城市货运交通对交通速度和延误的影响分析

Impact Analysis of Urban Freight Transport on Traffic Speed and Delays

文章基于我国货运交通发展现状及城市货运交通发展特性,借助VISSIM仿真软件,采用路段车速、货车比例、流量、车道数和延误五个指标分析了城市道路路段上货运交通量的变化对交通系统的运行速度和延误带来的影响。结果表明:当货运交通量比例超过20%时,需要对货运交通采取相应的分离措施以减少其带来的影响。

Based on the current development situation of Chinas freight transportation and the urban freight transport development properties,through VISSIM simulation software,this article analyzed the impact on the operating speed and delays of traffic system by the the changes in the freight traffic vol-ume on urban road segments by using five indicators of vehicle speed in road segment,the proportion of trucks,traffic flow,number of lanes,and delays.The results showed that:when the proportion of freight traffic is over 20%,the appropriate separation measures shall be taken for freight traffic in order to re-duce its impact.