主干线交通信号协调控制优化研究

为了探究车路协同技术在主干线交通信号协调过程中的具体方法与应用途径,该文从系统框架、协调措施、案例仿真方面,开展车路协同交通参数实时互通条件下的交通动态控制技术研究。研究认为,车路协同干线交通控制系统主要由智能路侧系统、智能车载系统、交通控制系统组成。针对车路协同干线交通协调措施,设计“车速诱导+信号控制”方案的流程与相位差模型,并以某省会城市5个相邻路口的交通数据为依托,建立VISSIM仿真模型。计算结果表明,相比仅采用车速诱导方案,“车速诱导+信号控制”方案能够有效提升路段通行效率,车均延误指标下降13.35%,平均停车次数指标下降37.62%。

In order to explore the specific methods and application paths of vehicle-road collaboration technology in the process of traffic signal coordination on trunk lines,this paper carries out research on traffic dynamic control technology under the condition of real-time interoperability of vehicle-road collaboration traffic parameters from the aspects of system framework,coordination measures,and case simulation.Research believes that the vehicle-road coordinated trunk traffic control system mainly consists of intelligent roadside systems,intelligent vehicle-mounted systems,and traffic control systems.Aiming at the traffic coordination measures of vehicle-road coordinated trunk lines,the process and phase difference model of the"speed guidance+signal control"scheme are designed,and based on traffic data of five adjacent intersections in a provincial capital city,a VISSIM simulation model is established.The calculation results show that compared with using only the speed guidance scheme,the"speed guidance+signal control"scheme can effectively improve the traffic efficiency of road sections.The average vehicle delay index is reduced by 13.35%,and the average number of stops is reduced by 37.62%.