基于综合通行能力最优的公交优先控制模型

Bus Priority Control Model Based on Optimal Integrated Capacity

为了保证公交车辆在交叉口的优先通行权,减少公交车辆在交叉口的行车延误,缓解交通拥堵,考虑非优先相位的绿灯时间约束和最小周期时长约束,基于交通流融合,提出以综合通行能力为控制指标的公交优先单点控制模型,运用仿真软件Vissim分别对现状信号控制方式、传统公交优先信号控制方式与所提出的公交优先信号控制方式进行系统仿真。结果表明,所提出的公交优先控制模型减少了公交车辆的行车延误与交叉口人均延误,使得交叉口通行能力最优,实现了交叉口公交优先。

To ensure priority right of passage of buses at intersections and reduce delay of buses at intersections to alleviate traffic congestion,considering constraints of green light time and minimum period time of non-priority phases,a bus priority single point control model taking integrated capacity as a control index was proposed based on traffic flow fusion.Simulation software Vissim was used to simulate different control modes,including current state signal control mode,traditional bus priority signal control mode,and the proposed bus priority signal control mode.The results show that the proposed bus priority control model reduces traffic delay of buses and per capita delay at intersections,optimizes capacity at intersections,and realizes bus priority at intersections.