公路覆水服役环境下弯坡路段车辆停车视距研究  

Vehicle Stopping Sight Distance in Curved Slope Section Under Highway Flooding Service Environment

作　　者：刘德敬 田毕江 李维东 高银钧 岳松 LIU Dejing;TIAN Bijiang;LI Weidong;GAO Yinjun;YUE Song(Yunnan Nanjing Expressway Co.Ltd.,Puer 676299,China;Broadvision Engineering Consultants Co.Ltd.,Kunming 650200,China;Yunnan Provincial Key Laboratory of Digital Communications,Kunming 650200,China;College of Transportation Engineering,Tongji University,Shanghai 201804,China)

机构地区：[1]云南南景高速公路有限公司,普洱676299 [2]云南省交通规划设计研究院有限公司,昆明650200 [3]云南省数字交通重点实验室,昆明650200 [4]同济大学交通运输工程学院,上海201804

出　　处：《武汉理工大学学报（交通科学与工程版）》2023年第5期812-816,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：云南省交通运输厅科技创新及示范项目(云交科教便[2021]6号);云南省交通运输厅科技创新及示范项目(2021-90-2);云南省数字交通重点实验室(202205AG070008)

摘　　要：文中融合公路路线参数、路面附着系数,以及水膜厚度检测数据,提出覆水弯坡路段路面行驶车辆行驶制动距离模型.在考虑一定安全系数的前提下,求解路面允许下施加给车辆的最大制动减速度,得到该制动减速度的制动距离,与传统车辆停车视距中车辆制动距离计算部分及车辆仿真试验结果进行对比.结合驾驶员的视认反应时间等因素,得到覆水弯坡路段路面行驶车辆停车视距以及跟车距离预警模型.Combining the road route parameters,road adhesion coefficient and water film thickness detection data,a braking distance model of road vehicles on curved slopes covered with water was proposed.On the premise of considering a certain safety factor,the maximum braking deceleration applied to the vehicle under the permission of the road surface was solved,and the braking distance of the braking deceleration was obtained.The calculation part of vehicle braking distance in traditional vehicle parking sight distance was compared with the results of vehicle simulation test.Combined with the driver's visual reaction time and other factors,the early warning model of stopping sight distance and following distance of vehicles on the road with curved slope covered with water was obtained.The research can provide reference for the calculation of stopping sight distance and the early warning of following distance of vehicles on all levels of highways in rainy weather.

关 键 词：交通 覆水路面 跟车距离 预警 

分 类 号：U461.91[机械工程—车辆工程]