwell, Jim N [ORNL

    2012-01-01T23:59:59.000Z

    The ShadowNet infrastructure for insider cyber attack prevention is comprised of a tiered server system that is able to dynamically redirect dangerous/suspicious network traffic away from production servers that provide web, ftp, database and other vital services to cloned virtual machines in a quarantined environment. This is done transparently from the point of view of both the attacker and normal users. Existing connections, such as SSH sessions, are not interrupted. Any malicious activity performed by the attacker on a quarantined server is not reflected on the production server. The attacker is provided services from the quarantined server, which creates the impression that the attacks performed are successful. The activities of the attacker on the quarantined system are able to be recorded much like a honeypot system for forensic analysis.

  14. System and method for statistically monitoring and analyzing sensed conditions

    DOE Patents [OSTI]

    Pebay, Philippe P. (Livermore, CA); Brandt, James M. (Dublin, CA); Gentile, Ann C. (Dublin, CA); Marzouk, Youssef M. (Oakland, CA); Hale, Darrian J. (San Jose, CA); Thompson, David C. (Livermore, CA)

    2011-01-25T23:59:59.000Z

    A system and method of monitoring and analyzing a plurality of attributes for an alarm condition is disclosed. The attributes are processed and/or unprocessed values of sensed conditions of a collection of a statistically significant number of statistically similar components subjected to varying environmental conditions. The attribute values are used to compute the normal behaviors of some of the attributes and also used to infer parameters of a set of models. Relative probabilities of some attribute values are then computed and used along with the set of models to determine whether an alarm condition is met. The alarm conditions are used to prevent or reduce the impact of impending failure.

  15. System and method for statistically monitoring and analyzing sensed conditions

    DOE Patents [OSTI]

    Pebay, Philippe P. (Livermore, CA); Brandt, James M. (Dublin, CA), Gentile; Ann C. (Dublin, CA), Marzouk; Youssef M. (Oakland, CA), Hale; Darrian J. (San Jose, CA), Thompson; David C. (Livermore, CA)

    2010-07-13T23:59:59.000Z

    A system and method of monitoring and analyzing a plurality of attributes for an alarm condition is disclosed. The attributes are processed and/or unprocessed values of sensed conditions of a collection of a statistically significant number of statistically similar components subjected to varying environmental conditions. The attribute values are used to compute the normal behaviors of some of the attributes and also used to infer parameters of a set of models. Relative probabilities of some attribute values are then computed and used along with the set of models to determine whether an alarm condition is met. The alarm conditions are used to prevent or reduce the impact of impending failure.

  16. System and method for statistically monitoring and analyzing sensed conditions

    DOE Patents [OSTI]

    Pebay, Philippe P. (Livermore, CA); Brandt, James M. (Dublin, CA); Gentile, Ann C. (Dublin, CA); Marzouk, Youssef M. (Oakland, CA); Hale, Darrian J. (San Jose, CA); Thompson, David C. (Livermore, CA)

    2011-01-04T23:59:59.000Z

    A system and method of monitoring and analyzing a plurality of attributes for an alarm condition is disclosed. The attributes are processed and/or unprocessed values of sensed conditions of a collection of a statistically significant number of statistically similar components subjected to varying environmental conditions. The attribute values are used to compute the normal behaviors of some of the attributes and also used to infer parameters of a set of models. Relative probabilities of some attribute values are then computed and used along with the set of models to determine whether an alarm condition is met. The alarm conditions are used to prevent or reduce the impact of impending failure.

  17. Storm water pollution prevention plans

    SciTech Connect (OSTI)

    Rossmiller, R.L. (HDR Engineering, Inc., Bellevue, WA (United States))

    1993-03-01T23:59:59.000Z

    National Pollutant Discharge Elimination System (NPDES) general permit applications for industrial storm water discharge were to have been filed by October 1992. The Environmental Protection Agency (EPA) and state agencies are now issuing permits based on these applications. One compliance aspect of the permits is the Storm Water Pollution Prevention Plan (SWP3). The plan must identify the facility's potential sources of storm water pollution and develop and implement best management practices (BMPs) to reduce pollutants in storm water runoff. The objectives of the NPDES storm water program are to eliminate illegal dumping and illicit connections, and to reduce pollutants in industrial storm water discharge. These regulations require industry to develop detailed facility site maps, and describe the types, amounts and locations of potential pollutants. Based on this information, industry can develop and implement best management practices to reduce pollutants in storm water runoff.

  18. Pollutant Discharge Prevention and Control Act (Florida)

    Broader source: Energy.gov [DOE]

    The Department of Environmental Protection is responsible for enacting regulations to prevent and mitigate the release of pollutants into the land and waters of the state. This legislation...

  19. Optimization Online - Optimizing Preventive Maintenance Models

    E-Print Network [OSTI]

    Michael Bartholomew-Biggs

    2004-06-29T23:59:59.000Z

    Jun 29, 2004 ... Abstract: We deal with the problem of scheduling preventive maintenance (PM) by minimizing a performance function which reflects repair and ...

  20. Site Discharge Pollution Prevention Plan (SDPPP)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    SDPPP Individual Permit: Site Discharge Pollution Prevention Plan (SDPPP) The 2012 SDPPP update fully incorporates all changes made during the year and reflects changes projected...

  1. Pollution Prevention - Environmental Impact Reduction Checklists...

    Broader source: Energy.gov (indexed) [DOE]

    provides a valuable opportunity for Federal agency NEPA309 reviewers to incorporate pollution prevention and environmental impact reduction into actions (or projects). This...

  2. A continuous traffic study as a source of input data for the computation of operating ratios for selected weight brackets

    E-Print Network [OSTI]

    Jones, James Davis

    1966-01-01T23:59:59.000Z

    Purpose Scope Need for Adequate Cost Data Methods and Procedures HISTORICAL DEVELOPMENT OF FREIGHT TRAFFIC STUDIES Xn tro due t ion Waybill Studies Special Purpose Studies General Purpose Studies Continuous Waybi, ll Sample Sample Selection... Uses of Waybill Data Freight Bill Studies One' Day Studies Fixed Period Studies Continuous Traffic Studies Continuous Traffic Study and the Regulatory Body Summary METHODOLOGY sge 1 2 4 ) 'I 1 1 2i 21 22 26 27 27 37 38 40 42...

  3. Management processes in U.S. air traffic management modernization : a study of global navigation satellite system development

    E-Print Network [OSTI]

    Sandvig, John H.

    1994-01-01T23:59:59.000Z

    This thesis investigates organization and management issues associated with the Federal Aviation Administration's (FAA) efforts to modernize the nation's Air Traffic Management (ATM) system. Focus is placed specifically ...

  4. Traffic-related air pollution exposures and changes in heart rate variability in Mexico City: A panel study

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    to traffic-related air pollution and the risk of coronaryof particulate air pollution. Environ Health Perspect 2001,between ambient air pollution and daily mortality among

  5. Pollution Prevention Wipe Application Study

    SciTech Connect (OSTI)

    Lopez, E.P.; Modderman, W.E.; Montoya, M.G.

    1999-02-10T23:59:59.000Z

    As part of a pollution prevention program, a study was conducted at Sandia National Laboratories and at the Amarillo, ''Pantex Plant'' to identify a suitable replacement solvent(s) for cleaning hardware during routine maintenance operations. Current cleaning is performed using solvents (e.g. acetone, toluene, MEK, alcohols) that are classified as Resource Conservation and Recovery Act (RCW) materials. The Environmental Protection Agency (EPA) has assigned four characteristics as the criteria for determining whether a material is identified as hazardous under RCRA: Ignitability, Corrosivity, Reactivity and Toxicity. Within the DOE and DoD sector, these solvents are used with hand wipes to clean surfaces prior to O-ring replacement, to remove decals for new labeling, to clean painted surfaces prior to reconditioning, and for other general maintenance purposes. In some cases, low level radioactive contamination during cleaning necessitates that the RCIL4 solvent-containing wipes be classified as mixed waste. To avoid using RCRA materials, cleaning candidates were sought that had a flashpoint greater than 140 F, a pH between 2.5 and 12.5, and did not fail the reactivity and toxicity criteria. Three brominated cleaners, two hydrofluoroether azeotropes and two aliphatic hydrocarbon cleaner formulations were studied as potential replacements. Cleaning efficacy, materials compatibility, corrosion and accelerated aging studies were conducted and used to screen potential candidates. Hypersolve NPB (an n-propyl bromide based formulation) consistently ranked high in removing typical contaminants for weapons applications.

  6. Pollution Prevention and New Industrial Estates

    E-Print Network [OSTI]

    Heal, Kate

    1 Pollution Prevention and New Industrial Estates Chris Pittner Associate Director WSP 21 May 2012 POLLUTION PREVENTION AND NEW INDUSTRIAL ESTATES Pollution within Industrial Estates Legal Framework and Guidance Surface Water Management Project Examples #12;2 POLLUTION WITHIN INDUSTRIAL ESTATES Sources Poor

  7. Revised: May 2011 Fraud Prevention Policy

    E-Print Network [OSTI]

    Mottram, Nigel

    Revised: May 2011 Fraud Prevention Policy #12;Fraud Prevention Policy March 2011 1 Contents Page 1. Introduction 2 2. Basis of the Policy 3 3. Purpose and Definitions 3 4. Management and Staff Responsibilities 4 5. Adherence to University Regulations, Policies and Procedures 4 6. Code of Conduct on Commercial

  8. Application of environmental accounting to pollution prevention

    SciTech Connect (OSTI)

    Del Mar, R.A.

    1997-08-19T23:59:59.000Z

    Environmental accounting represents a major paradigm shift in the way most companies account for costs and benefits. However, it is a change that must be made if pollution prevention is to become institutionalized into the corporate and government mainstream. Pollution prevention investments must be justified on an economic basis; without environmental accounting tools, pollution prevention investments cannot show their true profitability. This is because traditional accounting methods only track billable costs, thus ignoring some of the major benefits of pollution prevention investments, which are indirect savings resulting from a lessening of a company`s regulatory compliance burden and present and future liabilities. This paper discusses how to apply environmental accounting principles to pollution prevention assessments to improve the outcome of profitability analyses.

  9. EVALUATION OF THE PAVEMENT STRUCTURAL CONDITION AT NETWORK LEVEL USING FALLING WEIGHT

    E-Print Network [OSTI]

    Manuel, Lance

    EVALUATION OF THE PAVEMENT STRUCTURAL CONDITION AT NETWORK LEVEL USING FALLING WEIGHT DEFLECTOMETER agencies to improve the surface condition of pavements, but these measures have not successfully prevented the problem from reoccurring. As a result, the overall pavement condition keeps deteriorating because

  10. High-speed and high-fidelity system and method for collecting network traffic

    DOE Patents [OSTI]

    Weigle, Eric H. (Los Alamos, NM)

    2010-08-24T23:59:59.000Z

    A system is provided for the high-speed and high-fidelity collection of network traffic. The system can collect traffic at gigabit-per-second (Gbps) speeds, scale to terabit-per-second (Tbps) speeds, and support additional functions such as real-time network intrusion detection. The present system uses a dedicated operating system for traffic collection to maximize efficiency, scalability, and performance. A scalable infrastructure and apparatus for the present system is provided by splitting the work performed on one host onto multiple hosts. The present system simultaneously addresses the issues of scalability, performance, cost, and adaptability with respect to network monitoring, collection, and other network tasks. In addition to high-speed and high-fidelity network collection, the present system provides a flexible infrastructure to perform virtually any function at high speeds such as real-time network intrusion detection and wide-area network emulation for research purposes.

  11. Traffic Incident Analysis on Urban Arterials Using Extended Spectral Envelope Method

    E-Print Network [OSTI]

    Yang, Zhen-zhen; Gao, Zi-you; Sun, Ya-fu; Guo, Sheng-min

    2015-01-01T23:59:59.000Z

    A traffic incident analysis method based on extended spectral envelope (ESE) method is presented to detect the key incident time. Sensitivity analysis of parameters (the length of time window, the length of sliding window and the study period) are discussed on four real traffic incidents in Beijing. The results show that: (1) Moderate length of time window got the best accurate in detection. (2) The shorter the sliding window is, the more accurate the key incident time are detected. (3) If the study period is too short, the end time of an incident cannot be detected. Empirical studies show that the proposed method can effectively discover the key incident time, which can provide a theoretic basis for traffic incident management.

  12. A multiagent urban traffic simulation Part I: dealing with the ordinary

    E-Print Network [OSTI]

    Tranouez, Pierrick; Daudé, Eric

    2009-01-01T23:59:59.000Z

    We describe in this article a multiagent urban traffic simulation, as we believe individual-based modeling is necessary to encompass the complex influence the actions of an individual vehicle can have on the overall flow of vehicles. We first describe how we build a graph description of the network from purely geometric data, ESRI shapefiles. We then explain how we include traffic related data to this graph. We go on after that with the model of the vehicle agents: origin and destination, driving behavior, multiple lanes, crossroads, and interactions with the other vehicles in day-to-day, ?ordinary? traffic. We conclude with the presentation of the resulting simulation of this model on the Rouen agglomeration.

  13. Bias Reduction and Goodness-of-Fit Tests in Conditional Logistic Regression Models

    E-Print Network [OSTI]

    Sun, Xiuzhen

    2011-10-21T23:59:59.000Z

    in conditional logistic regression by solving a modified score equation. The resultant estimator not only reduces bias but also can prevent producing infinite value. Furthermore, we propose a method to calculate the standard error of the resultant estimator. A...

  14. Running Boundary Condition

    E-Print Network [OSTI]

    Satoshi Ohya; Makoto Sakamoto; Motoi Tachibana

    2013-01-28T23:59:59.000Z

    In this paper we argue that boundary condition may run with energy scale. As an illustrative example, we consider one-dimensional quantum mechanics for a spinless particle that freely propagates in the bulk yet interacts only at the origin. In this setting we find the renormalization group flow of U(2) family of boundary conditions exactly. We show that the well-known scale-independent subfamily of boundary conditions are realized as fixed points. We also discuss the duality between two distinct boundary conditions from the renormalization group point of view. Generalizations to conformal mechanics and quantum graph are also discussed.

  15. On Estimating Conditional Conservatism

    E-Print Network [OSTI]

    Ball, Ray

    The concept of conditional conservatism (asymmetric earnings timeliness) has provided new insight into financial reporting and stimulated considerable research since Basu (1997). Patatoukas and Thomas (2011) report bias ...

  16. LED Traffic Light as a Communications Device Grantham Pang, Thomas Kwan, Chi-Ho Chan, Hugh Liu.

    E-Print Network [OSTI]

    Pang, Grantham

    :http://www.eee.hku.hk/~gpang Abstract The visible light from an LED (light emitting diode) traffic light can be modulated and encoded on the description of an audio information system made up of high brightness, visible light emitting diodes (LEDs messages 1. Introduction Recently, high intensity light emitting diodes for traffic signals are available

  17. Detecting Anomalies in Network Traffic Using Maximum Entropy Estimation Yu Gu, Andrew McCallum, Don Towsley

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    the network administrator a multi­ dimensional view of the network traffic. Our method can detect anomalies classes that increase the relative entropy thus providing the network administrator information related1 Detecting Anomalies in Network Traffic Using Maximum Entropy Estimation Yu Gu, Andrew Mc

  18. Traffic Generation of IEC 61850 Sampled Values Jakub W. Konka, Colin M. Arthur, Francisco J. Garcia and Robert C. Atkinson

    E-Print Network [OSTI]

    Atkinson, Robert C

    Traffic Generation of IEC 61850 Sampled Values Jakub W. Konka, Colin M. Arthur, Francisco J. Garcia or emulate his ideas are paramount. Within this scope, a traffic generation system has been developed for IEC transmission systems to Smart Grids [2]. One such example is the international standard IEC 61850. Originally

  19. Traffic-Thermal Mutual-Coupling Co-Simulation Platform for Three-Dimensional Network-on-Chip

    E-Print Network [OSTI]

    Hung, Shih-Hao

    of network traffic, power, temperature, and thermal management is shown in Fig. 1(b). During simulation power consumption of the NoC system, which is a power trace. The thermal model calculates the temperature profile by the given power trace. The thermal management regulates the network traffic based

  20. Examining the Generalized Waring Model for the Analysis of Traffic Crashes

    E-Print Network [OSTI]

    Peng, Yichuan

    2013-05-03T23:59:59.000Z

    characterized by heavy long tail (Guo and Trivedi, 2002). Third, many empirical crash data exhibit more zero observations than would be allowed by a NB regression model, which causes the low mean issue of traffic crash datasets. It is often difficult.... This kind of model has been extensively used in many areas (e.g. Ramaswamy et al., 1994; Wang et al., 1998; Guo & Trivedi, 2002)and has been proposed and applied in the traffic safety context recently (Park & Lord, 2010). The general model structure of a...

  1. 2007 IEEE International Conference on Signal Processing and Communications (ICSPC 2007), 24-27 November 2007, Dubai, United Arab Emirates A MODLE FOR CONTROLLED VBR VIDEO TRAFFIC

    E-Print Network [OSTI]

    Gabbouj, Moncef

    -27 November 2007, Dubai, United Arab Emirates A MODLE FOR CONTROLLED VBR VIDEO TRAFFIC Mehdi Rezaei, 2Imed

  2. Checklist of Successful Health Plan Approaches to Heart Disease and Stroke Prevention

    E-Print Network [OSTI]

    Checklist of Successful Health Plan Approaches to Heart Disease and Stroke Prevention Yes at risk for heart disease, stroke, and related conditions and risk factors (e.g., routine screenings the health plan offer specialized disease management programs for members who have been diagnosed with heart

  3. Communitywide strategies key to preventing childhood obesity

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    livers=1. Berenson GS. 2005. Obesity – A critical issue inAccelerat- ing Progress in Obesity Prevention Solving thein US childhood obesity, 2001-2007. Ann Epidemiol 20(1):40–

  4. Managing preventative maintenance activities at Intel Corporation

    E-Print Network [OSTI]

    Fearing, Rebecca Cassler

    2006-01-01T23:59:59.000Z

    The work for this thesis was completed at Intel Corporation in Colorado Springs, Colorado at Fab 23, a semiconductor fabrication facility making flash memory. The project focused on evaluating and managing preventative ...

  5. Traffic Management Policy and Guidelines v. 1.0 Page 1 of 4 This document is the property of the University of Canterbury.

    E-Print Network [OSTI]

    Hickman, Mark

    -323 ______________________________________________________________________________________ Traffic Management Policy and Guidelines v. 1.0 Page 1 of 4 © This document is the property (COPTTM) ­ document created by NZ Transport Agency which lays out the temporary traffic management-323 ______________________________________________________________________________________ Traffic Management Policy and Guidelines v. 1.0 Page 2 of 4 © This document is the property

  6. Model development for household waste prevention behaviour

    SciTech Connect (OSTI)

    Bortoleto, Ana Paula, E-mail: a.bortoleto@sheffield.ac.uk [Department of Urban Engineering, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan); Kurisu, Kiyo H.; Hanaki, Keisuke [Department of Urban Engineering, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan)

    2012-12-15T23:59:59.000Z

    Highlights: Black-Right-Pointing-Pointer We model waste prevention behaviour using structure equation modelling. Black-Right-Pointing-Pointer We merge attitude-behaviour theories with wider models from environmental psychology. Black-Right-Pointing-Pointer Personal norms and perceived behaviour control are the main behaviour predictors. Black-Right-Pointing-Pointer Environmental concern, moral obligation and inconvenience are the main influence on the behaviour. Black-Right-Pointing-Pointer Waste prevention and recycling are different dimensions of waste management behaviour. - Abstract: Understanding waste prevention behaviour (WPB) could enable local governments and decision makers to design more-effective policies for reducing the amount of waste that is generated. By merging well-known attitude-behaviour theories with elements from wider models from environmental psychology, an extensive cognitive framework that provides new and valuable insights is developed for understanding the involvement of individuals in waste prevention. The results confirm the usefulness of the theory of planned behaviour and of Schwartz's altruistic behaviour model as bases for modelling participation in waste prevention. A more elaborate integrated model of prevention was shown to be necessary for the complete analysis of attitudinal aspects associated with waste prevention. A postal survey of 158 respondents provided empirical support for eight of 12 hypotheses. The proposed structural equation indicates that personal norms and perceived behaviour control are the main predictors and that, unlike the case of recycling, subjective norms have a weak influence on WPB. It also suggests that, since social norms have not presented a direct influence, WPB is likely to be influenced by a concern for the environment and the community as well by perceptions of moral obligation and inconvenience. Results also proved that recycling and waste prevention represent different dimensions of waste management behaviour requiring particular approaches to increase individuals' engagement in future policies.

  7. Thermography for Preventive Maintenance and Conservation

    E-Print Network [OSTI]

    Lopez, T.

    1979-01-01T23:59:59.000Z

    THERMOGRAPHY FOR PREVENTIVE MAINTENANCE AND CONSERVATION Tony Lopez Southern California Gas Company Los Angles, California The Supply Situation With fuel prices soaring, more and more companies are looking at energy management as a means... years. In the last twenty years, however, other applica tions have been developed for thermography. Some of these include: medicine, nondestructive testi:ng, aerial land mapping, preventive maintenance and conservation. The balance of this paper...

  8. Optimal Joint Preventive Maintenance and Production Policies* Xiaodong Yao

    E-Print Network [OSTI]

    Marcus, Steven I.

    Optimal Joint Preventive Maintenance and Production Policies* Xiaodong Yao SAS Institute Inc. Cary preventive maintenance (PM) and production policies for an unreliable production-inventory system in which to establish some additional structural properties. Keywords: optimal preventive maintenance, joint maintenance

  9. Bounds on the Minimum Energy-Per-Bit for Bursty Traffic in Diamond Networks

    E-Print Network [OSTI]

    Danforth, Bryan Nicholas

    , these studies lack a fundamental characterization of the energy and bandwidth costs of synchronization. Early work on the fundamental limits of asynchronous communication involved characterizing the data rates are often battery-operated. Thus, in the case of short and sporadic transmissions, i.e., bursty traffic

  10. Screen-Off Traffic Characterization and Optimization in 3G/4G Networks

    E-Print Network [OSTI]

    Mao, Zhuoqing Morley

    Screen-Off Traffic Characterization and Optimization in 3G/4G Networks Junxian Huang University resource constraints: limited frequency spectrum, network processing capability, and hand- set battery life. Copyright 2012 ACM 978-1-4503-1705-4/12/11 ...$15.00. kinds. Cellular networks are typically characterized

  11. Scheduling and NoC Traffic Reduction in T-SDF Architecture

    E-Print Network [OSTI]

    Giorgi, Roberto

    Scheduling and NoC Traffic Reduction in T-SDF Architecture Roberto Giorgi, Nikola Puzovic1 Dept a multiprocessor on chip architecture based on SDF architecture, by placing multiple processing cores on a single 1 Introduction Our research is focused on expanding SDF architecture [1][2] by placing more than one

  12. On the Feasibility of UMTS-based Traffic Information Systems Christoph Sommer,a

    E-Print Network [OSTI]

    Breu, Ruth

    On the Feasibility of UMTS-based Traffic Information Systems Christoph Sommer,a , Armin Schmidtb. Tel.: +49 9131 85-27993, Fax: -27409 Email addresses: christoph.sommer@informatik.uni-erlangen.de (Christoph Sommer), aschmidt@lnt.de (Armin Schmidt), chenyi@comnets.uni-bremen.de (Yi Chen), german

  13. Beijing Traffic Jam Daniel Barry, Jennifer Corriveau, Michael Lecomte, Johanna Zuber

    E-Print Network [OSTI]

    Nagurney, Anna

    that railway would be the most efficient and environmentally friendly way for energy transportation" · 42,000km; efficient; high capacity · Can reduce up to 25-30% of traffic jams · Safety precautions #12;Solution: Energy, construction · Solutions: Railroad, Straddle bus, Transport energy #12;Questions? · Thank you! #12;

  14. Danijela Bari University of Zagreb, Faculty of Transport and Traffic Sciences, Zagreb, Croatia

    E-Print Network [OSTI]

    Illinois at Urbana-Champaign, University of

    Danijela Bari University of Zagreb, Faculty of Transport and Traffic Sciences, Zagreb, Croatia Sanja Pai HZ Infrastructure L.L., Zagreb, Croatia THE POSITIVE EFFECTS OF THE SAFETY PROGRAM "TRAIN IS ALWAYS FASTER" #12;CONTENT - Introduction - Croatian railways network - Safety on LC in Croatia - Program

  15. Optimal Traffic-Oblivious Energy-Aware Routing For Multihop Wireless Networks

    E-Print Network [OSTI]

    Holte, Robert

    constraints. If the power supply is renewable, it is desirable that the energy consumption rate is less than the renewal rate. Lin et al. [15] study power-aware routing with renewable energy sources. Some previous workOptimal Traffic-Oblivious Energy-Aware Routing For Multihop Wireless Networks Yuxi Li Janelle Harms

  16. Real-Time Queues in Heavy Traffic with Earliest-Deadline-First Queue Discipline

    E-Print Network [OSTI]

    systems also control much of modern tech- nology, for example engines and braking systems in automobiles, all avionic systems (including air traffic control) and all aspects of modern manufactur- ing facilities. Computerized control systems must receive and react to state information within a fixed, often

  17. Multi-step-ahead prediction of MPEG-coded video source traffic using empirical modeling techniques

    E-Print Network [OSTI]

    Gupta, Deepanker

    2006-04-12T23:59:59.000Z

    In the near future, multimedia will form the majority of Internet traffic and the most popular standard used to transport and view video is MPEG. The MPEG media content data is in the form of a time-series representing frame/VOP sizes. This time...

  18. Low-Power and Error Coding for Network-on-Chip Traffic

    E-Print Network [OSTI]

    Jantsch, Axel

    frameworks of simulation perform- ance and power estimation, Section 4 presents the setup for simulation and tele- communication systems. There are several works, describing methods to esti- mate powerLow-Power and Error Coding for Network-on-Chip Traffic Arseni Vitkovski, Raimo Haukilahti, Axel

  19. Assessing the impacts of military vehicle traffic on natural areas. Introduction to the special

    E-Print Network [OSTI]

    Fehmi, Jeffrey S.

    Assessing the impacts of military vehicle traffic on natural areas. Introduction to the special issue and review of the relevant military vehicle impact literature Alan B. Anderson a,*, Antonio J, and the International Society for Terrain-Vehicle Systems cosponsored a symposium titled ``Assessing the Impacts

  20. Greenhouse Gas Pollution in the Stratosphere Due to Increasing Airplane Traffic, Effects On the Environment

    E-Print Network [OSTI]

    Murty, Katta G.

    Greenhouse Gas Pollution in the Stratosphere Due to Increasing Airplane Traffic, Effects On the Environment Katta G. Murty Department of Industrial and Operations Engineering University of Michigan, Ann to tremendous increases in the construction of huge airport facilities, the development of large jumbo

  1. Avoiding the Rush Hours: WiFi Energy Management via Traffic Isolation

    E-Print Network [OSTI]

    Shihada, Basem

    Avoiding the Rush Hours: WiFi Energy Management via Traffic Isolation Justin Manweiler Duke.rc@duke.edu ABSTRACT WiFi continues to be a prime source of energy consumption in mobile devices. This paper observes that, despite a rich body of research in WiFi energy management, there is room for improvement. Our key

  2. SCANNING FOR VISUAL TRAFFIC: AN EYE TRACKING STUDY Kurt Colvin1

    E-Print Network [OSTI]

    1 SCANNING FOR VISUAL TRAFFIC: AN EYE TRACKING STUDY Kurt Colvin1 , Rahul M. Dodhia2,3 , Sean) visual scanning pattern for pilots to see and avoid other aircraft. Little research has been published on how effectively pilots actually scan. In our study, pilots fly VFR scenarios in a general aviation

  3. Spatial and Temporal Patterns in Large-Scale Traffic Speed Prediction

    E-Print Network [OSTI]

    Jaillet, Patrick

    , such as k-means clustering, Principal Component Analysis (PCA), and Self Organizing Maps (SOM) to mine, they developed a custom model for the test area, which is not available. This limits any meaningful comparison will also consider road category wise comparison as one of the indices for performance evaluation. Traffic

  4. Traffic Impact Study for UMore Park Sand and Gravel Resources Project

    E-Print Network [OSTI]

    Netoff, Theoden

    Traffic Impact Study for UMore Park Sand and Gravel Resources Project DRAFT City of Rosemount Impact Study for UMore Park Sand and Gravel Resources Project City of Rosemount and Empire Township Figure 13 Existing Lane Geometry and Intersection Control Figure 14 Mitigation Measures for 2011 and 2030

  5. LRRB Pavement Management SystemsTraffic Generator Managing Interaction Between Local

    E-Print Network [OSTI]

    Minnesota, University of

    LRRB Pavement Management SystemsTraffic Generator Managing Interaction Between Local Authorities Research Board May 24, 2011 22nd Annual Transportation Research Conference #12;LRRB Pavement ManagementSCU, Consultants, etc. · Administered by Mn/DOT Research Services LRRB Funding #12;LRRB Pavement Management Systems

  6. PAVEMENT PREDICTION PERFORMANCE MODELS AND RELATION WITH TRAFFIC FATALITIES AND INJURIES

    E-Print Network [OSTI]

    Boyer, Edmond

    PAVEMENT PREDICTION PERFORMANCE MODELS AND RELATION WITH TRAFFIC FATALITIES AND INJURIES V. CEREZO.gothie@developpement-durable.gouv.fr ABSTRACT This paper presents some results of a study, which aimed at modelling pavement evolution, pavement characteristics and age. In a second part, non-linear regressions were used in view of obtaining

  7. Influence of vehide traffic reduction in a town centre on BTX polhition Isabelle ZDANEVITCH a

    E-Print Network [OSTI]

    Boyer, Edmond

    et Pollution de l'Air", Avignon : France (2000)" #12;1. Objectives It seems obvious that with limited centres. According to that scheine, WERIS, m association wifh the local Air Qualily Moniforing Nefwork A1 clearly indicates traffic äs the main source of atmospheric pollution. Measured benzene levels over the 3

  8. Improvement of the Road Traffic Management by an Ant-Hierarchical Fuzzy System

    E-Print Network [OSTI]

    Casillas Barranquero, Jorge

    of an adaptive vehicle guidance system. The proposed method is implemented as a deliberative module of a vehicle quality in terms of time, fluidity, and adaptability. Index Terms--transportation, adaptive vehicle of ITS are the vehicle guidance [1], the optimization of the road traffic flow [2], the manage- ment

  9. Comparisons of Air Traffic Control Implementations on an Associative Processor with a MIMD and

    E-Print Network [OSTI]

    be completed in time to meet their individual deadlines. The Federal Aviation Administration (FAA) has put Aviation Administration (FAA), Multiprocessor, NP-complete 1. Introduction The Air Traffic Control (ATC&R), ClearSpeed CSX600, Multicore Processor, OpenMP, Predictability, Worst Case Execution Time, Federal

  10. The Federal Aviation Administration (FAA) estimates that 70% of air traffic

    E-Print Network [OSTI]

    Reuter, Martin

    The Federal Aviation Administration (FAA) estimates that 70% of air traffic delays result from by the Port Authority of New York and New Jersey, and the FAA in 2007 established a program to field on by thunderstorms. The FAA estimates that one-third of all commercial airline flights daily pass through the New

  11. DOT/FAA/AR-08/37,P1 Air Traffic Organization

    E-Print Network [OSTI]

    Mobasher, Barzin

    as to its use. This report is available at the Federal Aviation Administration William J. Hughes Technical Name and Address U.S. Department of Transportation Federal Aviation Administration Air Traffic The Federal Aviation Administration Airport and Aircraft Safety R&D Division COTR was Donald Altobelli. 16

  12. An analysis of the multiple paths used in traffic assignment algorithms

    E-Print Network [OSTI]

    Butorac, Julia Ann Kuhn

    1997-01-01T23:59:59.000Z

    require the analysis of route-based metrics in addition to roadway volumes. The traffic assignment techniques typically used in planning models are link-based and do not explicitly enumerate or evaluate routes. To date, no research has been conducted...

  13. Performance Evaluation of Adaptive Ramp-Metering Algorithms Using Microscopic Traffic Simulation Model

    E-Print Network [OSTI]

    Levinson, David M.

    in the vicinity of the ramp. Examples of local traffic-responsive control are demand capacity, occupancy control and potential effectiveness of such algorithms depend on a number of complex factors that are best investigated-metering policies, implementations based on such develop- ments have been slow in coming. In practice, modes

  14. Development and implementation of algorithms used in ground and internet traffic monitoring 

    E-Print Network [OSTI]

    Ametha, Jayesh

    2001-01-01T23:59:59.000Z

    . The development and real-time implementation of a new algorithm that filters out erroneous data from the ILDs is the focus of the first half of this thesis. The developed algorithm is based solely on vehicle kinematics and is implemented in real-time. Traffic data...

  15. Facilitation of visual pattern recognition by extraction of relevant features from microscopic traffic data 

    E-Print Network [OSTI]

    Fields, Matthew James

    2008-10-10T23:59:59.000Z

    feature space; this is done to minimize the experimental set to a matrix of desirable attributes from the vehicles on the roadway. The application is to identify if this data can be readily parsed into four distinct traffic states; in this case, the state...

  16. Facilitation of visual pattern recognition by extraction of relevant features from microscopic traffic data 

    E-Print Network [OSTI]

    Fields, Matthew James

    2009-05-15T23:59:59.000Z

    feature space; this is done to minimize the experimental set to a matrix of desirable attributes from the vehicles on the roadway. The application is to identify if this data can be readily parsed into four distinct traffic states; in this case, the state...

  17. Stochasticity and traffic jams in the transcription of ribosomal RNA: Intriguing role of termination and antitermination

    E-Print Network [OSTI]

    Stefan Klumpp; Terence Hwa

    2008-11-19T23:59:59.000Z

    In fast growing bacteria, ribosomal RNA (rRNA) is required to be transcribed at very high rates to sustain the high cellular demand on ribosome synthesis. This results in dense traffic of RNA polymerases (RNAP). We developed a stochastic model, integrating results of single-molecule and quantitative in vivo studies of E. coli, to evaluate the quantitative effect of pausing, termination, and antitermination on rRNA transcription. Our calculations reveal that in dense RNAP traffic, spontaneous pausing of RNAP can lead to severe "traffic jams", as manifested in the broad distribution of inter-RNAP distances and can be a major factor limiting transcription and hence growth. Our results suggest the suppression of these pauses by the ribosomal antitermination complex to be essential at fast growth. Moreover, unsuppressed pausing by even a few non-antiterminated RNAPs can already reduce transcription drastically under dense traffic. However, the termination factor Rho can remove the non-antiterminated RNAPs and restore fast transcription. The results thus suggest an intriguing role by Rho to enhance rather than attenuate rRNA transcription.

  18. CARSystem: a distributed algorithm for efficient real-time vehicular traffic control

    E-Print Network [OSTI]

    Koothrappally, Joseph

    1997-01-01T23:59:59.000Z

    transfer between individual traffic control processes. Real-time information -obtained by tracking the density profiles that constitute demand at each intersection in real-time-is used by an on-line optimization algorithm to provide real-time adaptive...

  19. Exploration of Weather Impacts on Freeway Traffic Operations and Safety Using High-Resolution Weather Data

    E-Print Network [OSTI]

    Bertini, Robert L.

    Exploration of Weather Impacts on Freeway Traffic Operations and Safety Using High-Resolution Weather Data by Chengyu Dai A thesis submitted in partial fulfillment of the requirements for the degree Moradkhani Kristin Tufte Portland State University ©2011 #12;i ABSTRACT Adverse weather is considered as one

  20. Abstract --The microscopic simulation is getting increasingly common in traffic planning and research because

    E-Print Network [OSTI]

    Thawonmas, Ruck

    an automated environment that handles all the necessary operations. The system organizes the files, executes involves more inherent fluctuations and variation of the vehicle dynamics, thus increasing the model automation. II. THE SIMULATION MODEL The HUTSIM urban traffic simulation system is an object-oriented micro

  1. Traffic Shaping to Reduce Jitter in Controller Area Network (CAN) Robert I. Davis

    E-Print Network [OSTI]

    Navet, Nicolas

    Traffic Shaping to Reduce Jitter in Controller Area Network (CAN) Robert I. Davis Real-Time Systems in the response time of the message on the source network typically translates into queuing jitter on the destination network. This jitter inheritance accumulates across each gateway and can significantly impact

  2. Self-sustained nonlinear waves in traffic flow M. R. Flynn,1

    E-Print Network [OSTI]

    Flynn, Morris R.

    by considering examples of traffic flow on open and closed roadways. DOI: 10.1103/PhysRevE.79.056113 PACS number-Whitham model on ei- ther an infinite roadway or, as with the recent physical ex- periment conducted by Sugiyama

  3. Prediction Aggregation of Remote Traffic Microwave Sensors Speed and Volume Data

    E-Print Network [OSTI]

    Havlicek, Joebob

    Prediction Aggregation of Remote Traffic Microwave Sensors Speed and Volume Data John R. Junger prediction is an important component of well developed Intelligent Trans- portation Systems and Advanced significant challenges to integrating polled data into such a predictive system. To overcome these, we present

  4. An Energy Aware Admission Control With Traffic Class Differentiation: From Theory to NS-2 Simulation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    An Energy Aware Admission Control With Traffic Class Differentiation: From Theory to NS-2 for computer networks is called green networking. The proposed paper aims to de- velop and test an energy-aware solution. EAAC-MQ, an Energy-Aware Admission Control for wired networks, has been created and tested

  5. JAMAR TRAX RD The TRAX RD is an automatic traffic recorder designed and built by JAMAR

    E-Print Network [OSTI]

    Prevedouros, Panos D.

    lead gel battery. Our unit also included the optional solar panel. When the unit on is turned on Technologies, Inc. Since the unit is a "Raw Data" unit, it records a time stamp of every sensor hit that occurs during the period of data collection. This unit works using air switches and road tubes to sense traffic

  6. Development and implementation of algorithms used in ground and internet traffic monitoring

    E-Print Network [OSTI]

    Ametha, Jayesh

    2001-01-01T23:59:59.000Z

    . The development and real-time implementation of a new algorithm that filters out erroneous data from the ILDs is the focus of the first half of this thesis. The developed algorithm is based solely on vehicle kinematics and is implemented in real-time. Traffic data...

  7. Facilitation of visual pattern recognition by extraction of relevant features from microscopic traffic data

    E-Print Network [OSTI]

    Fields, Matthew James

    2009-05-15T23:59:59.000Z

    feature space; this is done to minimize the experimental set to a matrix of desirable attributes from the vehicles on the roadway. The application is to identify if this data can be readily parsed into four distinct traffic states; in this case, the state...

  8. A New Approach To Robust Non-Intrusive Traffic Detection at Intersections!

    E-Print Network [OSTI]

    Minnesota, University of

    A New Approach To Robust Non-Intrusive Traffic Detection at Intersections! Chad Stelzig ­ Algorithm Solutions! Background and Terminology !! § "Non-Intrusive Detection Systems"! § Above ground detection accuracy with a non- intrusive system! #12;Global Solutions! Single Sensor Detection Systems! § Any

  9. Delay stability of back-pressure policies in the presence of heavy-tailed traffic

    E-Print Network [OSTI]

    Markakis, Mihalis G.

    We study scheduling and routing problems that arise in multi-hop wireline networks with a mix of heavy-tailed and light-tailed traffic. We analyze the delay performance of the widely studied class of Back-Pressure policies, ...

  10. SIGNIFICANCE OF TRAFFIC PRODUCED TURBULENCE FOR URBAN DISPERSION MODELING Petra Kastner-Klein

    E-Print Network [OSTI]

    Fedorovich, Evgeni

    in reducing tail-pipe emissions, urban air pollution caused by mobile sources is still a major problem released inside the urban canopy. The street ventilation is then controlled by the interaction between buoyancy-related and traffic-induced air motions are secondary street-ventilation mechanisms compared

  11. A GIS-based Bayesian approach for analyzing spatial-temporal patterns of traffic crashes

    E-Print Network [OSTI]

    Li, Linhua

    2009-06-02T23:59:59.000Z

    This thesis develops a GIS-based Bayesian approach for area-wide traffic crash analysis. Five years of crash data from Houston, Texas, are analyzed using a geographic information system (GIS), and spatial-temporal patterns of relative crash risk...

  12. Combined Intra- and Inter-domain Traffic Engineering using Hot-Potato Aware Link Weights Optimization

    E-Print Network [OSTI]

    Balon, Simon

    2008-01-01T23:59:59.000Z

    A well-known approach to intradomain traffic engineering consists in finding the set of link weights that minimizes a network-wide objective function for a given intradomain traffic matrix. This approach is inadequate because it ignores a potential impact on interdomain routing. Indeed, the resulting set of link weights may trigger BGP to change the BGP next hop for some destination prefixes, to enforce hot-potato routing policies. In turn, this results in changes in the intradomain traffic matrix that have not been anticipated by the link weights optimizer, possibly leading to degraded network performance. We propose a BGP-aware link weights optimization method that takes these effects into account, and even turns them into an advantage. This method uses the interdomain traffic matrix and other available BGP data, to extend the intradomain topology with external virtual nodes and links, on which all the well-tuned heuristics of a classical link weights optimizer can be applied. A key innovative asset of our ...

  13. Conditional data watchpoint management

    DOE Patents [OSTI]

    Burdick, Dean Joseph (Austin, TX); Vaidyanathan, Basu (Austin, TX)

    2010-08-24T23:59:59.000Z

    A method, system and computer program product for managing a conditional data watchpoint in a set of instructions being traced is shown in accordance with illustrative embodiments. In one particular embodiment, the method comprises initializing a conditional data watchpoint and determining the watchpoint has been encountered. Upon that determination, examining a current instruction context associated with the encountered watchpoint prior to completion of the current instruction execution, further determining a first action responsive to a positive context examination; otherwise, determining a second action.

  14. Valve performance concept move from preventive to condition-oriented maintenance

    SciTech Connect (OSTI)

    Zanner, G.; Kradepohl, P.

    1996-12-01T23:59:59.000Z

    As a turnkey supplier of nuclear and fossil power plants, Siemens must pay attention in concentrating, maintaining, and developing the expertise in many areas such as system design, components, materials, quality assurance, and qualification testing within centralized organizations. In the company segment VALVES, Siemens/KWU is staffed with experienced professionals who have serviced the power plant industry for about 25 years. The valve engineers deal with all kinds of valve and actuator-related activities like design ratings, development, qualifications, and ongoing improvements. In this regard, the engineers are involved in nearly all actual problems and suggested solutions through continuing dialogues with utilities, authorities, and vendors of valves and actuators.

  15. activation prevents behavioral: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3 Preventing Exclusion at the Bottleneck: Structural and Behavioral Approaches* Environmental Sciences and Ecology Websites Summary: to prevent such abuses.2 Similarly,...

  16. Preventing Food Contamination: A Need for Innovation in Food Production

    E-Print Network [OSTI]

    Reynolds, Mark

    2013-01-01T23:59:59.000Z

    174 Preventing Food Contamination A Need for Innovation infurther prevent microbial contamination. Due largely becausequick migration of the contamination in the example given

  17. Los Alamos National Laboratory employees receive Pollution Prevention...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Employees Receive Pollution Prevention Awards Los Alamos National Laboratory employees receive Pollution Prevention Awards Nearly 400 employees on 47 teams received Pollution...

  18. Phosphate-Containing Polyethylene Glycol Polymers Prevent Lethal...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Phosphate-Containing Polyethylene Glycol Polymers Prevent Lethal Sepsis by Multidrug-Resistant Pathogens. Phosphate-Containing Polyethylene Glycol Polymers Prevent Lethal Sepsis by...

  19. Waste Minimization and Pollution Prevention | Department of Energy

    Office of Environmental Management (EM)

    Waste Minimization and Pollution Prevention Waste Minimization and Pollution Prevention Mission The team supports efforts that promote a more sustainable environment and implements...

  20. Preventative Maintenance (PM) Policy Outline the policy regarding preventative vehicle maintenance on University of Michigan (U-

    E-Print Network [OSTI]

    Kirschner, Denise

    Preventative Maintenance (PM) Policy Objective Outline the policy regarding preventative vehicle maintenance on University of Michigan (U- M) vehicles. Policy 1. All maintenance performed on U-M vehicles their own campus maintenance facility to repair their fleet vehicles. 2. To ensure proper stewardship of U

  1. Mineralogy under extreme conditions

    SciTech Connect (OSTI)

    Shu, Jinfu (CIW)

    2012-02-07T23:59:59.000Z

    We have performed measurements of minerals based on the synchrotron source for single crystal and powder X-ray diffraction, inelastic scattering, spectroscopy and radiography by using diamond anvil cells. We investigated the properties of iron (Fe), iron-magnesium oxides (Fe, Mg)O, silica(SiO{sub 2}), iron-magnesium silicates (Fe, Mg)SiO{sub 3} under simulated high pressure-high temperature extreme conditions of the Earth's crust, upper mantle, low mantle, core-mantle boundary, outer core, and inner core. The results provide a new window on the investigation of the mineral properties at Earth's conditions.

  2. Preventive overhaul time for power transformers

    SciTech Connect (OSTI)

    Sarmadi, M. [Pennsylvania State Univ., University Park, PA (United States). Electrical Engineering Dept.; Rouhi, J. [Univ. of Mazandaran (Iran, Islamic Republic of); Fayyaz, A. [Mazandaran Power Co. (Iran, Islamic Republic of)

    1999-11-01T23:59:59.000Z

    Power transformers are the major piece of equipment in high-voltage substations. A considerable number of these transformers exist in Iran`s integrated network. Due to the climate diversity and improper usage, many of these transformers age rapidly, suffer failure and are taken out of service before half their useful life. At the present time the utility companies have no specific time-frame and plan for preventive overhaul. Detection of preventive overhaul time will increase the remaining life of transformers and improve the reliability of substations. An exact check of the remaining lifetime of transformers is not yet possible by available diagnostic techniques. In this paper, the authors present a method of identifying the right time for preventive overhaul in 63 kV power transformers. This method is developed based on 25 year transformer performance records in Northern Iran (subtropical climate) and with the utilization of studies done by electrical engineering communities world-wide.

  3. Waste minimization and pollution prevention awareness plan

    SciTech Connect (OSTI)

    Not Available

    1991-05-31T23:59:59.000Z

    The purpose of this plan is to document the Lawrence Livermore National Laboratory (LLNL) Waste Minimization and Pollution Prevention Awareness Program. The plan specifies those activities and methods that are or will be employed to reduce the quantity and toxicity of wastes generated at the site. The intent of this plan is to respond to and comply with (DOE's) policy and guidelines concerning the need for pollution prevention. The Plan is composed of a LLNL Waste Minimization and Pollution Prevention Awareness Program Plan and, as attachments, Program- and Department-specific waste minimization plans. This format reflects the fact that waste minimization is considered a line management responsibility and is to be addressed by each of the Programs and Departments. 14 refs.

  4. Changes in high cloud conditions

    E-Print Network [OSTI]

    Himebrook, Richard Frank

    1974-01-01T23:59:59.000Z

    ). When the effect of unknowns is added to the data (Figs. 3(a) and 3(b), p, 21), the period with most high-cloud cover seems to alter- nate back and forth almost monthly, The average, global, solar radiation (Fig. 3(c), p. 21) depicts a decrease from... radiation, per cent possible sunshine, and average sky cover. The increases in high-cloud cover occurred in areas with the following characteristics: strong upper-air flow; frequent jet ' aircraft traffic; coverage of less than half the sky; late...

  5. Incident Prevention, Warning, and Response (IPWAR) Manual

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2004-09-30T23:59:59.000Z

    This Manual defines a structured, cohesive, and consistent process for performing incident prevention, warning, and response for DOE's Federal information systems and is consistent with the requirements of Federal laws, Executive orders, national security directives, and other regulations. The Manual also provides requirements and implementation instructions for the Department's Incident Prevention, Warning and Response process, and supplements DOE O 205.1, Department of Energy Cyber Security Management Program, dated 3-21-03. DOE N 205.17 cancels this manual. This manual cancels DOE N 205.4, Handling Cyber Security Alerts and Advisories and Reporting Cyber Security Incidents, dated 3/18/2002.

  6. Modelling of dependence between critical failure and preventive maintenance

    E-Print Network [OSTI]

    Langseth, Helge

    Modelling of dependence between critical failure and preventive maintenance: The repair alert model, or a preventive maintenance (PM) action, where the latter will prevent the failure. It is reasonable to expect that the failure can be avoided by a possible preventive maintenance (PM) at some random time Z. If Z

  7. Modelling of dependence between critical failure and preventive maintenance

    E-Print Network [OSTI]

    Langseth, Helge

    Modelling of dependence between critical failure and preventive maintenance: The repair alert model, or a preventive maintenance (PM) action, where the latter will prevent the failure. It is reasonable to expect be avoided by a possible preventive maintenance (PM) at some random time Z. If Z

  8. 2300 SYSTEM Conditioning Amplifier

    E-Print Network [OSTI]

    Gellman, Andrew J.

    2300 SYSTEM Signal Conditioning Amplifier 2310 Instruction Manual Vishay Micro-Measurements P date of shipment. Coverage of computers, cameras, rechargeable batteries, and similar items, sold on non-rechargeable batteries and similar consumable items is limited to the delivery of goods free from

  9. Approaches for preventing and mitigating accidental gaseous chemical releases

    SciTech Connect (OSTI)

    Fthenakis, V.M.

    1996-12-31T23:59:59.000Z

    This paper presents a review of approaches to prevent and mitigate accidental releases of toxic and flammable gases. The prevention options are related to: choosing safer processes and materials, preventing initiating events, preventing or minimizing releases, and preventing human exposures. the mitigation options include: secondary confinement, de-inventory, vapor barriers, and water sprays/monitors. Guidelines for the design and operation of effective post-release mitigation systems are also presented.

  10. Traffic-related air pollution exposures and changes in heart rate variability in Mexico City: A panel study

    E-Print Network [OSTI]

    Shields, Kyra Naumoff

    Abstract Background While air pollution exposures have been linked to cardiovascular outcomes, the contribution from acute gas and particle traffic-related pollutants remains unclear. Using a panel study design with repeated ...

  11. Hierarchical Bayesian Nonparametric Approach to Modeling and Learning the Wisdom of Crowds of Urban Traffic Route Planning Agents

    E-Print Network [OSTI]

    Yu, Jiangbo

    Route prediction is important to analyzing and understanding the route patterns and behavior of traffic crowds. Its objective is to predict the most likely or "popular" route of road segments from a given point in a road ...

  12. Empirical Analysis of the Effects of Rain on Measured Freeway Traffic Parameters1 Meead Saberi K.4

    E-Print Network [OSTI]

    Bertini, Robert L.

    Empirical Analysis of the Effects of Rain on Measured Freeway Traffic Parameters1 2 3 Meead Saberi November 200954 55 Word Count: 7,456 (9 figures and 2 tables)56 #12;Saberi and Bertini 2 Abstract

  13. The use of a simple cellular automata model as a testbed for kinetic theories of vehicular traffic flow

    E-Print Network [OSTI]

    Raney, Bryan Keith

    2000-01-01T23:59:59.000Z

    The broad objective of this thesis is to explore the potential for the use of Cellular Automata (CA) models to provide a testbed for comparison of different kinetic models of vehicular traffic. We intend to develop a quantitative technique...

  14. Queue length asymptotics for generalized max-weight scheduling in the presence of heavy-tailed traffic

    E-Print Network [OSTI]

    Jagannathan

    We investigate the asymptotic behavior of the steady-state queue length distribution under generalized max-weight scheduling in the presence of heavy-tailed traffic. We consider a system consisting of two parallel queues, ...

  15. Marking Algorithms for Service Differentiation of TCP Traffic Technical Report: University of Virginia, CS-2003-04

    E-Print Network [OSTI]

    Sadeh, Norman M.

    Marking Algorithms for Service Differentiation of TCP Traffic Technical Report: University typically provide loss, throughput, and delay differentiation. However, proposals for class-based Qo of packet losses and achievable throughput. Ignoring this coupling may result in poor service

  16. WHEN DOES COMPROMISE PREVENT MORE POLLUTION?

    E-Print Network [OSTI]

    Ferrara, Mike

    WHEN DOES COMPROMISE PREVENT MORE POLLUTION? C. CLEMONS1, J. COSSEY2, M. FERRARA3, S. FORCEY4, T an industrial firm has the option of voluntar- ily controlling the pollutants it originates. A regu- lating agency sets the tax rate on corporate profits as well as a Pigouvian pollution tax: preset per- centages

  17. Guide to Preventing Computer Software Piracy

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2001-07-12T23:59:59.000Z

    Guide to Preventing Computer Software Piracy It is the intent of the Department of Energy (DOE) to issue guidance in accordance with Federal CIO Council recommendations and in compliance with Executive Order 13103. The guidance in this document is based on the CIO Council's recommendations in reference to computer software piracy, and applies to all DOE elements. Canceled by DOE N 205.18

  18. Workplace Violence Prevention Employee Awareness Class

    Broader source: Energy.gov [DOE]

    The Office of Health, Safety, and Security has been working to organize a Workplace Violence Prevention Program that includes dealing with the Active Shooter scenario. After the Navy Yard event, HSS has been trying to accelerate the roll out. Next week we start two-a-days for the Employee Awareness class, which is the first step in the program development and roll out.

  19. High voltage pulse conditioning

    DOE Patents [OSTI]

    Springfield, Ray M. (Sante Fe, NM); Wheat, Jr., Robert M. (Los Alamos, NM)

    1990-01-01T23:59:59.000Z

    Apparatus for conditioning high voltage pulses from particle accelerators in order to shorten the rise times of the pulses. Flashover switches in the cathode stalk of the transmission line hold off conduction for a determinable period of time, reflecting the early portion of the pulses. Diodes upstream of the switches divert energy into the magnetic and electrostatic storage of the capacitance and inductance inherent to the transmission line until the switches close.

  20. Fuel gas conditioning process

    DOE Patents [OSTI]

    Lokhandwala, Kaaeid A. (Union City, CA)

    2000-01-01T23:59:59.000Z

    A process for conditioning natural gas containing C.sub.3+ hydrocarbons and/or acid gas, so that it can be used as combustion fuel to run gas-powered equipment, including compressors, in the gas field or the gas processing plant. Compared with prior art processes, the invention creates lesser quantities of low-pressure gas per unit volume of fuel gas produced. Optionally, the process can also produce an NGL product.

  1. Non-linear Dynamics, Emergent Behaviors and Controlled Expansions: Towards Effective Modeling of the Congested Traffic

    E-Print Network [OSTI]

    Bo Yang; Xihua Xu; John Z. F. Pang; Christopher Monterola

    2015-04-06T23:59:59.000Z

    We propose a framework for constructing microscopic traffic models from microscopic acceleration patterns that can in principle be experimental measured and proper averaged. The exact model thus obtained can be used to justify the consistency of various popular models in the literature. Assuming analyticity of the exact model, we suggest that a controlled expansion around the constant velocity, uniform headway "ground state" is the proper way of constructing various different effective models. Assuming a unique ground state for any fixed average density, we discuss the universal properties of the resulting effective model, focusing on the emergent quantities of the coupled non-linear ODEs. These include the maximum and minimum headway that give the coexistence curve in the phase diagram, as well as an emergent intrinsic scale that characterizes the strength of interaction between clusters, leading to non-trivial cluster statistics when the unstable ground state is randomly perturbed. Utilizing the universal properties of the emergent quantities, a simple algorithm for constructing an effective traffic model is also presented. The algorithm tunes the model with statistically well-defined quantities extracted from the flow-density plot, and the resulting effective model naturally captures and predicts many quantitative and qualitative empirical features of the highway traffic, especially in the presence of an on-ramp bottleneck. The simplicity of the effective model provides strong evidence that stochasticity, diversity of vehicle types and modeling of complicated individual driving behaviors are \\emph{not} fundamental to many observations of the complex spatiotemporal patterns in the real traffic dynamics. We also propose the nature of the congested phase can be well characterized by the long lasting transient states of the effective model, from which the wide moving jams evolve.

  2. Models for estimation of car fuel consumption in urban traffic

    SciTech Connect (OSTI)

    Biggs, D.C.; Akcelik

    1986-07-01T23:59:59.000Z

    This article describes four fuel-consumption models. The models are interrelated and form part of the same modeling framework. A simpler model is derived from a more complicated model keeping the vehicle characteristic such as mass, drag function, and energy efficiency as explicit parameters at all model levels. Because vehicle characteristics are likely to change over time and from country to country, this is a particularly useful model property. For simplicity here, only the instantaneous fuel-consumption model is described in any detail. However, because of the derivation procedure, many of the features and properties of this model are present in the more aggregate models. Easy-to-use functions and graphs are given for the more aggregate models based on a ''default car'' in urban driving conditions. All parameters related to the speed profile and driving environment were calibrated using on-road data collected in Sydney, Australia. Use of the models is illustrated by estimating the fuel consumption for the microtrip.

  3. Conditions of Employment Modern Apprentice

    E-Print Network [OSTI]

    Strathclyde, University of

    Conditions of Employment Modern Apprentice 1. GENERAL CONDITIONS Members of staff are subject. Modern Apprentices are required under this agreement to undertake training, attend courses and carry out

  4. Optimal Preventive Maintenance Under Decision Dependent Uncertainty

    SciTech Connect (OSTI)

    Galenko, Alexander; Popova, Elmira [University of Texas at Austin, 1 University Station, Austin, Texas 78712 (United States); Kee, Ernie; Grantom, Rick [South Texas Project Nuclear Operating Company - STPNOC, P.O. Box 289, Wadsworth, Tx 77483 (United States)

    2006-07-01T23:59:59.000Z

    We analyze a system of N components with dependent failure times. The goal is to obtain the optimal block replacement interval (different for each component) over a finite horizon that minimizes the expected total maintenance cost. In addition, we allow each preventive maintenance action to change the future joint failure time distribution. We illustrate our methodology with an example from South Texas Project Nuclear Operating Company. (authors)

  5. Hanford Site pollution prevention progress report

    SciTech Connect (OSTI)

    BETSCH, M.D.

    1999-10-05T23:59:59.000Z

    The Richland Operations Office (RL) and Office of River Protection (ORP) are pleased to issue the attached Pollution Prevention Progress Report. We have just met the most aggressive waste reduction and A recycling goals to date and are publishing this report to recognize A the site's progress, and to ensure it will sustain success beyond 1 Fiscal Year 2000. This report was designed to inform the been made by RL and ORP in Waste Minimization (WMin) and Pollution Prevention (P2). RL, ORP and their contractors are committed to protecting the environment, and we reiterate pollution prevention should continue to be at the forefront of the environmental cleanup and research efforts. As you read the attached report, we believe you will see a clear demonstration of RL and ORP's outstanding performance as it has been responsible and accountable to the nation, its employees, and the community in which we live and work. commitment that all employees have for environmental stewardship. The report provides useful information about the U.S. Department of Energy's (DOE'S) environmental policy and programs, and contains countless examples of waste minimization projects. This year was the first year our site received the White House Closing the Circle in the category of Affirmative Procurement. This Award recognizes our site for designing a comprehensive strategy for achieving 100 percent purchases of the U.S.Environmenta1 Protection Agency designated recycled items. DOE-Headquarters also acknowledged the site in 1999 for its public outreach efforts in communicating pollution prevention to Hanford Site employees and the community. Our site is truly a recognized leader in outreach as it has kept this title for two consecutive years. In previous years, we received the White House Closing the Circle Honorable Mention in Affirmative Procurement and several other National DOE Awards. Through partnership with the local community and stakeholders, the site and its contractors have a clear sense of direction toward achieving environmental protection, cleanup, and research.

  6. The Cattle Tick: Biology, Preventive Measures. 

    E-Print Network [OSTI]

    Curtice, Cooper; Francis, M

    1892-01-01T23:59:59.000Z

    STAFF. ................ GEO. W. CURTIS, M. S. A. .Agriculturist. Director. .............................. H. H. HARRINGTON, M. SC. Chemist. .............................. M. FRANCIS, D. V. M.. .Veterinarian. ............................... R. H.... 31. Francis, Veterinarian of this Station, to find, if possible, some means of preventing the ravages of ticks which might be effectively used with economy and dispatch ancl thus be o'f practical benefit, not only to the small farmer who handles...

  7. Bio-Terrorism Threat and Casualty Prevention

    SciTech Connect (OSTI)

    NOEL,WILLIAM P.

    2000-01-01T23:59:59.000Z

    The bio-terrorism threat has become the ''poor man's'' nuclear weapon. The ease of manufacture and dissemination has allowed an organization with only rudimentary skills and equipment to pose a significant threat with high consequences. This report will analyze some of the most likely agents that would be used, the ease of manufacture, the ease of dissemination and what characteristics of the public health response that are particularly important to the successful characterization of a high consequence event to prevent excessive causalities.

  8. Conditional sterility in plants

    DOE Patents [OSTI]

    Meagher, Richard B. (Athens, GA); McKinney, Elizabeth (Athens, GA); Kim, Tehryung (Taejeon, KR)

    2010-02-23T23:59:59.000Z

    The present disclosure provides methods, recombinant DNA molecules, recombinant host cells containing the DNA molecules, and transgenic plant cells, plant tissue and plants which contain and express at least one antisense or interference RNA specific for a thiamine biosynthetic coding sequence or a thiamine binding protein or a thiamine-degrading protein, wherein the RNA or thiamine binding protein is expressed under the regulatory control of a transcription regulatory sequence which directs expression in male and/or female reproductive tissue. These transgenic plants are conditionally sterile; i.e., they are fertile only in the presence of exogenous thiamine. Such plants are especially appropriate for use in the seed industry or in the environment, for example, for use in revegetation of contaminated soils or phytoremediation, especially when those transgenic plants also contain and express one or more chimeric genes which confer resistance to contaminants.

  9. Initial Cladding Condition

    SciTech Connect (OSTI)

    E. Siegmann

    2000-08-22T23:59:59.000Z

    The purpose of this analysis is to describe the condition of commercial Zircaloy clad fuel as it is received at the Yucca Mountain Project (YMP) site. Most commercial nuclear fuel is encased in Zircaloy cladding. This analysis is developed to describe cladding degradation from the expected failure modes. This includes reactor operation impacts including incipient failures, potential degradation after reactor operation during spent fuel storage in pool and dry storage and impacts due to transportation. Degradation modes include cladding creep, and delayed hydride cracking during dry storage and transportation. Mechanical stresses from fuel handling and transportation vibrations are also included. This Analysis and Model Report (AMR) does not address any potential damage to assemblies that might occur at the YMP surface facilities. Ranges and uncertainties have been defined. This analysis will be the initial boundary condition for the analysis of cladding degradation inside the repository. In accordance with AP-2.13Q, ''Technical Product Development Planning'', a work plan (CRWMS M&O 2000c) was developed, issued, and utilized in the preparation of this document. There are constraints, caveats and limitations to this analysis. This cladding degradation analysis is based on commercial Pressurized Water Reactor (PWR) fuel with Zircaloy cladding but is applicable to Boiling Water Reactor (BWR) fuel. Reactor operating experience for both PWRs and BWRs is used to establish fuel reliability from reactor operation. It is limited to fuel exposed to normal operation and anticipated operational occurrences (i.e. events which are anticipated to occur within a reactor lifetime), and not to fuel that has been exposed to severe accidents. Fuel burnup projections have been limited to the current commercial reactor licensing environment with restrictions on fuel enrichment, oxide coating thickness and rod plenum pressures. The information provided in this analysis will be used in evaluating the post-closure performance of the Monitored Geologic Repository (MGR) in relation to waste form degradation.

  10. Vehicle Traffic Control Signal Heads— Light Emitting Diode Circular Signal Supplement (VTCSH-LED). This replaced the so-called Interim LED Purchase Specifications,

    E-Print Network [OSTI]

    S. Behura

    Engineers ’ (ITE) specification for light-emitting diode (LED) circular traffic signals recently was updated (June 27, 2005) and published under the name

  11. PREVENTING ABSENTEEISM AND PROMOTING RESILIENCE AMONG HEALTH CARE WORKERS IN

    E-Print Network [OSTI]

    PREVENTING ABSENTEEISM AND PROMOTING RESILIENCE AMONG HEALTH CARE WORKERS IN BIOLOGICAL Preventing Absenteeism and Promoting Resilience among Health Care Workers in Biological Emergencies A and Promoting Resilience among Health Care Workers in Biological Emergencies A. Lesperance J. Miller1 1

  12. An Intelligent Threat Prevention Framework with Heterogeneous Information

    E-Print Network [OSTI]

    Liu, Weiru

    An Intelligent Threat Prevention Framework with Heterogeneous Information Wenjun Ma 1 and Weiru Liu 1 Abstract. Three issues usually are associated with threat prevention intelligent surveillance, the de- mand of effectively predicting suspects' intention and ranking the potential threats posed

  13. 17.42 Causes and Prevention of War, Spring 2005

    E-Print Network [OSTI]

    Van Evera, Stephen

    The causes and prevention of interstate war are the central topics of this course. The course goal is to discover and assess the means to prevent or control war. Hence we focus on manipulable or controllable war-causes. ...

  14. Adaptive Rollover Prevention for Automotive Vehicles with Differential Braking

    E-Print Network [OSTI]

    Duffy, Ken

    Adaptive Rollover Prevention for Automotive Vehicles with Differential Braking Selim Solmaz, switching, and tuning (MMST) paradigm [13, 14, 15] for preventing un­tripped rollover in automotive vehicles performance than its fixed robust counterpart. Keywords: Automotive control; Multiple models; Parameter

  15. Energy Efficiency and Pollution Prevention: Industrial Efficiency Strategies 

    E-Print Network [OSTI]

    Pye, M.; Elliott, R. N.

    1998-01-01T23:59:59.000Z

    successfully combined energy efficiency and pollution prevention technologies and strategies to enhance the environment, productivity and the bottom line....

  16. NNSA Releases New Nuclear Prevent, Counter, and Respond Report...

    National Nuclear Security Administration (NNSA)

    Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure...

  17. air pollution prevention: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    environmental impacts. Perform solventless reactions. unknown authors 2 Prevention of Air Pollution from Ships: Diesel Engine Particulate Emission Reduction via...

  18. STRATEGIC REVIEW OF THE SEXUAL TRANSMISSION PREVENTION PROGRAM IN NIGERIA

    E-Print Network [OSTI]

    Klein, Ophir

    STRATEGIC REVIEW OF THE SEXUAL TRANSMISSION PREVENTION PROGRAM IN NIGERIA Data Analysis Prevention Technical Working Group (TWG) in Nigeria, in dialogue with the Office of the Global AIDS prevention program in Nigeria. Specifically, the following needs were agreed: to evaluate the effectiveness

  19. PHS 650, Fall 2011 1 PREVENTION OF OVERWEIGHT AND OBESITY

    E-Print Network [OSTI]

    Sheridan, Jennifer

    PHS 650, Fall 2011 1 PHS 650 PREVENTION OF OVERWEIGHT AND OBESITY Course Syllabus Fall 2011 Credits knowledge to develop, implement, and evaluate obesity prevention interventions. This course will emphasize pediatric obesity prevention with a focus on nutrition and physical activity health behaviors

  20. Workforce-Constrained Preventive Maintenance Scheduling using Evolution Strategies

    E-Print Network [OSTI]

    Terwilliger, Mark

    Workforce-Constrained Preventive Maintenance Scheduling using Evolution Strategies ABSTRACT Heavy of minimizing the makespan for a set of preventive maintenance (PM) tasks, requiring single- or multiple approach to the SA approach for this class of PM problems. Subject Area: Preventive Maintenance, Evolution

  1. Analysis of Preventive Maintenance in Transactions Based Software Systems

    E-Print Network [OSTI]

    Telek, Miklós

    Analysis of Preventive Maintenance in Transactions Based Software Systems Sachin Garg 1 , Antonio''. However, it incurs some overhead. The necessity to do preventive maintenance not only in general purpose to illustrate the usefulness and applicability of the models. Keywords: Preventive Maintenance, Transactions

  2. Combined Pollution Prevention Assessments 98-MP13B.02

    E-Print Network [OSTI]

    1 Combined Pollution Prevention Assessments 98-MP13B.02 Harry W. Edwards Department of Mechanical-97 Colorado State University Industrial Assessment Center (CSU IAC) combined pollution prevention assessments, pollution prevention, and productivity improvement. The total number of assessment recommendations is 176

  3. STORM WATER POLLUTION PREVENTION PLAN (RISK LEVEL 1)

    E-Print Network [OSTI]

    Eisen, Michael

    STORM WATER POLLUTION PREVENTION PLAN (RISK LEVEL 1) for BUILDING 90 USER TEST BED FACILITY.G., GEOLOGIST/QSD (530) 222-4339 SWPPP Preparation Date: JUNE 10, 2012 #12;Storm Water Pollution Prevention Plan) 222-4339 Name and Title Telephone Number #12;Storm Water Pollution Prevention Plan Building 90 User

  4. ACCIDENT PREVENTION SIGNS, TAGS, LABELS, SIGNALS, PIPING SYSTEM IDENTIFICATION AND

    E-Print Network [OSTI]

    US Army Corps of Engineers

    EM 385-1-1 XX Sep 13 i Section 8 ACCIDENT PREVENTION SIGNS, TAGS, LABELS, SIGNALS, PIPING SYSTEM............................................................8-13 Tables: 8-1 Accident Prevention Sign Requirements..........................8-17 8-2 Accident.......................................8-24 8-9 Accident Prevention Tags.............................................8-25 #12;EM 385-1-1 XX

  5. Semiclassical energy conditions and wormholes

    E-Print Network [OSTI]

    Prado Martin-Moruno

    2014-11-17T23:59:59.000Z

    We consider the nonlinear energy conditions and their quantum extensions. These new energy conditions behave much better than the usual pointwise energy conditions in the presence of semiclassical quantum effects. Analogous quantum extensions for the linear energy conditions are not always satisfied as one enters the quantum realm, but they can be used to constrain the violation of the classical conditions. Thus, the existence of wormholes supported by a fluid which violates the null energy condition in a controlled way is of particular interest.

  6. Influential Factors on Level of Injury in Pedestrian Crashes: Applications of Ordered Probit Model with Robust Standard Errors

    E-Print Network [OSTI]

    Jang, Kitae; Park, Shin Hyoung; Chung, Sungbong; Song, Ki Han

    2010-01-01T23:59:59.000Z

    time-series data, Accident Analysis and Prevention , 23, pp.in traffic crashes, Accident Analysis and Prevention , 39,in traffic crashes, Accident Analysis and Prevention, 40,

  7. Idaho National Laboratory Site Pollution Prevention Plan

    SciTech Connect (OSTI)

    E. D. Sellers

    2007-03-01T23:59:59.000Z

    It is the policy of the Department of Energy (DOE) that pollution prevention and sustainable environmental stewardship will be integrated into DOE operations as a good business practice to reduce environmental hazards, protect environmental resources, avoid pollution control costs, and improve operational efficiency and mission sustainability. In furtherance of this policy, DOE established five strategic, performance-based Pollution Prevention (P2) and Sustainable Environmental Stewardship goals and included them as an attachment to DOE O 450.1, Environmental Protection Program. These goals and accompanying strategies are to be implemented by DOE sites through the integration of Pollution Prevention into each site's Environmental Management System (EMS). This document presents a P2 and Sustainability Program and corresponding plan pursuant to DOE Order 450.1 and DOE O 435.1, Radioactive Waste Management. This plan is also required by the state of Idaho, pursuant to the Resource Conservation and Recovery Act (RCRA) partial permit. The objective of this document is to describe the Idaho National Laboratory (INL) Site P2 and Sustainability Program. The purpose of the program is to decrease the environmental footprint of the INL Site while providing enhanced support of its mission. The success of the program is dependent on financial and management support. The signatures on the previous page indicate INL, ICP, and AMWTP Contractor management support and dedication to the program. P2 requirements have been integrated into working procedures to ensure an effective EMS as part of an Integrated Safety Management System (ISMS). This plan focuses on programmatic functions which include environmentally preferable procurement, sustainable design, P2 and Sustainability awareness, waste generation and reduction, source reduction and recycling, energy management, and pollution prevention opportunity assessments. The INL Site P2 and Sustainability Program is administratively managed by the INL Site P2 Coordinator. Development and maintenance of this overall INL Site plan is ultimately the responsibility of DOE-ID. This plan is applicable to all INL Site contractors except those at the Naval Reactors Facility.

  8. Surface modification to prevent oxide scale spallation

    DOE Patents [OSTI]

    Stephens, Elizabeth V; Sun, Xin; Liu, Wenning; Stevenson, Jeffry W; Surdoval, Wayne; Khaleel, Mohammad A

    2013-07-16T23:59:59.000Z

    A surface modification to prevent oxide scale spallation is disclosed. The surface modification includes a ferritic stainless steel substrate having a modified surface. A cross-section of the modified surface exhibits a periodic morphology. The periodic morphology does not exceed a critical buckling length, which is equivalent to the length of a wave attribute observed in the cross section periodic morphology. The modified surface can be created using at least one of the following processes: shot peening, surface blasting and surface grinding. A coating can be applied to the modified surface.

  9. Facilitation of visual pattern recognition by extraction of relevant features from microscopic traffic data

    E-Print Network [OSTI]

    Fields, Matthew James

    2008-10-10T23:59:59.000Z

    . The tools created for this approach, a two-level hierarchical group of operators, are used to extract features from the dataset to create a feature space; this is done to minimize the experimental set to a matrix of desirable attributes from the vehicles... on the roadway. The application is to identify if this data can be readily parsed into four distinct traffic states; in this case, the state of a vehicle is defined by its velocity and acceleration at a selected timestamp. A three-dimensional plot is used...

  10. The temporal effect of traffic violations and accidents on accident occurrence

    E-Print Network [OSTI]

    McKemie, Martha Susan

    1979-01-01T23:59:59.000Z

    THE TEMPORAL EFFECT OF TRAFFIC VIOLATIONS AND ACCIDENTS ON ACCIDENT OCCURRENCE A Thesis by . 1artha Susan McKemie Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE December 1979 Major Subject: Industrial Engineering THE TEMPORAL El'FECT OF TRAI'FIC VIOIATIONS AND ACCIDENTS ON XCCIDENT OCCURPEENCE A Thesis by Martha Susan McKemie Approved as to style and content by: / ~J' (Chairman of Commi tee...

  11. Online Optimal Control of Connected Vehicles for Efficient Traffic Flow at Merging Roads

    SciTech Connect (OSTI)

    Rios-Torres, Jackeline [ORNL; Malikopoulos, Andreas [ORNL; Pisu, Pierluigi [Clemson University

    2015-01-01T23:59:59.000Z

    This paper addresses the problem of coordinating online connected vehicles at merging roads to achieve a smooth traffic flow without stop-and-go driving. We present a framework and a closed-form solution that optimize the acceleration profile of each vehicle in terms of fuel economy while avoiding collision with other vehicles at the merging zone. The proposed solution is validated through simulation and it is shown that coordination of connected vehicles can reduce significantly fuel consumption and travel time at merging roads.

  12. On the management of variable bit-rate traffic streams in packet-switched networks

    E-Print Network [OSTI]

    Yoo, Byeongki

    1998-01-01T23:59:59.000Z

    in GPS Example of GPS when 2Wt = Ws PGPS service sequence of the jobs in the arrival pattern of Fig. 1 . . 7 Example of VC Unfair behavior of VC 10 Arrival and service rates of Fig. 5 Unfair behavior of SCFQ 13 Concept of time window in grouping... the over-service flow 31 18 Snapshot of packet transmission in GSF 32 FIGURE Page 19 Comparison of arrival and transmission of flow 1 in GSF 33 20 21 Example of GOP in MPEG Functions for traffic smoothing 39 39 22 Autocorrelation of lecture...

  13. Condition Monitoring System for Reinforced

    E-Print Network [OSTI]

    Painter, Kevin

    containing dissolved ionic species such as chlorides. Since concrete is a porous material, with timeCondition Monitoring System for Reinforced Concrete Structures PROBLEM THIS TECHNOLOGY SOLVES: Patent pending concrete condition monitoring system providing `real-time' information on temperature

  14. When Does Aid Conditionality Work?

    E-Print Network [OSTI]

    Montinola, Gabriella R.

    2010-01-01T23:59:59.000Z

    2005, the Group of Eight (G8) nations committed to increaseprogram conditions. Given the G8 industrialized nations’

  15. Twilight for the energy conditions?

    E-Print Network [OSTI]

    Visser, Matt

    Twilight for the energy conditions? Matt Visser Physics Department Washington University Saint;#16;s (CAB, Madrid) Marcel Grossmann 9 Roma July 2000 #12; Abstract: The energy conditions of general relativity per- mit one to deduce very powerful and general theorems. However, the energy conditions are now

  16. TTProblem A Air Conditioning Machinery

    E-Print Network [OSTI]

    California at Berkeley, University of

    TTProblem A Air Conditioning Machinery Input file: ducts.in You are a technician for the Air Conditioning Machinery company (ACM). Unfortunately, when you arrive at a customer site to install some air conditioning ducts, you discover that you are running low on supplies. You have only six duct segments

  17. Energy conditions and their implications

    E-Print Network [OSTI]

    Visser, Matt

    Energy conditions and their implications Matt Visser Physics Department Washington University Saint;#16;s (Los Alamos) Midwest Relativity 9 November 1999. #12; Abstract: The energy conditions of general- itational #12;elds and cosmological geometries. However, the energy conditions are beginning to look a lot

  18. Queueing in Traffic Flows This project studies the effects of vehicle routing on pollution levels. We aim to develop queueing theory

    E-Print Network [OSTI]

    Boucherie, Richard J.

    model to predict air pollution in a wider region. These predictions will be tested using remote sensing forecast can then predict how air pollution is affected by this emission. Rerouting Alternative routing can reduce traffic jams and air pollution. Numereous options are available to reroute traffic flows, e

  19. Human-System Safety Methods for Development of Advanced Air Traffic Management Systems

    SciTech Connect (OSTI)

    Nelson, W.R.

    1999-05-24T23:59:59.000Z

    The Idaho National Engineering and Environmental Laboratory (INEEL) is supporting the National Aeronautics and Space Administration in the development of advanced air traffic management (ATM) systems as part of the Advanced Air Transportation Technologies program. As part of this program INEEL conducted a survey of human-system safety methods that have been applied to complex technical systems, to identify lessons learned from these applications and provide recommendations for the development of advanced ATM systems. The domains that were surveyed included offshore oil and gas, commercial nuclear power, commercial aviation, and military. The survey showed that widely different approaches are used in these industries, and that the methods used range from very high-level, qualitative approaches to very detailed quantitative methods such as human reliability analysis (HRA) and probabilistic safety assessment (PSA). In addition, the industries varied widely in how effectively they incorporate human-system safety assessment in the design, development, and testing of complex technical systems. In spite of the lack of uniformity in the approaches and methods used, it was found that methods are available that can be combined and adapted to support the development of advanced air traffic management systems.

  20. Chronic Beryllium Disease Prevention Program Report

    SciTech Connect (OSTI)

    Lee, S

    2012-03-29T23:59:59.000Z

    This document describes how Lawrence Livermore National Laboratory (LLNL) meets the requirements and management practices of federal regulation 10 CFR 850, 'Chronic Beryllium Disease Prevention Program (CBDPP).' This revision of the LLNL CBDPP incorporates clarification and editorial changes based on lessons learned from employee discussions, observations and reviews of Department of Energy (DOE) Complex and commercial industry beryllium (Be) safety programs. The information is used to strengthen beryllium safety practices at LLNL, particularly in the areas of: (1) Management of small parts and components; and (2) Communication of program status to employees. Future changes to LLNL beryllium activities and on-going operating experience will be incorporated into the program as described in Section S, 'Performance Feedback.'

  1. Determination of the Presence Conditions of Pavement Markings using Image Processing

    E-Print Network [OSTI]

    Ge, Hancheng

    2012-10-19T23:59:59.000Z

    Pavement markings, as a form of traffic control devices, play a crucial role in safely guiding drivers. Restriping pavement markings is an important task in the maintenance of traffic control devices. Every year state agencies spend a lot of money...

  2. Belief Revision through Forgetting Conditionals in Conditional Probabilistic Logic Programs

    E-Print Network [OSTI]

    Liu, Weiru

    of probabilistic belief revising, most research focuses on revising a single probabilistic distribution [5, 1, 8, 4Belief Revision through Forgetting Conditionals in Conditional Probabilistic Logic Programs Anbu Yue 1 and Weiru Liu 1 Abstract. In this paper, we present a revision strategy of revis- ing

  3. Hanford site waste minimization and pollution prevention awareness program

    SciTech Connect (OSTI)

    Kirkendall, J.R.

    1996-09-23T23:59:59.000Z

    This plan documents the requirements of the Hanford Site Waste Minimization/Pollution Prevention (WMin/P2) Program. The plan specifies requirements for Hanford contractors to prevent pollution from entering the environment, to conserve resources and energy, and to reduce the quantity and toxicity of hazardous, radioactive, mixed, and sanitary waste generated at Hanford. The Pollution Prevention Awareness Program required by DOE 5400.1 (DOE 1988A) is included in the Hanford WMin/P2 Program.

  4. Conditional entropy of ordinal patterns

    E-Print Network [OSTI]

    Anton M. Unakafov; Karsten Keller

    2014-07-21T23:59:59.000Z

    In this paper we investigate a quantity called conditional entropy of ordinal patterns, akin to the permutation entropy. The conditional entropy of ordinal patterns describes the average diversity of the ordinal patterns succeeding a given ordinal pattern. We observe that this quantity provides a good estimation of the Kolmogorov-Sinai entropy in many cases. In particular, the conditional entropy of ordinal patterns of a finite order coincides with the Kolmogorov-Sinai entropy for periodic dynamics and for Markov shifts over a binary alphabet. Finally, the conditional entropy of ordinal patterns is computationally simple and thus can be well applied to real-world data.

  5. Web-based Training for Development of Traffic Analysis Technical Skills SP&R, Part I Special Studies Request

    E-Print Network [OSTI]

    Detwiler, Russell

    ) to include system monitoring and evaluation, maintenance and preservation, transportation demand management regional/local partners that will provide a foundation for traffic analysis technical skills. The knowledge base will help managers and staff within our Department to make practical and realistic decisions

  6. Inhibition of Sodium/Proton Exchange by a Rab-GTPase-activating Protein Regulates Endosomal Traffic in Yeast*

    E-Print Network [OSTI]

    Rao, Rajini

    Inhibition of Sodium/Proton Exchange by a Rab-GTPase-activating Protein Regulates Endosomal Traffic- boxypeptidase Y to the cell surface. We conclude that Gyp6 is a negative regulator of Nhx1-dependent traffick and down- stream events in the PVC to Golgi pathway. Our findings provide a possible molecular link between

  7. The International Symposium on Transportation and Traffic Theory 00 (2013) 119 Linear-Quadratic Model Predictive Control

    E-Print Network [OSTI]

    Nazarathy, Yoni

    2013-01-01T23:59:59.000Z

    al., 1996). The more recent works on traffic control systems have adopted results of modern control responsibility of Delft University of Technology Keywords: Model Predictive Control, Intelligent Transport System, Congestion Control 1. Introduction Increasing population and economic activities in modern societies have led

  8. [21] M.I. Reiman. Open queueing networks in heavy traffic. Math. of Oper. Res. , 9:441--458, 1984.

    E-Print Network [OSTI]

    .D. thesis, Ludwig­Maximilian­Universit¨at M¨unchen, 1996. [16] A. Mandelbaum. The dynamic complementarity traffic limit theorem for networks of queues with multiple customer types. Math. of Oper. Res., 16 are equal to 1. The determinant of the matrix itself is 1 \\Gamma ` 1 ` 2 ` 3 ` 4 . Now consider D k 3 . Once

  9. Dynamic Scheduling of a Parallel Server System in Heavy Traffic with Complete Resource Pooling: Asymptotic Optimality of a

    E-Print Network [OSTI]

    Dynamic Scheduling of a Parallel Server System in Heavy Traffic with Complete Resource Pooling for individuals, with permission from the authors. Abstract We consider a parallel server queueing system consisting of a bank of buffers for holding incoming jobs and a bank of flexible servers for processing

  10. Use of vegetation for abatement of road traffic noise in a 1:10 scale street model

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    were selected by measuring absorption coefficients and ground impedances in a 1:10 and a full scale was described in in-situ RT measurements with a tree. 2 Urban scale model configurations and measurements 2, France 3305 #12;Sound propagation over the building elements has been evaluated to measure the traffic

  11. Using Secure Real-time Padding Protocol to Secure Voice-over-IP from Traffic Analysis Attacks

    E-Print Network [OSTI]

    Mohanty, Saswat

    2012-07-16T23:59:59.000Z

    utilize the length of the encrypted packets to infer the language and spoken phrases of the conversation. Secure Real-time Padding Protocol (SRPP) is a new RTP profile which pads all VoIP sessions in a unique way to thwart traffic analysis attacks...

  12. A relief route is a segment of a highway that moves traffic around the central business district of a city.

    E-Print Network [OSTI]

    Kockelman, Kara M.

    that had high per capita traffic volumes. In addition, city demo- graphics, regional trends, and proximity study by Yeh et al. (1998) used case study and survey and control-area methodology involving a nonpaired comparison of bypasses and control cities. An analysis of sales and employment data, travel surveys

  13. Keeping British Columbia "the best place on Earth": Reducing the carbon footprint of air traffic in British Columbia

    E-Print Network [OSTI]

    Northern British Columbia, University of

    1 Keeping British Columbia "the best place on Earth": Reducing the carbon footprint of air traffic the aviation industry in British Columbia. Specifically, I calculate the carbon footprint of civil aviation). Aviation is not only intricately integrated into the global economy but also one of the most carbon

  14. Getting Ready for the Challenges for the Air Traffic Management for Unmanned Aerial Systems (UAS) C.W. Johnson,

    E-Print Network [OSTI]

    Johnson, Chris

    for a lost link profile. If communications are lost, the vehicle will autonomously cross the airspace between as EUROCONTROL's Spec-0102 on the Use of Military Unmanned Aerial Vehicles as Operational Air Traffic Outside interaction between ATCOs and UAS platforms. These are the flight patterns that are executed autonomously when

  15. An Empirical Investigation of the Impacts of Sun-Related Glare on Traffic Flow Paper 08-0773

    E-Print Network [OSTI]

    Bertini, Robert L.

    An Empirical Investigation of the Impacts of Sun-Related Glare on Traffic Flow Paper 08 error, or in the worst case to an incident or a crash. Glare can be caused by sun, headlights of other at night, is often addressed with median barriers or glare screens. However, the effect of sun

  16. Implementation Guide for Integrating Pollution Prevention into Environmental Management Systems

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2005-05-27T23:59:59.000Z

    This Guide suggests approaches to integrating pollution prevention into Integrated Safety Management/Environmental Management Systems. Canceled by DOE N 251.82.

  17. Pollution Prevention Opportunity Assessments: A Handbook for Businesses

    SciTech Connect (OSTI)

    Engel-Cox, Jill A.; Fowler, Kimberly M.

    2014-07-05T23:59:59.000Z

    Handbook on how to perform a pollution prevention opportunity assessment prepared for environmentally focused professional or student. Currently being used in support of college-level courses.

  18. advancing prevention research: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    has given 90 million to Harvard Medical Yellen, Gary 28 DIVISION of EPIDEMIOLOGY, STATISTICS and PREVENTION RESEARCH Chemistry Websites Summary: Consortium on Safe Labor 30...

  19. accident prevention manual: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Wu, Mingshen 9 Chest--Manual Defrost Models Biology and Medicine Websites Summary: old refrigerator or freezer, please follow the instructions below to help prevent accidents....

  20. Prevention, Abatement, and Control of Hazardous Substance Release (Iowa)

    Broader source: Energy.gov [DOE]

    The Department of Natural Resources is authorized to establish rules regarding the prevention and mitigation of hazardous substance release. These sections contain information on the notification...