基于车路协同的无控十字路口行车方案

针对紧急车辆在无信号控制十字路口处通行效率低和事故频发的问题,基于SUMO与OMNet++的双向耦合车联网仿真平台Veins中搭建了车辆运动控制系统模型,设计路口处紧急车辆与普通车辆碰撞的判定方法和紧急状况下车辆避免碰撞行车措施,提出基于车路协同技术的无控十字路口紧急车辆行车方案。在Veins车联网仿真平台上对行车方案进行仿真验证。结果表明:应用方案可提高紧急车辆通过无信号控制十字路口效率64.3%以上,并将紧急车辆在无信号控制路口处的事故率由36.7%降低至3.3%。

Traffic Scheme at Unsignal Controlled Intersections Based on Cooperative Vehicle Infrastructure System

Regarding the problems of low efficiency and frequent accidents of emergency vehicles at unsignal controlled intersections,a vehicle motion control system mode was built in a two-way coupled vehicle networking simulation platform based on the SUMO and OMNet++.The method for judging the collision between emergency vehicles and ordinary vehicles at intersections and the driving measures to avoid collisions of vehicles in emergency situations were designed,and an emergency vehicle driving program at an uncontrolled intersection based on vehicle-road coordination technology was proposed.The above scheme was simulated and verified on the Veins car networking simulation platform.Experimental results show that the application scheme can increase the efficiency of emergency vehicles passing through unsignal controlled intersections by more than 64.3%,and reduce the accident rate of emergency vehicles at unsignal controlled intersections from 36.7%to 3.3%.