自动驾驶条件下城市道路机动车道宽度设计的思考

Reflection on the Design of Urban Roads Lane Width under Autonomous Driving Conditions

自动驾驶汽车的技术模式有别于传统汽车,对道路设计的要求也发生了变化。为深入研究自动驾驶条件下城市道路的机动车道宽度,从车辆外廓尺寸、车辆速度、车辆技术性能等角度,对传统车辆和自动驾驶车辆进行对比分析,判断适应自动驾驶车辆的城市道路机动车道宽度设计标准。研究表明,自动驾驶车辆的车距精确控制与车队化运行模式可提高道路通行能力,节约空间,提升慢行舒适性。城市干路条件下,自动驾驶车辆的横向摆动大幅缩小,2.85~3.05 m的机动车道宽度即可满足自动驾驶车辆的行驶需求。研究成果可为城市道路规划设计提供参考。

The technical mode of autonomous vehicle is different from that of traditional vehicles,and the requirements for road design have also changed.To conduct in-depth research on the lanes width of urban roads under autonomous driving conditions,a comparative analysis was conducted between traditional vehicles and autonomous vehicles from the perspectives of vehicle dimensions,vehicle speed,and vehicle technical performance,in order to determine the design standards of urban roads lanes width suitable for autonomous vehicles.Research has shown that precise distance control and fleet operation mode of autonomous vehicles can improve road capacity,save space,and enhance slow driving comfort.Under conditions of urban trunk road,the lateral swing of autonomous vehicles is significantly reduced,and a width of 2.85-3.05 meters for vehicle lane can meet the driving needs of autonomous vehicles.The research results can provide reference for urban road planning and design.