摘要
系统分析了车辆与路面运营安全性的互动关系,得出路面抗滑性能是评价路面运营安全性的关键因素,构建了车辆与路面抗滑性能互动关系的量化评价指标:允许的纵向摩擦系数f_(TA)、允许的横向摩擦系数f_(SA)、期望的纵向摩擦系数f_(TR)和期望的横向摩擦系数(?)_(SR)、纵向和横向路面安全状态临界值Δf_S、Δf_T,并建立了一套安全性评价模型.通过对某国道二级公路路段的案例分析,对建立的模型与交通事故形态进一步校核,验证了建立模型的可行性.同时得出研究路段的安全临界值Δf=13.2,初步说明我国公路养护规范中对贯入式沥青路面摩擦系数的最小允许值偏低是导致车辆滑溜事故的一个重要原因.
By analyzing the safety interactive relation between vehicle and road surface use, it can be concluded that antislippery performance of road surface is a key factor for appraising safety of road surface use and six basic coefficient indexes have been put forward： Transit allow friction, Side allow friction, Transit require friction, Side require friction, Transit and Side safety state ＂standard value＂, a set safety model of road surface use is set up. By testing and comparing with traffic accident type of a case in a section of class Ⅱ of NH （national highway）, the road safety model of surface use is feasible and its coefficient of friction quantized standard △f= 13.2 which has been attained. It＇s higher than the minimum value of bituminous penetration macadam or gravel in highway maintenance specification. It is easy to lead traffic slip accident.
出处
《北京工业大学学报》
EI
CAS
CSCD
北大核心
2008年第7期743-749,共7页
Journal of Beijing University of Technology
基金
博士基金项目
世界银行项目(200607)
关键词
路面运营安全性
路面抗滑性能
路面摩擦力
允许摩擦系数
期望摩擦系数
交通事故
滑溜事故
road surface use safety
antislippery performance
friction force of road surface
coefficient of allow friction
coefficient of require friction
traffic accident
slippery accident
