铁道科学与工程学报2016，Vol.13Issue(12)：2522-2532,11.
大货车立交出口路段行车风险仿真分析
Driving risk si mulation analysis of lorriesat interchange exit section
摘要
Abstract
To study the driving safety of lorries at interchange exit section where the mainline is circular,dynamic model of vehicle,road model and drivers'aiming trajectory model were developed by multi-body dynamics simu-lation software Trucksim.The lorries were simulated in the working conditions by changing the super-elevations, speed and vehicle turning radius separately.The single factor analysis and multi-factor analysis were done re-spectively to reduce the number of tests.The vehicle lateral load transfer rate and the response output of critical adhesion coefficient were concluded.The influence of weather conditions and different factors on driving safety at the interchange exit was analyzed.And risk evaluation was analyzed quantized.Risk can be divided into low, high,very high.The results show that anti super-elevation may pose a serious threat to the safety at interchange exit.The risk is high when vehicles changing lane at a speed of 90 km/h and at the steering radius less than 400 m in the deceleration lane.When the vehicle operates at a speed of 90 km/h in rainy day,even if there is nosharp turn,side slip risk is also high.When vehicle is changing lane with the turning radius bigger than 600m, the length of transition section should be at least 120m to meet the driving requirement of the bad weather.关键词
交通工程/行车安全/动力学仿真/立交出口/风险分析Key words
traffic engineering/driving operation safety/dynamics simulation/exit of interchange/risk analysis分类
信息技术与安全科学引用本文复制引用
张驰,齐晨,华贵龙,刘园园..大货车立交出口路段行车风险仿真分析[J].铁道科学与工程学报,2016,13(12):2522-2532,11.基金项目
“十二五”国家科技支撑计划项目（2014BAG05B01）；教育部博士点基金新教师项目（20120205120013）；交通运输部应用基础研究项目（2014319812170）；中国博士后科学基金资助项目 （）
