Multi-criteria grey-fuzzy comprehensive evaluation model of energy-saving and emission reduction:an empirical study on port and shipping system in China

摘要

Port and Shipping System(PSS),including port,shipping and related business,is an important part of the transportation industry and has a tremendous space and potential in energy-saving and emission reduction(ESER)aspects.In this paper,in accordance with the guidance and requirements of China's ESER policy,the evaluation index system and its weight were determined based on the method of analytic hierarchy process(AHP).Then,fuzzy comprehensive evaluation method was used to estimate for the effectiveness of ERES in PSS.Subsequently,the grey correlation analysis is used to rank the evaluation results from the Fuzzy-AHP method.Finally,PSS of a certain province was set as a case for empirical study.Consequently,a Multi-level Grey-Fuzzy comprehensive evaluation model was established for evaluating the effectiveness of ESER in PSS of China.The result shows that the Multi-level Grey-Fuzzy comprehensive evaluation model can solve the information loss and sequencing problems of the evaluation results,and make the results more objective and reasonable.Thus,the model can provide a guidance and reference for evaluating the ESER in PSS of China.