基于车轴图谱的城市道路汽车运行轨迹特性分析

为探究城市道路行车轨迹与路侧之间的横向距离对车辆运行的影响,提高驾驶员行车安全,在某市滨海路进行汽车运行轨迹样本采集试验,使用AxleLight RLU11系列路侧交通数据采集系统分车道采集试验路段汽车运行轨迹样本,利用SPSS Statistics对试验路段不同车道车辆运行轨迹样本进行数据处理,绘制不同行车道运行车辆横向距离的累积频率曲线,计算得到汽车运行轨迹与路侧的横向距离D85,通过绘制行驶车辆距路侧的横向距离直方图,得到不同车道的车辆分布规律。结果显示,驾驶员大多数偏向选择在内侧车道运行。根据试验路段内外2条车道车辆横向距离和运行轨迹特性,可为城市道路交通安全设施的设置提供理论依据,以期提高城市道路交通运行安全。

Analysis of Characteristics of Running Track in Urban Road based on Axle Map

In order to explore the influence of the lateral distance between the urban road driving trajectory and the road side on the vehicle operation,and improve the vehicle driving safety,the vehicle trajectory sample collection test was carried out in the straight line section of Binhai Road in Yantai City,using the AxleLight RLU11 series roadside traffic data acquisition system.The sample of the vehicle running track of the test section was collected by using the lanes.The SPSS statistics was used to process the data of the trajectory of the vehicles in different lanes of the test section,the cumulative frequency curve of the lateral distance of the vehicles running in different lanes was drawn,and the running track of the vehicle was calculated.The lateral distance D85 of the road side is plotted as the lateral distance histogram of the traveling vehicle from the road side,and the distribution law of the vehicles in different lanes is obtained.The result shows that most of the drivers prefer to operate in the inner lane.Based on the lateral distance and running trajectory of the two lanes inside and outside the test section,a theoretical basis is provided for the setting of traffic safety facilities of urban road,with a view to improving the safety of traffic operations of urban road.