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为了给中小城市建立低碳交通体系提供理论依据,利用美国联邦公路局(FHWA)微观仿真软件TSIS/CORSIM,并结合广东省清远市中心城区的交通调查,建立了清远中心城区路网交通仿真模型,对以现状交通流量为基础设定的5个情景方案进行了仿真研究.结果表明:随交通流量的增大,路网的交通排放增加,当增大到1.5倍时,车辆每公里的HC,CO,NOx和CO2排放分别上升8%,12%,12%和29%,当交通流量增加(1.5倍)导致交通拥挤时,额外燃油消耗为225 L,额外CO2排放为518 kg,占总排放的16.3%.
In order to provide a theoretical basis for establishing a low-carbon transportation system in small and medium-sized cities, a traffic simulation model of Qingyuan downtown road network was established by using the FHWA micro simulation software TSIS / CORSIM and traffic investigation in downtown Qingyuan of Guangdong Province , The five scenario scenarios based on the current traffic flow are simulated.The results show that with the increase of traffic flow, the traffic emission of the road network increases, and when it increases to 1.5 times, the HC , CO, NOx and CO2 emissions increased by 8%, 12%, 12% and 29% respectively. When the traffic flow increased (1.5 times) leading to traffic congestion, the additional fuel consumption was 225 L and the extra CO2 emission was 518 kg, accounting for a total of 16.3% of emissions.