The Comprehensive Research on Scheme Evaluation of Urban Expressway

This paper studies the evaluation system of urban expressway schemes. By comparing the most widely-used evaluation methods, analytic hierarchy process method is selected to build the framework of the indexes system. After the classification and screening, technical indexes, economic indexes, construction indexes and environmental indexes are selected as the first grade containing second representative indexes. The methods to define and to quantify these qualitative evaluation indexes and determination of the weight of each index are studied in this paper. Next, the evaluation value is calculated by establish mathematical model with fuzzy evaluation method and gray correlation analysis method, so the optimal scheme can be gained by sorting analysis. Finally, an urban expressway of Nantong as an example is evaluated according this system to verify the correctness of this evaluation method. In general, the research presents a specific method of urban expressway scheme evaluation, quantifies each scheme into specific value in order to make comparison easy, and provides a reference for future evaluation.