Abstract: Through the survey on the traffic condition of Shuxi Road in Chengdu and the analysis of its traffic flow,service level and other traffic characteristics,the feasibility of setting up variable lane on the basis of the relevant requirements is demonstrated.The specific design program of variable lane is proposed to ease traffic congestion in the morning and evening peak on Shuxi Road.At the meantime,its implement effect is tested by road traffic simulation.

Key words: traffic flow, service level, tide traffic, variable lane

摘要： 通过对成都市蜀西路实地交通调查,在分析其交通流量、服务水平等交通特性的基础上,根据设置可变车道的相关要求,论证了可变车道设置的可行性。提出了可变车道的具体设计方案并进行了实施效果仿真实验,以达到缓解蜀西路早晚高峰交通拥挤状况的目的。

关键词: 交通流量, 服务水平, 潮汐交通, 可变车道