动态停车视距模型研究及应用

发布时间：2018-07-05 16:38

本文选题：公路工程 + 动态停车视距　；参考：《公路》2015年11期

【摘要】：针对我国公路安全评价中停车视距检验只考虑路侧道路建筑设施或者跨线构造物等静态设施的现状,研究在公路弯道行车过程中由于道路平曲线曲率的存在而导致的相邻或者对向车道车辆遮挡驾驶员视线的情况,提出动态停车视距的概念。通过分析车辆实际行驶过程中的车辆位置、驾驶员视点位置、车身宽度、道路横断面宽度、圆曲线半径等因素,建立动态停车视距计算模型。并基于上述因素确定最不利和正常的驾驶情形,对双向四车道和双车道公路进行分类研究。根据《公路路线设计规范》(JTG D20-2006)中最小圆曲线半径的规定对各设计速度的公路动态停车视距进行安全评价,结果发现很多情况下不能满足安全行车的要求。最终,针对不同设计速度的公路提出最小圆曲线半径的建议值,并对不良路段提出安全改善措施。
[Abstract]:In view of the fact that in the evaluation of highway safety in our country parking sight inspection only considers the status quo of road side road construction facilities or static facilities such as cross-line structures, This paper studies the situation of blocking the driver's line of sight by adjacent or opposite driveway vehicles due to the existence of the curvature of the road flat curve in the driving process of the highway bend road, and puts forward the concept of dynamic stopping sight distance. Based on the analysis of vehicle position, driver's viewpoint position, body width, road cross-section width, radius of circular curve and so on, a dynamic parking horizon calculation model is established. Based on the above factors, the most unfavorable and normal driving conditions are determined, and the bidirectional four-lane and two-lane highways are classified. According to the minimum radius of circular curve in JTG D20-2006, the highway dynamic stop sight distance of each design speed is evaluated. The result shows that the requirement of safe driving can not be met in many cases. Finally, the minimum radius of circular curve is suggested for the highway with different design speed, and the safety improvement measures are put forward for the bad section.
【作者单位】：西安公路研究院;长安大学特殊地区公路工程教育部重点实验室;
【分类号】：U492.8;U412.3

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