Abstract

Info

Title:: Comprehensive evaluation model for cross-section alternatives of main-auxiliary road base on Vague set

Author(s):: TU Sheng-wen; GUO Xiu-cheng; YAO Dong-qiang; School of Transportation, Southeast University, Nanjing 210096, Jiangsu, China

Keywords:: traffic engineering; evaluation model; Vague set; main-auxiliary road; weighted score function

Abstract:: For evaluating and decision-making on alternatives of the cross-section for main auxiliary road quantitatively and comprehensively, an evaluation model was established to test the performance of alternatives based on Vague set. Firstly, an evaluation index system was built from four aspects such as traffic function, natural condition, engineering economy and environmental impact, and the methods to convert measurement value of qualitative and quantitative index to Vague value were presented respectively. Then, the weighted score function was adopted to establish the comprehensive evaluation model to measure the performance of each alternative to satisfy the requirements of decision makers. Meanwhile, the linear programming model to obtain index weight was also put forward. Finally, the suggested model was applied to engineering practice of decision-making on the cross-section alternatives for reconstructing of the Ring Road in Nanjing. The results show that compared with the traditional fuzzy evaluation method, the proposed model can not only reflect the comprehensive quality of each alternative performance effectively and comprehensive evaluation values among alternatives, but also have clear distinction. Furthermore, the calculation process of the model is simple and convenient for practical application.