基于行驶轨迹的道路出入口标线精细化设计

Refined Design of Road Entrance and Exit Line Markings Based on Driving Trajectory

在道路出入口经常发生车辆换道碾压实线的违章事件,严重时还导致交通事故的发生。本文以太原市玉门河南沿岸近西中环出入口为研究对象,测定了该出入口的物理尺寸,收集分析了车辆换道运行数据据,利用Matlab建立了基于车辆运行车速-行驶轨迹的换道轨迹模型,对该出入口的交通标线进行了精细化设计。Matlab、VISSIM仿真表明,考虑运行车速-行驶轨迹的标线设计更符合车辆的实际运行情况,可减少因设计不合理而造成车辆碾压实线的违章现象。研究表明,标线设计要结合道路物理结构、运行车速、车辆行驶轨迹等,具体问题具体分析,方能促进人、车、路的和谐发展。

At the entrances and exits of roads,there are often violations of vehicles changing lanes and crushing solid lines.In severe cases,traffic accidents occur.This article takes the entrance and exit near the west middle ring along the Yumen river south coast in Taiyuan City as the research object,measures the physical size of the entrance and exit,collects and analyzes vehicle lane-changing data,and uses Matlab to establish a lane-changing trajectory model based on vehicle speed-trajectory.The traffic line markings at the entrance and exit are refined design.Matlab and VISSIM simulations show that the design of the line markings considering the running speed-trajectory is more in line with the actual operating conditions of the vehicle,and can reduce the violation of the vehicle rolling over the solid line due to the unreasonable design.Studies have shown that the design of road line markings must combine the physical structure of the road,running speeds,and vehicle trajectories,and analyze specific issues in order to promote the harmonious development of people,vehicles,and roads.