An Evaluation Method for the Safety Level of Horizontal and Longitudinal Combination of Expressway in Mountainous Areas
A technology for expressways and mountainous areas, applied in the field of expressway evaluation, can solve the problems of not considering the severity of traffic accidents and the inability to evaluate the safety level of horizontal and vertical combination in mountainous areas, and achieve the effect of reducing potential safety hazards and other problems.
Active Publication Date: 2021-12-14
CHANGAN UNIV +1
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However, the above methods only consider whether there will be traffic accidents in the horizontal and vertical combined road sections, but they do not consider the severity of the traffic accidents, which will lead to the same evaluation results of the safety level of minor traffic accidents and serious traffic accidents, so it is impossible to evaluate the safety level of mountainous horizontal and vertical roads. Combined security level for specific and precise evaluation
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[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by persons of ordinary skill in the art without making creative efforts all belong to the protection scope of the present invention.
[0028] Such as figure 1 Shown, the evaluation method of the horizontal and vertical combination safety level of mountain expressway of the present invention, concrete steps are:
[0029] Step 1. Acquire accident data and road alignment information of mountainous expressways and perform preprocessing, mainly including traffic police record information, road plane information and road profile information;
[0030] Step 2. First, construct a single a...
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The present invention discloses a method for evaluating the safety level of horizontal and vertical combination of expressways in mountainous areas. (4) Determine the risk index of each horizontal and vertical combination; (5) Use Matlab to fill in the horizontal and vertical combination evaluation form; (6) Classify the risk index; (7) Evaluate the safety level of the horizontal and vertical combination; The invention introduces the concept of risk index, studies the safety level of horizontal and vertical combination of expressways in mountainous areas from the perspective of accident severity, obtains more accurate evaluation conclusions, and provides more specific technical references for designers.
Description
technical field [0001] The invention relates to an evaluation method for expressways in the transportation industry, in particular to an evaluation method for the safety level of horizontal and vertical combination of expressways in mountainous areas. Background technique [0002] At present, with the development of the national economy, the construction of expressways in our country is gradually increasing, and the mileage of traffic is increasing year by year, which plays a vital role in the strategic layout of my country's transportation. In recent years, the economically developed regions in the central and eastern regions of the country have densely distributed expressways, while the economically underdeveloped regions in the west and southwestern regions have less mileage of expressways. [0003] However, due to the differences in natural conditions, especially topographic and geological conditions, in the eastern and western regions of my country, the difficulty of ex...
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IPC IPC(8): G06Q10/06G06F17/18G08G1/01
CPCG06F17/18G06Q10/0635G08G1/0129G08G1/0137
Inventor 张驰白杰王博贺九平富志鹏张宏张敏赵力国谢永淑李芷倩潘夏卓唐忠泽高艳阳刘昌赫白浩晨
Owner CHANGAN UNIV