快速路激进驾驶行为影响因素分析

Analysis of Factors Influencing Aggressive Driving Behavior on Expressways

以导航系统所采集的交通运行状态数据、驾驶行为数据为基础,结合网络资源和实际调研获取道路条件、天气情况和以指路标志为代表的交通设备数据,构建激进驾驶行为致因分析数据库,并应用结构方程模型深入挖掘快速路上驾驶人激进驾驶行为致因.结果表明,道路拥堵情况、天气条件、道路合流数、分流数、车道数、出口间距、预告次数、桥型标复杂度均能对激进驾驶行为发生频率造成显著影响,其中道路拥堵情况的影响程度最大,其次是指路标志和道路条件,天气条件的影响最小.为改善快速路激进驾驶频发的问题,首先需要鼓励错峰出行,缓解拥堵;道路设计过程中,根据实际情况考虑减少分流数、合流数、车道数,并适当扩大出口间距,避免在短距离内形成多个交织区;交通控制设施设计时,可尽量降低桥型标复杂度并减少预告标志,有助于驾驶人更好的理解信息;最后可充分利用导航系统的提示功能,根据不同天气条件针对性设计提示内容.研究基于导航数据分析激进驾驶行为影响因素的挖掘,进而实现了快速路的道路安全风险辨识,为改善交通安全、优化道路设计奠定了基础.

Based on the traffic operation status data and driving behavior data collected by the navigation system,combined with network resources and actual research to obtain road conditions,weather conditions and traffic equipment data represented by wayfinding signs,this study constructs a database for aggressive driving behavior analysis and applies structural equation modeling to deeply explore the causes of aggressive driving behavior of drivers on expressways.The results show that road congestion,weather conditions,number of merges,diverges,lanes,exit spacing,number of forecasts,and complexity of bridge markers can significantly affect the frequency of aggressive driving behavior,with road congestion having the greatest impact,followed by wayfinding signs and road conditions,and weather conditions having the least impact.In order to improve the problem of frequent aggressive driving on expressways,first of all,we need to encourage staggered travel to ease congestion;in the process of road design,consider reducing the number of diversions,merges and lanes according to the actual situation,and appropriately expand the exit spacing to avoid the formation of multiple intertwined areas within a short distance;when designing traffic control facilities,we can minimize the complexity of bridge markers and reduce the number of advance signs to help drivers better understand the information;finally,we can make full use of the prompting function of the navigation system and design the prompting content according to different weather conditions.The study is based on navigation data analysis of aggressive driving behavior influencing factors,and then realize the road safety risk identification of expressways,which lays the foundation for improving traffic safety and optimizing road design.