信号交叉口进口道上游公交停靠站设置研究

Research on the location of bus stops upstream the approach at signalized intersections

信号交叉口进口道上游适当位置设置公交停靠站,可方便乘客集散、减少公交车辆上下客对社会车辆的影响,进而提高交叉口的通行效率.在对进口道前公交停靠站处公交车辆停靠影响分析的基础上,建立了无公交专用道的两相位信号控制十字交叉口条件下交叉口总乘客延误模型,并以乘客总延误最小原则建立了信号优化模型.给出了两相位十字交叉口最佳红灯时间的解法,并根据最佳红灯时间与公交到达时间、停靠服务损失时间及其引起的绿灯损失时间之间的关系,得出公交停靠站与信号交叉口停车线之间的最佳距离.

Setting up bus stops at proper location of the upstream approach at signalized intersections is convenient for passengers. It can also reduce the impact of the passengers＇ getting on and off on public vehicles, and improve the efficiency of the crossing. On the analysis of the impact of bus stopping at a bus stop which is upstream the approach to the signalized intersection, this paper established a total passenger delay model of two -phase signalized intersections which have no bus lane and gave a signal optimization model based on the principle of minimum total passenger delay. This paper also gave a method to solve the optimum red time of two- phase signalized intersection. According to the relationship between the optimum red time and the bus arrival time, bus stopping time loss and the green time loss by bus stopping, the optimum distance between the bus stop and the stop line of the signalized intersection was determined.