Journal of Korean Society for Atmospheric Environment
- 제9권E호
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- Pages.364-372
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- 1993
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- 1598-7922(pISSN)
A Study on the Relationship between the Traffic Signal System and the Air Pollutants emitted by the Motor Vehicles at Intersection
- Hong, Min-Sun (Dept. of Environmental Eng. Ajou University) ;
- Woo, Wan-Gi (Dept. of Environmental Eng. Ajou University) ;
- Park, Jong-In (Dept. of Environmental Eng. Ajou University)
- 발행 : 1993.12.01
초록
The purpose of this study is to analyze traffic patterns by use of TRANSYT-7F Model, and to choose the optimum traffic-light cycle length and cycle splite to improve traffic flow and air quality at Samsung Intersection in Seoul. Emission rates of air pollutants are calculated for three time segments 0700-0900, 0900-1800 and 1800-2000. The traffic volume correlated reasonably well with air pollutants emitted ; however, the phasing and timing of traffic signals was found to equally be important. The results of performance with optimal setting indicate that the best cycle length were 80sec(0700-0900), 95sec(0900-1800) and 90sec(1800-2000), res-pectively. As expected the highest emissions of air pollutants were observed during the evening rush hours (1800-2000). A properly designed signalized intersection can help reduce traffic delay, driver discomfort, fuel consumption, and air pollution by efficiently the capacity of existing intersection.
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