基于模糊评价的安全感知与车速相关性分析  

Relationship between driver safety cognition and vehicle speed based on fuzzy comprehensive evaluation

作　　者：张晖[1,2] 严新平[1,2] 高岩 吴超仲[1,2] 李平凡 

机构地区：[1]武汉理工大学智能交通系统研究中心,湖北武汉430063 [2]水路公路交通安全控制与装备教育部工程研究中心,湖北武汉430063 [3]公安部交通管理科学研究所,江苏无锡214151

出　　处：《江苏大学学报（自然科学版）》2011年第5期511-515,共5页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(60974094);国家"863"计划项目(2009AA11Z213);中央高校基本科研业务费专项基金资助项目(2010-Ⅱ-026)

摘　　要：为研究道路安全水平的主观认知对运行车速的影响,进行了实车试验,通过50份问卷调查确定了对安全影响权重较高的道路评价指标,随机选取719位驾驶人对试验路段的平曲线、竖曲线以及行车视距进行了主观评价,统计并建立了被试人员对行驶路段安全性的模糊综合评价模型,同时采集了驾驶人在各评价路段的运行车速值.研究结果表明:基于模糊综合评价方法所建立的驾驶人主观安全感知模型的道路安全水平评价结果与行车车速之间有较强的相关性,当驾驶人认为路段安全性较差时,会选择较低的车速值进行驾驶,以保证行车安全,反之则会提高运行车速;能够很好地模拟驾驶人根据自身的主观安全感知对行车车速进行选择的决策过程.To evaluate the effect of driver subjective cognition of highway safety level on vehicle speed,the real vehicle experiment was designed.Fifty drivers were invited to determine the weight of the highway parameters which is related to driving safety.Based on the subjective evaluation of 719 drivers on highway safety level of horizontal,vertical alignments and sight distance,the fuzzy comprehensive model of safety level was established,and the driving speeds at different section of evaluated highway were collected.The results show that the vehicle speed on each road section is closely related with the subjective cognition of road safety level which is based on the fuzzy comprehensive evaluation model.Considering the insecurity of next approach road section,the driver will decrease the speed to ensure safety.The evaluation model is effective for simulating the process that driver chooses safe speed based on safety degree of highway.

关 键 词：行车车速 主观认知 交通安全 模糊综合评价 实车试验 

分 类 号：U491.254[交通运输工程—交通运输规划与管理]