An Integrated Emission and Dispersion Model under Mixed Traffic Conditions
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概要
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This paper develops the emission and dispersion model based on our previously proposed and validated mixed traffic cell-transmission model (MCTM). Additionally, the emission coefficients of various types of motor vehicles and the Gaussian puff dispersion model are integrated into the MCTM model to simulate the dynamic emission concentration along the roadway. To investigate the applicability of the proposed model, a signalized intersection under various traffic conditions and signal timing plans are simulated and compared. Taking one of pollutants, carbon monoxide (CO), as example, dynamic CO concentrations of a total of 10 spots at different distances from the intersections are analyzed and compared. Results show that the CO concentration decreases as the distance from the intersection increases. Moreover, it is interesting to note that the total CO emissions will increase as the intersection delay increases, but the CO concentration does not remarkably increase.
著者
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CHIOU Yu-Sheng
Institute of Traffic and Transportation, National Chiao Tung University
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CHIOU Yu-Chiun
Institute of Traffic and Transportation National Chiao Tung University
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HSIEH Chih-Wei
Institute of Traffic and Transportation, National Chiao Tung University
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