信号交叉口增量延误分析

Analysis of Increased Delay in Signalized Intersection

为了对交通信号控制参数进行优化,需对交叉口延误进行定量分析与计算。对已有的平面信号交叉口增量延误模型提出了改进,并且对该模型进行了校正。针对交叉口处于非饱和与过饱和状态下的交通状况,用排队论分析并推导了交叉口增量延误公式。其结果既完善了现有的延误计算理论,又可为设置信号相位提供理论依据。

In order to optimize signal control parameters ,intersection delay should be carefully analyzed and calculated. This paper improves the signalized intersection model and makes an adjustment to it. It analyzes and infers intersection delay formation against non-saturated and oversaturated traffic conditions of intersections with queuing theory. The result not only complements the existing delay theory, but also provides theoretical foundation for setting signal phase.