考虑交叉口延误的超路径算法及其应用

Hyperpath Algorithm Considering Intersection Delay and Its Application

城市道路中交叉口信号的周期性变化是不确定延误的主要成因,为此,以路段行驶时间和交叉口期望延误最小为优化目标,提出了基于交叉口信号配时的超路径搜索方法.通过扩展网络描述车辆在交叉口的不同转向行为之间的延误差异.根据信号配时方案,得到了各转向最大等待时间和转向比率.面向车路协同系统,提出了一种基于超路径的“优先绿灯相位”的诱导策略.模拟实验表明,车辆可根据诱导策略在超路径中变换行驶路线,将有效降低交叉口的等待延误,实现路网流量合理分配的目的.

The periodic change of intersection signal in urban roads is the main cause of uncertain delay.For this reason,a super-path search method based on intersection signal timing was proposed,aiming at minimizing the travel time of road sections and the expected delay of intersections.The delay difference between different turning behaviors of vehicles at intersections was described by extended network.According to the signal timing scheme,the maximum waiting time and steering ratio of each steering were obtained.For Intelligent Vehicle Infrastructure Cooperative Systems,an induction strategy of“priority green light phase”based on hyperpath was proposed.Simulation experiments show that vehicles can change their driving routes in the super-path according to the guidance strategy,which will effectively reduce the waiting delay at intersections and achieve the purpose of rational distribution of road network traffic.