1. Increase in particle number emissions from motor vehicles due to interruption of steady traffic flow
- Author
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Luis Ferreira, Darlene Heuff, Lina Wang, E.R. Jayaratne, and Lidia Morawska
- Subjects
Engineering ,Particle number ,business.industry ,Poison control ,Transportation ,Pedestrian crossing ,Urban road ,Traffic flow ,Automotive engineering ,Diesel fuel ,Traffic congestion ,Gasoline ,business ,General Environmental Science ,Civil and Structural Engineering - 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.
- Published
- 2009
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