Use of link-base data to add definition to highway mobile emissions for the UAM

Conference · Sat Dec 31 04:00:00 EST 1994

OSTI ID:197400

Galamb, A S ^[1]

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1. North Carolina Dept. of Environment, Health and Natural Resources, Raleigh, NC (United States)

In developing highway mobile emissions for the Urban Airshed Model (UAM), the North Carolina Division of Environmental Management (DEM), Air Quality Section utilized link-based data, in addition to highway performance monitoring system (HPMS) data, in order to add definition to the mobile source emissions. HPMS data provided vehicle miles travelled by functional class per county. Link-base data allowed emissions to be calculated for each road segment, or link, for each of the top three functional classes. The link-based mobile emission estimate method was selected for North Carolina because of the nature of the state. The majority of North Carolina`s population is in three city clusters (Raleigh/Durham, Greensboro/Winston-Salem/High Point and Charlotte/Gastonia). These clusters are composed of medium-sized cities with an average of 60 miles between the clusters. With a concentration of population in 3 widespread city centers, the link-based emissions were thought to give a more accurate estimate of emissions and modeling results than simply allocating the emissions over each county on a population density basis without respect to the location of roads. This paper details the structure of the project, as well as the quality assurance process.

• OSTI ID: 197400
• Report Number(s): CONF-9405167--
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
AIR QUALITY
EMISSION
EXHAUST GASES
MATHEMATICAL MODELS
MOBILE POLLUTANT SOURCES
NORTH CAROLINA
URBAN AREAS