单车道港湾式公交停靠站设置条件研究

公交进出停靠站对道路通行能力产生折减,运用排队论与间隙接受理论相关知识,对单车道公交停靠站上下限设置条件进行研究,分别建立了直线式、港湾式公交进出停靠站对机动车道的影响时间模型;进而以公交出站延误及站点服务强度作为约束,推导出机动车道通行能力及设置条件模型;最后对仿真试验结果与模型计算结果进行对比分析、模型的适用性进行检验,给出不同公交到达率下设置港湾式公交停靠站通行能力范围值。结果表明:当公交到达率为20 veh/h和30 veh/h时,对应的单车道港湾式公交停靠站设置的上下限条件分别为:518～1 262 veh/h、518～1 243 veh/h。可见,该模型具有较高的精度和可靠性,所得结果能够为城市道路设计提供必要的参考依据。

Study of Setting Conditions of Bus Bay Stop of Single Lane

Aimed at the capacity reduction factor of outside lane when buses move in and out of bus stops, using the related results of queuing theory and gap acceptance theory, the setting conditions of margin for the stops of single lane were discussed. The influence time models of linear bus stops and bus bay stops of mobile lane were established separately. Then, considered the delay of bus moving out of bus stop and service intensity as the constraint conditions, the capacity calculation model and condition setting model of mobile lane were worked out. At last, the simulation experiment and model calculation results were comparatively analysed,  the adaptability check of models was performed,  and the ranges of capacity with different bus arriving rates were given. The results show that the setting conditions of bus bay stops of single lane are 518~ 1262 veh/h and 518~1243 veh/h separately when the arriving rates of buses are 20 veh/h and 30 veh/h. So the suggested models have high accuracy and reliability, and the results can provide an essential reference for urban road design.