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Increase in particle number emissions from motor vehicles due to interruption of steady traffic flow

Jayaratne, Rohan, Wang, Lina, Heuff, Darlene , Morawska, Lidia, & Ferreira, Luis (2009) Increase in particle number emissions from motor vehicles due to interruption of steady traffic flow. Transportation Research. Part D : Transport & Environment, 14(7), pp. 521-526.

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Abstract

We assess the increase in particle number emissions from motor vehicles driving at steady speed when forced to stop and accelerate from rest. Considering the example of a signalized pedestrian crossing on a two-way single-lane urban road, we use a complex line source method to calculate the total emissions produced by a specific number and mix of light petrol cars and diesel passenger buses and show that the total emissions during a red light is significantly higher than during the time when the light remains green. Replacing two cars with one bus increased the emissions by over an order of magnitude. Considering these large differences, we conclude that the importance attached to particle number emissions in traffic management policies be reassessed in the future.

Impact and interest:

13 citations in Scopus
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11 citations in Web of Science®

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ID Code: 27537
Item Type: Journal Article
Keywords: particle number emission, vehicle emissions, traffic flow, traffic congestion, pedestrian crossing
DOI: 10.1016/j.trd.2009.07.007
ISSN: 1361-9209
Subjects: Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > ATOMIC MOLECULAR NUCLEAR PARTICLE AND PLASMA PHYSICS (020200) > Particle Physics (020203)
Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > ATMOSPHERIC SCIENCES (040100) > Atmospheric Aerosols (040101)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Current > Institutes > Institute of Health and Biomedical Innovation
Past > Schools > School of Physical & Chemical Sciences
Copyright Owner: Copyright 2009 Elsevier.
Deposited On: 24 Sep 2009 14:47
Last Modified: 01 Mar 2012 00:07

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