山区高速公路安全评价方法研究
发布时间：2018-12-31 19:07
【摘要】：面对日趋严峻的山区高速公路道路交通安全状况，，研究山区高速公路安全评价的方法有着非常重要的现实意义。本文从车辆运行车速、事故预测以及道路线形三方面入手探讨适合山区高速公路安全评价的方法。 《公路项目安全性评价指南》（下称“指南”）和美国交互式道路安全设计模型软件（IHSDM）的设计一致性评价模块（DCM）都建立了道路速度预测模型，并给出了基于运行车速的设计一致性评价方法。分析两个模型预测方式及存在的异同，并将其应用于山区高速公路设计一致性评价。应用结果表明：指南速度预测结果较DCM模块差，设计一致性评价结果存在分歧；两种方法均不能有效用于山区高速公路设计一致性安全评价，缺少针对性。 标定IHSDM的事故预测模型（CPM）用于山区高速公路事故预测。应用结果表明：CPM模块在山区高速公路的事故预测结果与实际调研结果差异较大，未能反映山区高速公路的事故特点；分析预测结果与调研结果差异大的原因。 分析常见道路线形因子与山区高速公路道路线形特征之间的关联。本文结合基于平曲线曲率变化率（CCR）延伸的三种评价标准，探讨在山区高速公路的实用性；结合平曲线半径与平均半径的比值（CRR）和单个平曲线路段平均纵坡坡度与按平曲线个数平均的坡度的比值（LSS，坡度取绝对值），研究两者作为道路线形因子对于评价山区高速公路的作用。应用结果表明：道路线形因子在山区高速公路安全评价方面的作用较小，应用效果不理想。
[Abstract]:In the face of the increasingly serious situation of highway traffic safety in mountainous area, it is of great practical significance to study the method of highway safety evaluation in mountainous area. This paper discusses the method of safety evaluation of expressway in mountainous area from three aspects of vehicle speed accident prediction and road alignment. The Highway Project Safety Evaluation Guide (hereinafter referred to as "the Guide") and the design consistency evaluation module (DCM) of the interactive road safety design model software (IHSDM) in the United States have established the road speed prediction model. The evaluation method of design consistency based on running speed is also given. The two models are analyzed and their similarities and differences are analyzed and applied to the evaluation of the consistency of highway design in mountainous areas. The application results show that the prediction result of guide speed is worse than that of DCM module, and the evaluation results of design consistency are different, and the two methods can not be effectively used in the safety evaluation of design consistency of highway design in mountain areas, and lack of pertinence. The accident prediction model (CPM), which is calibrated by IHSDM, is applied to the accident prediction of expressway in mountainous area. The application results show that the accident prediction results of CPM module in mountain expressway are different from the actual investigation results, and the accident characteristics of mountain expressway can not be reflected, and the reasons for the difference between the prediction results and the investigation results are analyzed. The relationship between common road alignment factors and road alignment characteristics of mountain expressway is analyzed. This paper discusses the practicability of highway in mountainous area based on three evaluation criteria based on (CCR) extension of flat curve curvature change rate. Combined with the ratio of radius of plane curve to average radius (CRR) and the ratio of average longitudinal slope gradient of single section of flat curve to the average gradient according to the number of flat curves (LSS, slope is taken as absolute value), This paper studies the role of both as road alignment factors in evaluating mountain expressway. The application results show that the road alignment factor has little effect on highway safety evaluation in mountainous area, and the application effect is not ideal.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：U492.8;U412.366
本文编号：2396993
[Abstract]:In the face of the increasingly serious situation of highway traffic safety in mountainous area, it is of great practical significance to study the method of highway safety evaluation in mountainous area. This paper discusses the method of safety evaluation of expressway in mountainous area from three aspects of vehicle speed accident prediction and road alignment. The Highway Project Safety Evaluation Guide (hereinafter referred to as "the Guide") and the design consistency evaluation module (DCM) of the interactive road safety design model software (IHSDM) in the United States have established the road speed prediction model. The evaluation method of design consistency based on running speed is also given. The two models are analyzed and their similarities and differences are analyzed and applied to the evaluation of the consistency of highway design in mountainous areas. The application results show that the prediction result of guide speed is worse than that of DCM module, and the evaluation results of design consistency are different, and the two methods can not be effectively used in the safety evaluation of design consistency of highway design in mountain areas, and lack of pertinence. The accident prediction model (CPM), which is calibrated by IHSDM, is applied to the accident prediction of expressway in mountainous area. The application results show that the accident prediction results of CPM module in mountain expressway are different from the actual investigation results, and the accident characteristics of mountain expressway can not be reflected, and the reasons for the difference between the prediction results and the investigation results are analyzed. The relationship between common road alignment factors and road alignment characteristics of mountain expressway is analyzed. This paper discusses the practicability of highway in mountainous area based on three evaluation criteria based on (CCR) extension of flat curve curvature change rate. Combined with the ratio of radius of plane curve to average radius (CRR) and the ratio of average longitudinal slope gradient of single section of flat curve to the average gradient according to the number of flat curves (LSS, slope is taken as absolute value), This paper studies the role of both as road alignment factors in evaluating mountain expressway. The application results show that the road alignment factor has little effect on highway safety evaluation in mountainous area, and the application effect is not ideal.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：U492.8;U412.366
【引证文献】
相关期刊论文 前1条
1 李占平;;公路设计的安全评价探究[J];科技创新与应用;2015年26期
相关硕士学位论文 前3条
1 王雷;新疆山区公路车辆驾驶人行车控速系统的研究—车速预测模型的建立[D];新疆农业大学;2015年
2 李勇兵;云南华丽高速公路路线方案综合优选研究[D];重庆交通大学;2015年
3 梁晓林;山区高速公路长下坡路段安全评价方法与实践[D];长安大学;2014年
本文编号：2396993
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