山区弯道景观对行车安全影响的仿真  

Simulation of Landscape Impact on Driving Safety on Road Bends in Mountain Area

作　　者：杨志发[1] 宋玉林[2] 管欣[3] 李世武[1] 

机构地区：[1]吉林大学交通学院,吉林长春130022 [2]吉林大学珠海学院机电工程系,广东珠海519041 [3]吉林大学汽车动态模拟国家重点实验室,吉林长春130022

出　　处：《西南交通大学学报》2011年第4期651-656,共6页Journal of Southwest Jiaotong University

基　　金：国家自然科学基金青年基金资助项目(51008142);教育部博士点新教师基金资助项目(20090061120053);中央高校基本科研业务费专项资金资助项目(200903213)

摘　　要：为研究山区弯道景观对行车安全的影响,构建了仿真流程,研究了车辆横向滑移事故判断方法、驾驶员前方视野范围内障碍物或车辆产生方法、驾驶员视距计算及仿真车辆安全状态判断方法;用VB语言编写仿真程序,仿真分析了不同车速、弯道半径、景观位置对车辆运行安全性的影响.研究结果表明;设计车速为60 km/h且景观至路边距离相同时,大半径弯道较小半径弯道的危险概率减少约58%;曲率半径相同时,较高设计车速的道路景观对行车影响较小,中半径弯道设计车速为80 km/h较60 km/h的危险概率减少约33%.A simulation process was built to address the impact of landscapes on driving safety on road bends in mountain area.In the simulation,the judgment method of transverse slide accidents of vehicles,the generation method of obstacles or other vehicles within the front view of a driver,the calculation method of the sight distance of the driver,and the judgment method of the vehicle safety state are discussed in detail.Then,a simulation program written with VB language was used to analyze the impact of vehicle speed,bend radius and landscape position on the safety of vehicles.The results show that the risk probability of vehicles is reduced by about 58% on a large-radius bend than that on a small-radius bend when the two landscapes have the same distance from roadside and the road design speed is 60 km/h.With the same bend radius,the risk probability of vehicles in case of high road design speed was smaller than that in case of low one;for example,the risk probability is reduced by about 33% when the road design speed is increased from 80 to 60 km/h on a medium-radius bend.

关 键 词：道路交通工程 弯道景观 行车安全 仿真流程 

分 类 号：U461.91[机械工程—车辆工程]