公路直线路段行车轨迹研究  

Research of Vehicle Running Track in Highway Straight Section

作　　者：王云泽[1] 杨少伟[1,2] 潘兵宏[1,2] 

机构地区：[1]长安大学公路学院,陕西西安710064 [2]长安大学特殊地区公路工程教育部重点实验室,陕西西安710064

出　　处：《公路交通科技》2016年第2期111-119,共9页Journal of Highway and Transportation Research and Development

摘　　要：我国很多道路研究和设计方法都将公路直线路段的车辆行驶轨迹假设为道路中心线,针对这一问题对西安市三环绕城公路多处路况良好的直线路段进行调查,通过对车辆运行状况拍摄和实时速度测量,借助Virtualdub和Auto CAD软件通过等比换算得到车辆的运行速度以及相应的车辆横向位置。根据车道性质、道路设施对车道进行统一分类。根据驾驶员行为特征和车辆特性提出基于车辆前轮位置的研究方法。根据数理统计分析左右侧前轮距车道两侧标线的距离,分车道、分车型研究车辆的轮迹分布规律,发现不同车道和车型的车辆行驶轨迹呈现较大的差异。利用SPSS分析软件研究运行速度和车辆行驶轨迹之间的关系,结果证明:车辆的行车轨迹和运行速度有直接的关系;车辆类型造成的行车轨迹差异明显。The vehicle running track on highway straight section is assumed to be road midline in many road researches and design methods in China. In view of this problem,a few good straight sections in Xi＇an Third Ring Road are investigated. Based on photographing vehicle operating conditions and measuring real-time speed,the vehicle driving speed and lateral position are obtained though geometric conversion by means of Virtualdub and Auto CAD. According to lane property and road facilities,the lanes are classified collectively.The research method based on vehicle front wheels position is put forward on the basis of driver behavior characteristics and vehicle property. by applying the mathematical statistics,the distances between front wheels of vehicle and markings on road sides are analysed,the vehicle track distributions of different lanes and vehicle types are researched. It is found that there is great difference of running tracks in different lanes and vehicle types. The relationship between driving speed and running track is analyzed by SPSS. The result shows that（ 1） there is a direct relationship between running track and driving speed;（ 2） the difference of vehicle trajectories caused by vehicle type is obvious.

关 键 词：交通工程 行车轨迹 数理统计 行车道 侧向安全宽度 

分 类 号：U491.222[交通运输工程—交通运输规划与管理]