车辆排队位置确定模型及其网络效应分析

为了揭示车辆排队形成的多米诺效应，基于运动学起动–停车波模型构造了车辆排队位置确定模型。该模型能实时确定路网中任意车流形成的排队队列的头部位置、尾部位置和队列长度。根据该模型以及车流间的相互作用，以任意相邻的两个交叉口为例，分10种情况讨论了下游车流能否对延续车流或冲突车流造成阻滞作用，从而能否引起网络效应。结果表明，相邻路段车辆排队之间的耦合关系是研究网络效应的核心。研究成果可以为探讨车辆排队产生网络效应的形成机理奠定基础，为认识车辆排队的演化规律提供工具与方法。

Vehicular Queue Location Decision Model and Its Domino Effect Analysis

To describe the domino effect resulted from vehicular queue, the vehicular queue location decision model was constructed based on the kinetic start-stop waves model. The model can decide the head location, the end location and the length of any queue in traffic network real time. According to the model and the correlative action between two flows, the problem of whether the downstream flow blocks the upstream flow or the conflicted flow, namely, whether the domino effect occurs was discussed by taking any neighbor intersections as examples. The results show that the coupling relation between the vehicular queues on neighbor segments is a core to study the domino effect in traffic network. The research achievements can provide the basis for discussing the formation mechanism of the domino effect resulted from vehicular queue and supply a tool and a method for recognizing the evolution principle of vehicular queue.