Evaluation method for safety level of flat and vertical combinations of highway in mountain areas

Abstract

The invention discloses an evaluation method for a safety level of flat and vertical combinations of a highway in mountain areas. The method comprises the implementation processes of (1) searching andsorting materials and preprocessing the materials; (2) calculating and researching hazard indexes of a road section by use of a Matlab (Matrix laboratory); (3) dividing the flat and vertical combinations according to a road design speed; (4) determining the hazard index of each flat and vertical combination; (5) filling a flat and vertical combination evaluation form by use of the Matlab; (6) grading the hazard indexes; and (7) evaluating the safety level of the flat and vertical combinations. According to the evaluation method for the safety level of the flat and vertical combinations of thehighway in the mountain areas, the concept of the hazard indexes is introduced, the safety level of the flat and vertical combinations of the highway in the mountain areas is researched from the aspect of the severity degree of an accident to obtain an accurate evaluation conclusion, thereby providing a specific technical reference to a designer.

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...

AI Technical Summary

Problems solved by technology

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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