Abstract
Different highway safety life protection engineering decision-making have important meaning. The achieving goals and optimal highway safety life protection engineering scheme can not only improve the function of the highway facilities and service level, still can reduce the traffic accident, which caused by the imperfect highway facilities. Different highway safety life protection engineering decision-making is a multiple targets, multi-layers and multi-schemes system evaluation problem. With regard to lack of concrete data on multiple targets, multi-layers and multi-schemes system evaluation problem, make analytical hierarchy process combined with the entropy value analysis into the grey relational comprehensive evaluation method, and then get entropy-hierarchical grey correlation analysis method. This method is a qualitative and quantitative decision method, which combine comparison principle of analytic hierarchy process (AHP) and the entropy principle of entropy value analysis method to determine the relative weight of various indexes between factors layer-by-layer. Then using grey relational analysis by low-layer to high-layer step by step in the possible scheme and referenced scheme. Finally, calculating the comprehensive correlation degree between the possible scheme and referenced scheme, the best plan which has maximum grey correlation degree can be selected.
Highlights
With the rapid development of the national economy, china's highway construction has entered a glorious development period; the road traffic safety situation is getting more and more serious
By analytic hierarchy process (AHP) method to analyze the weight vector of decision index, and further application of the entropy technology, they can make full use of decision matrix to provide information to correct the priority weights determined by decision maker, thereby helping to form the correct decision [19,20,21,22]
On the basis of determining a reasonable weight, the optimal scheme is determined by the method of multi hierarchies grey correlation analysis according to draw up an ideal reference sequence
Summary
With the rapid development of the national economy, china's highway construction has entered a glorious development period; the road traffic safety situation is getting more and more serious. Main methods of highway traffic safety evaluation in foreign countries are mostly established on the basis of a large number of traffic accident statistics to analysis for safety influence factors qualitatively [5]. It through the mathematical theory established quantitative relationship between the accident and affecting factors, so as to reflecting the level of road traffic safety. The evaluation methods of highway safety life protection engineering all have certain application scopes and defects [11,12,13,14,15,16].
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