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Title: Optimal Control of Connected and Automated Vehicles at Roundabouts

Abstract

Connectivity and automation in vehicles provide the most intriguing opportunity for enabling users to better monitor transportation network conditions and make better operating decisions to improve safety and reduce pollution, energy consumption, and travel delays. This study investigates the implications of optimally coordinating vehicles that are wirelessly connected to each other and to an infrastructure in roundabouts to achieve a smooth traffic flow without stop-and-go driving. We apply an optimization framework and an analytical solution that allows optimal coordination of vehicles for merging in such traffic scenario. The effectiveness of the efficiency of the proposed approach is validated through simulation and it is shown that coordination of vehicles can reduce total travel time by 3~49% and fuel consumption by 2~27% with respect to different traffic levels. In addition, network throughput is improved by up to 25% due to elimination of stop-and-go driving behavior.

Authors:
 [1];  [2]; ORCiD logo [2]
  1. University of Delaware
  2. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1427649
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: 2018 TRB Annual Meeting - Washington D.C., District of Columbia, United States of America - 1/7/2018 10:00:00 AM-1/11/2018 10:00:00 AM
Country of Publication:
United States
Language:
English

Citation Formats

Zhao, Liuhui, Malikopoulos, Andreas, and Rios-Torres, Jackeline. Optimal Control of Connected and Automated Vehicles at Roundabouts. United States: N. p., 2018. Web.
Zhao, Liuhui, Malikopoulos, Andreas, & Rios-Torres, Jackeline. Optimal Control of Connected and Automated Vehicles at Roundabouts. United States.
Zhao, Liuhui, Malikopoulos, Andreas, and Rios-Torres, Jackeline. Mon . "Optimal Control of Connected and Automated Vehicles at Roundabouts". United States. https://www.osti.gov/servlets/purl/1427649.
@article{osti_1427649,
title = {Optimal Control of Connected and Automated Vehicles at Roundabouts},
author = {Zhao, Liuhui and Malikopoulos, Andreas and Rios-Torres, Jackeline},
abstractNote = {Connectivity and automation in vehicles provide the most intriguing opportunity for enabling users to better monitor transportation network conditions and make better operating decisions to improve safety and reduce pollution, energy consumption, and travel delays. This study investigates the implications of optimally coordinating vehicles that are wirelessly connected to each other and to an infrastructure in roundabouts to achieve a smooth traffic flow without stop-and-go driving. We apply an optimization framework and an analytical solution that allows optimal coordination of vehicles for merging in such traffic scenario. The effectiveness of the efficiency of the proposed approach is validated through simulation and it is shown that coordination of vehicles can reduce total travel time by 3~49% and fuel consumption by 2~27% with respect to different traffic levels. In addition, network throughput is improved by up to 25% due to elimination of stop-and-go driving behavior.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {1}
}

Conference:
Other availability
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