BRT车站濒临交叉口的信号配时优化算法研究及应用

当BRT车站濒临交叉口时,上游交叉口的信号控制易影响下游车站的进站排队,进而影响车辆在车站的延误;以车辆在交叉口的延误和在车站的延误总和最小为目标,采用动力学、信号控制和交通流等方法建立交叉口的信号配时优化算法,并用Visual Basic实现算法。以广州市中山大道BRT的车陂交叉口与车陂站为案例,用Vissim仿真验证算法。仿真结果表明算法的正确性与实用性,实现了车辆的总延误最小。

Signal Timing Optimization of BRT Station near Intersection

For BRT stations in the vicinity of intersection,the signal control of the upstream intersection affects the queue and delay of the downstream station.By minimizing the total delay of vehicles at the station and in the intersection,an intersection signal timing optimization algorithm is established with dynamic control of traffic flow and implemented by using Visual Basic.Finally,taking Chebei Intersection and Chebei Station of the BRT of Zhongshan Road in Guangzhou as an example,the paper verifies the algorithm by VISSIM simulation.The simulation results show that the algorithm is effective and practical to achieve the minimum total delay of the vehicles.