公交优先信号控制优化方法

An Optimization Method of Signal Control for Bus Priority

根据信号交叉口理论,在以往信号延误研究的基础上,考虑到公交车辆平均载客数远大于社会车辆平均载客数,以减少交叉口人总延误最小为系统优化目标,分析并推导了公交优先信号控制优化模型,并用具体的实例说明了公式的用法。研究结果表明,交叉口人均延误减少量与公交车流率及优先时间的长短有关。运用该优化方法能够明显降低交叉口的人均延误,有效保证公交车的准时性,是减少公交车延误的一种可行、有效的方式。

Adopted signalized intersection theory,based on the research foundation of vehicle delay of the signal control,by taking into account the average number of the passengers in the bus is much larger than in the ordinary vehicles,anthors have analyzed and inferred an optimization method of the signal control for bus priority,in which the average people delay is regarded as an optimal aim of system.And authors have applied specific cases to illustrate how to use them.The formulation has indicated the average passenger delay at signalized intersections is relevant with the bus arrival rate and the priority time.The optimization method is a feasible and efficient approach to reduce bus delays,because it can reduce average passenger delay significantly.