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基于故障树的城市道路行车速度漂移致因分析

发表时间:2015-07-31  浏览量:1379  下载量:593
全部作者: 董永杰,陈雨人
作者单位: 同济大学交通运输工程学院;同济大学道路交通安全与环境教育部工程研究中心
摘 要: 为分析城市道路中行车速度的漂移致因,研究建立了道路视觉环境层级模型,分析视觉环境中信息量大小,据此建立以速度漂移为顶事件的故障树模型。对模型进行最小割集和结构重要度计算,定性分析对速度漂移影响较大的因素,选取城市道路进行实例分析,定性分析与定量计算速度漂移致因。结果表明,为使驾驶人保持与设计车速相接近的运行车速,应根据实际道路设施的结构重要度合理设置道路环境信息,保持速度稳定和道路环境的安全可靠。
关 键 词: 道路工程;速度漂移;故障树模型;视觉环境;结构重要度
Title: Causation analysis of urban road driving speed drift based on fault tree
Author: DONG Yongjie, CHEN Yuren
Organization: School of Transportation Engineering, Tongji University; Engineering Research Center of Road Traffic Safety and Environment, Ministry of Education, Tongji University
Abstract: In order to discern the cause of driving speed drift in urban road, a hierarchical model of road visual environment is established to analyze the amount of information of visual environment. Accordingly, the fault tree model is set up where speed drift is regarded as the top event. Minimal cut sets and structure importance of the model are calculated, and factors that have greater impact on speed drift are studied qualitatively. Based on a case study of urban road, the cause of driving speed is computed quantitatively. As can be seen from the result, environmental information should be set reasonably according to structure importance of actual road facilities so as to keep driving speed close, design speed and maintain steady speed and reliable road environment.
Key words: road works; speed drift; fault tree model; visual environment; structure importance
发表期数: 2015年7月第14期
引用格式: 董永杰,陈雨人. 基于故障树的城市道路行车速度漂移致因分析[J]. 中国科技论文在线精品论文,2015,8(14):1461-1468.
 
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