01515324

Component

https://doi.org/10.3141/2427-09

http://scholar.google.com...ulou&publication_year=2014

A traffic simulation was developed for a dense neighborhood in the city of Montreal, Quebec, Canada (8,656 links), and was linked with a regional traffic assignment model, which was used to determine the travel demand originating in and destined for the study area. With a version of the U.S. Environmental Protection Agency’s Motor Vehicle Emissions Simulator model fit with local data, traffic emissions for each link were simulated by the use of instantaneous speed profiles. Emissions of greenhouse gases (GHG), oxides of nitrogen (NOx), and carbon monoxide (CO) were modeled under a range of regional and local policies, including fleet renewal, street closures, reduced demand, reduced internal car trips, and reduced through traffic. Several traffic scenarios were modeled in the traffic assignment and simulation models to represent these policies. Because of the high congestion levels in the neighborhood under base case conditions, limited networkwide reductions in emissions were observed, except in the scenario that aimed to reduce through traffic (29% reduction in GHG emissions compared with that in the base case scenario). Significant changes in the spatial patterns of emissions were detected. Average and instantaneous speed-based estimates were also compared; the average speed mode tended to overestimate total emissions as network speeds decreased. Finally, dispersion modeling was conducted along selected corridors to evaluate the effects of different scenarios on air quality. The study found significant increases in air pollution as a result of the street closure scenario and significant decreases with the reduced through traffic scenario.

01548213

14-3071

English

pp 83–92

2014

Transportation Research Record: Journal of the Transportation Research Board

9780309295284

Print

Figures (7) ; References (12) ; Tables (4)

Air quality; Exhaust gases; Greenhouse gases; Microscopic traffic flow; Neighborhoods; Policy analysis; Speed; Through traffic; Traffic simulation; Urban areas

Motor Vehicle Emission Simulator (MOVES)

Energy; Environment; Highways; Planning and Forecasting; Policy; I10: Economics and Administration; I15: Environment; I72: Traffic and Transport Planning

TRIS, TRB, ATRI

Jan 27 2014 3:03PM

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