港湾式公交停靠站设置条件研究

Study of Setting Conditions of Bus Bay Stop

针对城市道路中公交进出直线式与港湾式停靠站对外侧车道通行能力产生影响的问题,运用排队论与间隙接受理论相关成果,分别建立了直线式、港湾式排队无溢出及港湾式排队有溢出3种情况下公交进出停靠站对外侧车道的影响时间模型;在此基础上以公交出站延误及站点服务强度作为约束条件,推导出外侧车道通行能力计算模型,并给出设置条件;对仿真模拟试验结果与模型计算结果进行对比,并对模型适用性进行了检验,给出了不同公交到达率下3种模式设置港湾式公交停靠站的通行能力范围值。结果表明:该模型具有较高的精度和可靠性,能够为城市道路设计提供必要的参考依据。

Aimed at the capacity reduction problem of outside lane when buses move in and out of the linear bus stops and bus bay stops in urban road,using the related results of queuing theory and gap acceptance theory,influence time models to outside lane under three kinds of conditions were established separately,including linear bus stops,bus bay stops with overflow and bus bay stops without overflow.Then,regarded the delay of bus moving out of bus stop and service intensity as the constraint conditions,capacity calculation models of the outside lane were worked out,and the setting conditions were given.At last,comparative analyses for the results of simulation experiment and model calculation were carried out and the adaptabilities of models were checked out.The range values of capacity on three kinds of bus bay stops with different bus arriving rates were given.Results show that the suggested models have high accuracy and reliability,and can provide essential reference for road design.