Highway tunnel traffic accident risk evaluation method based on fuzzy analytic hierarchy process

Abstract

The invention discloses a highway tunnel traffic accident risk evaluation method based on fuzzy analytic hierarchy process. The method includes the following steps: formulating a plurality of evaluation indices to obtain an evaluation index domain, dividing a highway tunnel into three research sections, establishing respective index system for each research section; formulating a plurality of evaluation levels to obtain an evaluation level domain; separately computing the fuzzy degree of membership of respective evaluation index to respective evaluation level, constructing a degree of membership matrix; computing a weight vector of the evaluation indices; on the basis of the weight vector and the degree of membership matrix, synthesizing a comprehensive evaluation vector; computing a risk value, on the basis of the risk value, determining risk conditions. According to the invention, by using the fuzzy matrix and the application of the analytic hierarchy process to risk evaluation, the method can analyze respective uncertain factor and index that appear in the course of risk evaluation; by setting a first level index and a second level index, the method can consider from a multiple aspects and can deliver more comprehensive analysis by dividing the tunnel into three regions and make related talks, the method herein takes the minimum evaluation value as a final evaluation result. The evaluation is more much reasonable.

Description

technical field [0001] The invention relates to the technical field of tunnel risk assessment, in particular to a risk assessment method for expressway tunnel traffic accidents based on fuzzy hierarchy analysis. Background technique [0002] The construction of expressway tunnels in my country started relatively late, but has developed rapidly, especially in the construction of expressways in mountainous areas, and a large number of road tunnels have appeared. From the end of the last century to the present, the number of domestic road tunnels has increased sharply, and the scale is relatively long. Both of them are in the forefront of the world. , and is at an important stage of development. However, when a large number of highway tunnels were put into operation, the safety problem of tunnel operation became more and more serious. Therefore, according to the engineering characteristics of expressway tunnels, it is a work of great practical significance to conduct tunnel ope...

AI Technical Summary

Problems solved by technology

The advantage of the quantitative analysis method is that it can use intuitive data to objectively express the evaluation results, but in the process of quantification, it is easy to simplify and blur the complicated things

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