Impacts of traffic‐flows on vehicular‐exhaust emissions at traffic junctions

Impacts of traffic‐flows on vehicular‐exhaust emissions at traffic junctions

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Article ID: iaor201110868
Volume: 17
Issue: 1
Start Page Number: 21
End Page Number: 27
Publication Date: Jan 2012
Journal: Transportation Research Part D
Authors:
Keywords: modelling, pollution, emissions
Abstract:

This paper examines the impact of traffic‐flow on CO, NO2 and PM emissions at two distinct traffic junctions and evaluates the use of emission factors. The study includes three scenarios regarding pollutant emissions, which combine a field, experimental and semi‐empirically estimated traffic parameters for free, interrupted and congested traffic‐flow conditions. It evaluates the emission patterns for heterogeneity in traffic characteristics of both junctions. The results suggest the corrections to be made to emission factors at traffic junctions for better forecast of air quality.

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