摘要
从运行车速的角度对公路交通安全性开展评价研究,通过采集道路断面单车速度,将相邻断面的单车运行速度差的85%位值作为安全性评价指标.通过引入模糊数学中隶属度的概念,建立了基于单车速度差的85%位值的道路安全性评价隶属函数,并确定了道路安全评价等级的划分标准,以评定道路的交通安全水平.以某山区公路车速调查数据为例,对该评价方法进行了验证.
Highway safety evaluation from the angel of operating speed is studied by gathering speed of each individual vehicle on cross sections,and using the 85th percentile value of speed differentials of individual drivers on successive sections as evaluation index.In this method of highway safety evaluation,the degree of membership in fuzzy mathematics is introduced to establish safety evaluation membership function based on speed difference,and the road safety level is assessed.Taking the gathered data of some m...
出处
《长沙交通学院学报》
2009年第1期91-95,共5页
Journal of Changsha Communications University
基金
湖南省交通科技项目(200640)
