考虑信号优先的相邻公交停靠站最佳布置方法

首先建立了在离线信号配时方案下，单个车辆通过信号控制交叉口群的信号延误计算模型；进而以车均延误最小为目标，建立了停靠站最佳布置的选择模型。通过对优化模型解的分析表明，不同的信号协调配时方案对应不同的停靠站最佳布置方案，单点最优解的叠加并非是全局最优解。以两个交叉口和两个停靠站的实际案例进行计算分析，得出在信号优先协调控制方案下的停靠站最佳布置方案，最佳布置方案的下车辆延误明显低于其他方案。最后通过微观仿真软件VISSIM验证了模型的计算结果。

Optimal Location of Adjacent Bus Stops on Condition of Bus Signal Priority

Both the layout of bus stops and bus signal priority are core parts of transit priority design.Buses must stop at pre-establish bus stops.This characteristic affect the buses arrival time at downstream intersections after they passed upstream intersection stop line,and the delay at downstream intersections was occurred.A delay calculating model for single bus passing the total coordinated intersection groups was built based on an off-line signal plan(a signal plan of passive signal priority strategy).Then an optimal location model for adjacent bus stops in a coordinated intersection group was built with the objective of minimizing average bus delay.The analyses of solutions of the proposed model indicate that optimal location of bus stops between adjacent intersections has much relationship with coordinating signal plan and the simple combination of optimal solution for single intersection are not the optimal solution for total coordinated intersection and bus stop groups.A field test and simulation were implemented on two coordinated signal control intersections and two bus stops.The results show that the solution of the model is close to the simulation results and the total average bus delay of the optimal location dramatically less than others solutions.