为分析城市公交车停靠行为对道路通行能力的影响,在观测公交车停靠行为特征基础上,运用交通冲突技术,构建城市双车道道路通行能力模型。给出公交车停靠持续时间和停靠频次2个指标,计算和分析数据,从宏观角度研究公交车停靠行为对城市道路通行能力的影响。结果表明:公交车停靠行为导致2车道车辆产生冲突,形成临时交通瓶颈,对道路通行能力产生显著不利影响;随着停靠持续时间和停靠频次的增加,道路通行能力显著下降,对右车道通行能力影响最明显。
A road capacity model based on characters of bus stopping behavior was built by using the conflict technique,by which changes in road capacity as a function of bus stopping behavior were simulated. The results indicate that bus stopping behavior causes vehicles conflict on two lanes and induces a temporary traffic bottleneck,and affects road capacity obviously,that with increase of time of stopping duration and stopping frequency,road capacity decreases obviously,and that bus stopping behavior affects more obviously road capacity of the right lane.