信号交叉口公交专用进口道设置条件与效果分析

Setting Condition and Effect Analysis of Bus Lanes at Signalized Intersection

分析了已有公交优先策略评价与仿真方法的局限性,考虑不同的交通需求水平与信号配时参数,将车均延误、人均延误和车辆排队长作为单个信号交叉口运行评价指标,以三相位十字信号交叉口为例,利用Simio仿真分析了公交专用进口道设置前后上述评价指标的变化规律.结果可用于交叉口公交优先信号配时参数的优化.

The limitations of evaluation and simulation methods for the existed bus priority strategy are analyzed.Average vehicle delay,average delay of customers and queue length are taken as evaluation indexes.Considering different traffic demand and signal timing parameters,a simulation example of a three-phase signalized intersection is presented to experiment and analyze the change rule of evaluation index with and without bus lanes,respectively by using the object-oriented simulation software Simio.The study results can be used in optimization signal timing parameters of signalized intersection based on bus priority.