基于控制系数的交通信号动态配时研究

为缓解城市路口处的交通拥挤状况,针对路口多相位交通流建立一种实时动态模型,提出一种基于控制系数的交通信号配时方法。用随机的交通流数据模拟路口各个车道上监测到的车辆数目,在以各个相位对应车道上的车辆数目按照比例分配相位时间的基础上,提出车辆资源竞争公平性问题,引入控制系数,以最大通行能力为路口模型控制性能指标,进行周期信号灯配时的仿真。仿真结果表明,此方法比定时控制方法提高了1.7%的通行率,对于路口的信号控制是行之有效的。

Research on Traffic Signal Dynamic Timing Based on Control Coefficient

In order to alleviate urban traffic congestion at the i unction, a real-time dynamic model in al- lusion to multiphase traffic flows is set up. This paper proposes a traffic signal timing method based on control coefficient. The number of vehicles detected in every lane is simulated by random traffic flow data. On the basis of allocating phase time according to the proportion for the number of vehicles on the corresponding lane of each phase, this paper put forward vehicle resource competition justice, introduces control coefficient and simulates periodic signal lamp timing with the maximum traffic capacity as intersection model control performance index. The simulation results show that this method improves 1.7% traffic rate compared with the timing control method and it is effective for intersection signal control.