横风作用下公路行车安全限速模型研究  

Research on Speed Limit Model for Driving Safety on Highway with Crosswind

作　　者：韩宝睿[1] 范伟康[1] 宋越[1] 刘柯利 

机构地区：[1]南京林业大学汽车与交通工程学院,南京市210037

出　　处：《公路》2015年第10期46-50,共5页Highway

基　　金：南京林业大学实验室项目;项目编号nlzzyq200321

摘　　要：在公路横风多发区域,因突发性及隐蔽性等特点,极易对车辆安全行驶造成威胁,常导致恶性交通事故。目前国内对横风多发路段汽车的行车安全限速研究相对较少,较难满足横风气象下的安全需求。此外,横风作用下,不同车辆抗风能力有很大差异,若能对大小车辆区别限速,则对交通管理以及安全信息发布都有积极的意义。文中根据道路行车安全分析理论及空气动力学理论,充分考虑大、小型车对横风的安全敏感阈值存在差异,分别建立不同条件下的安全限速模型,并通过Carsim/Trucksim等软件对模型计算结果进行仿真分析,以保证所建模型能够较为准确地反映横风作用下的汽车动态,最终能够较好地服务于横风行车安全预警系统。Crosswind is easy to threat the safe driving of vehicles and often leads to vicious traffic accidents because of its sudden and hidden occurrence,meanwhile,vehicles trend toward lightweight and high speed in China.So the impact of crosswind on vehicle safety is increasing steadily.But now there is little research on the speed limit model of vehicle safety on crosswind highway in domestic.In the meantime the facilities of warning system are so poor that it is hard to meet the safe requirements in crosswind condition.This paper is based on road safety analysis theory and aerodynamic theory,and the different results of safe sensitivity to crosswind are considered completely.So the models are established respectively under different conditions and the calculation results are simulated and analyzed through software Carsim and Truksim.By applying these programs,the model is able to reflect the dynamic state of vehicles in crosswind condition and serve the safety guidance warning system of vehicles.

关 键 词：交通安全 公路横风 限速模型 分车型 

分 类 号：U491.54[交通运输工程—交通运输规划与管理]