Measurements of roadside air pollution and traffic simulations.

Author(s)
Tsubota, Y. & Kawashima, H.
Year
Abstract

Air pollution levels at the roadside were measured and traffic flows were analyzed in order to determine the dynamic features of air pollutants. Moreover, a traffic simulator was used to simulate observed traffic flows and to evaluate proposed strategies. It was found that temperature-inversion above the road surface due to vehicle exhaust emissions might suppress the vertical dispersion of air pollutants in the early morning. It was also found that concentrations of air pollutants at the roadside near traffic lights had periodicity corresponding to the traffic signal cycle. But the phase of nitrogen dioxide concentration was different from that of suspended particulate matter. It was found that total traffic volume depended mainly on the number of small cars, but level of air pollution along the roadside seemed to depend mainly on the number of heavy-goods vehicles. A vehicle-actuated signal-control system that enables reduction of the air pollution level at the roadside is proposed. For the covering abstract see ITRD E128239.

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Publication

Library number
C 35583 (In: C 35524 [electronic version only]) /15 /73 /90 / ITRD E128298
Source

In: Urban transport VIII : urban transport and the environment in the 21st century : proceedings of the Eighth International Conference on Urban Transport and The Environment in the 21st Century, Seville, Spain, 13-15 March 2002, p. 603-611, 4 ref.

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This publication is one of our other publications, and part of our extensive collection of road safety literature, that also includes the SWOV publications.