复杂道路交叉口有轨电车信号优先控制方法

Research of Tram Signal Priority Control at Complex Intersections

为保障在有轨电车优先通行的同时,减小对社会交通造成的不利影响,对城市道路复杂交叉口有轨电车信号优先控制方法开展设计与验证,从信号相位、信号相序、背景配时、优先参数、控制算法等多个方面进行综合分析。所提出的复杂交叉口优先控制方法能够在分配相位时间时有针对性地提高社会交通相位绿信比,缓解有轨电车优先控制对社会交通的干扰;能够根据各相位的交通流饱和度合理分配红灯时间,均衡交叉口交通负荷。实例仿真结果表明,所提出的方法能够在不显著增加社会交通延误的同时,有效减少有轨电车的延误时间。

To guarantee the priority of trams and minimize the influence of community vehicles at the same time,a tram signal priority control method at complex intersections is designed and verified in this paper. This method covers all aspects of tram signal priority implementation,such as the signal phase,signal sequence,background timing,priority parameters,control algorithm and so on. The proposed signal priority model at complex intersections could enhance the green split of non-priority phases to release the interference of tram signal priority on community vehicles during the background timing step,and split the red truncation time with phase saturation to balance the intersection traffic load. A simulation analysis based on the real environment in Huai＇ an City validates the method,it shows that the execution of the proposed method at complex intersections can decrease tram delay efficiently,and cast no significant impact on the operation of community vehicles at the same time.