山区高速公路交通安全分析与设施保障技术研究
发布时间：2018-10-16 19:43
【摘要】：山区高速公路沿线地质地形条件复杂，整体线形指标较差，且雨雾冰雪等恶劣天气多发，不利于行车安全，亟待科学有效的交通安全改善措施。本研究依托大广高速泰赣段、沪昆高速昌金段2964起事故统计数据，系统研究山区高速公路交通安全分析与设施功能提升理论方法、实用技术，旨在提高其整体安全水平和服务性能。 对事故数据进行挖掘，分析了事故分布特征，构建了道路几何线形指标与事故率间的统计关系模型。山区高速公路线形不良路段众多，，交通流复杂，大型货车比例大，车辆超速重载情况常见，在线形不良路段易引发冲出路外或追尾等严重事故。研究提出了山区高速公路线形一致性的评价三准则，即设计一致性、运行速度一致性、车辆动力性能一致性，确定了“好”、“可接受”、“差”三级标准。构建了山区高速公路交通安全水平评价的灰色聚类的方法，以泰赣高速为例进行了案例分析。 对比评述了常用事故多发点鉴别的方法，采用5种方法分析大广高速泰赣区间K2951 K2998段的事故分布状况，认定同时被4种及以上方法确定的30个路段为事故多发点段，并聚类为8个事故多发路段群，以诊断其成因。根据井睦高速的设计资料，构建了其几何线形指标(平曲线半径、平曲线转角、坡度)与亿车公里事故率间的统计关系模型，评估其建成投入运营期间的安全状况。 遵循“视觉诱导”、“视觉警示”、“触觉强制减速”、“事故防护”的安保工程设计思想，系统研究了视觉诱导设施、视觉警示设施、强制减速设施、路侧视域净区(直线段、曲线段、纵坡段)、防眩板、路侧防撞护栏及紧急避险车道的设置方法和技术要求，以便于车辆偏离正常行车道时引导和警示安全行车，并做好刹车失灵等突发事件时紧急避险及防护。以大广高速泰赣段K2965+971至K2976+571区间的连续长大下坡为研究对象，引入经验贝叶斯模型，对其安装振动减速标线进行了效能评价。 本研究相关成果可为山区高速公路的设计与运营管理提供一定技术支撑，对平原区等其它类型高速公路的安全保障同样有所借鉴和参考。
[Abstract]:The geological and topographic conditions along the highway in mountainous area are complex, the overall linear index is poor, and the severe weather, such as rain, fog and ice and snow, is frequent, which is not conducive to driving safety, so it is urgent to improve traffic safety scientifically and effectively. Based on the statistical data of 2964 accidents in Tai-Gan section of Daguang Expressway and Changjin Section of Hu-Kun Expressway, this study systematically studies the theoretical methods and practical techniques of highway traffic safety analysis and facility function upgrading in mountainous areas. Aims to improve its overall security level and service performance. In this paper, the accident data are mined, the distribution characteristics of accidents are analyzed, and the statistical relationship model between road geometric linear index and accident rate is established. There are many bad alignment sections of mountainous expressway, complicated traffic flow, large proportion of large trucks, overspeed and heavy load of vehicles, which can easily lead to serious accidents such as rushing out of the road or rear-end. In this paper, three criteria for evaluating alignment consistency of mountainous expressway are proposed, which are design consistency, speed consistency and vehicle dynamic performance consistency. The three criteria of "good", "acceptable" and "poor" are determined. This paper compares and comments on the methods of identifying common accident prone sites, analyzes the accident distribution of K2951 / K2998 section in Taigan section of Daguang high speed highway by 5 methods, and considers 30 sections determined by 4 or more methods to be accident prone sites. In order to diagnose the causes, the cluster is composed of 8 accident-prone road sections. Based on the design data of Jingmu high speed, the statistical relationship model between geometric linear index (radius of plane curve, angle of plane curve, slope) and accident rate of 100 million kilometers was established to evaluate the safety situation of the system during its completion and operation. Following the security engineering design idea of "visual guidance", "visual warning", "tactile forced deceleration" and "accident prevention", the paper systematically studied visual guidance facilities, visual warning facilities, forced deceleration facilities, The setting methods and technical requirements of road side visual area (straight line section, curve section, longitudinal slope section), anti-dizziness board, road side collision barrier and emergency escape lane, in order to guide and warn the vehicle to drive safely when deviating from the normal carriageway, And do a good job brake failure and other emergencies when the emergency risk avoidance and protection. Taking the continuous downhill between K2965 971 and K2976 571 in Taigan section of Daguang Expressway as the research object, an empirical Bayesian model is introduced to evaluate the effectiveness of the installation of vibration deceleration line. The results of this study can provide some technical support for the design and operation management of expressway in mountainous area, and can also be used for reference to other types of highway safety in plain area.
【学位授予单位】：长安大学
【学位级别】：博士
【学位授予年份】：2013
【分类号】：U492.8;U412.366
[Abstract]:The geological and topographic conditions along the highway in mountainous area are complex, the overall linear index is poor, and the severe weather, such as rain, fog and ice and snow, is frequent, which is not conducive to driving safety, so it is urgent to improve traffic safety scientifically and effectively. Based on the statistical data of 2964 accidents in Tai-Gan section of Daguang Expressway and Changjin Section of Hu-Kun Expressway, this study systematically studies the theoretical methods and practical techniques of highway traffic safety analysis and facility function upgrading in mountainous areas. Aims to improve its overall security level and service performance. In this paper, the accident data are mined, the distribution characteristics of accidents are analyzed, and the statistical relationship model between road geometric linear index and accident rate is established. There are many bad alignment sections of mountainous expressway, complicated traffic flow, large proportion of large trucks, overspeed and heavy load of vehicles, which can easily lead to serious accidents such as rushing out of the road or rear-end. In this paper, three criteria for evaluating alignment consistency of mountainous expressway are proposed, which are design consistency, speed consistency and vehicle dynamic performance consistency. The three criteria of "good", "acceptable" and "poor" are determined. This paper compares and comments on the methods of identifying common accident prone sites, analyzes the accident distribution of K2951 / K2998 section in Taigan section of Daguang high speed highway by 5 methods, and considers 30 sections determined by 4 or more methods to be accident prone sites. In order to diagnose the causes, the cluster is composed of 8 accident-prone road sections. Based on the design data of Jingmu high speed, the statistical relationship model between geometric linear index (radius of plane curve, angle of plane curve, slope) and accident rate of 100 million kilometers was established to evaluate the safety situation of the system during its completion and operation. Following the security engineering design idea of "visual guidance", "visual warning", "tactile forced deceleration" and "accident prevention", the paper systematically studied visual guidance facilities, visual warning facilities, forced deceleration facilities, The setting methods and technical requirements of road side visual area (straight line section, curve section, longitudinal slope section), anti-dizziness board, road side collision barrier and emergency escape lane, in order to guide and warn the vehicle to drive safely when deviating from the normal carriageway, And do a good job brake failure and other emergencies when the emergency risk avoidance and protection. Taking the continuous downhill between K2965 971 and K2976 571 in Taigan section of Daguang Expressway as the research object, an empirical Bayesian model is introduced to evaluate the effectiveness of the installation of vibration deceleration line. The results of this study can provide some technical support for the design and operation management of expressway in mountainous area, and can also be used for reference to other types of highway safety in plain area.
【学位授予单位】：长安大学
【学位级别】：博士
【学位授予年份】：2013
【分类号】：U492.8;U412.366
【参考文献】
相关期刊论文 前10条
1 胡江碧,刘t
本文编号：2275436
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