Study to determine availability of parts at dealers during a recall campaign. Final report.

National Highway Traffic Safety Administration, Office of Defects Investigation, Washington, D.C.

Systems feasibility study: states' assistance in defect recall campaigns. Final report, Volume I.

National Highway Traffic Safety Administration, Washington, D.C.

Systems feasibility study: states' assistance in defect recall campaigns. Final report, Volume II.

National Highway Traffic Safety Administration, Washington, D.C.

Systems feasibility study: states' assistance in defect recall campaigns. Final report, Volume III.

National Highway Traffic Safety Administration, Washington, D.C.

Systems feasibility study: states' assistance in defect recall campaigns. Final report, Volume IV.

National Highway Traffic Safety Administration, Washington, D.C.

Motor vehicle defects and recall campaigns.

Mode of access: Internet.

Safety defect recall campaigns.

Mode of access: Internet.

Better enforcement of car emission standards - a way to improve air quality.

Mode of access: Internet.

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

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.