高速公路车辆行驶安全度评价模型研究  

Analysis of Traffic Safety Evaluation Model for Expressway

作　　者：赵圆[1] 姚红云[1] 闫冬梅[1] 龙东华[1] 

机构地区：[1]重庆交通大学交通运输学院,重庆400074

出　　处：《重庆交通大学学报（自然科学版）》2012年第4期846-851,共6页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：国家自然科学基金项目(51008321)

摘　　要：基于运动状态建立了高速公路车辆行驶安全度评分模型,可更加有效地实施实时交通预警。引进了一种新的速度离散度作为运动状态指标,分析了新定义的速度离散度与传统速度离散度-车速标准差之间的关系,表明两者有函数关系。在把新定义的速度离散度作为运动状态的基础上,加入了人、车、路、气候等因素,构成了驾驶员、车辆、车路、道路线形、气候、车辆行驶状态等6大指标,并筛选了各大指标下的子指标,建立了相应的评价指标体系。利用层次分析法计算各参数权重来构建模型,建立了总的车辆行驶安全度评分模型。实例验证表明:模型符合客观实际,具有一定的可行性。Highway traffic safety score model is established to more effectively carry out a real-time traffic warning.A new definition of the speed dispersion is introduced to analyze the relationship between the new definition of speed dispersion and conventional dispersion-standard deviation of speed,which indicates a function relationship between the two.Factors such as speed dispersion,driver,road,vehicle and climate,constitute six major indicators of the driver-vehicle-road-the road alignment-climate-vehicle status;the sub-indicators of the major indicators are selected;a corresponding evaluation index system is established.The weight of each parameter is calculated to build the model by AHP.After being verified by example,it is indicated that the model is in line with objective reality,therefore it has certain feasibility.

关 键 词：高速公路 速度离散度 层次分析法 安全评分模型 

分 类 号：U49[交通运输工程—交通运输规划与管理]