公交车站对交通流影响模拟分析

采用元胞自动机模型对城市道路中公交车站影响下的交通流特性进行模拟分析.研究了非港湾式车站和港湾式车站两种设置方式下交通流特性，对公交车比例和公交车站长度的影响进行了分析.模拟结果显示非港湾式车站对交通流的影响较大，通过增加车站长度并不能有效地提高系统流量；港湾式车站对交通流的影响较小，通过增加车站长度可以较大程度地增加系统流量. 关键词： 公交车站 混合交通流 元胞自动机

The influence of bus stop on the dynamics of traffic flow

The impact of bus stop on the dynamics of traffic flow is studied by a cellular automata model. Two types of bus stops, non-harbor shaped and harbor shaped, are considered. The properties of traffic flow are investigated by analyzing the fundamental diagram and the spatial-temporal diagram. The influences of bus ratio and length of bus stop are analyzed in detail. The simulation results show that the non-harbor shaped bus stop has more influence on the traffic flow, and the flux cannot be effectively increased by extending the bus stop length; the harbor shaped bus stop has less influence on the traffic flow and the flux can be improved by extending the bus stop length.