A Novel Performance Evaluation Framework for Sponge City Construction

As sponge city construction is gradually promoted globally, it is very important to construct a scientific and reasonable performance evaluation framework. This paper establishes an indicator system with 5 primary indicators and 15 secondary indicators, calculates subjective weights by fuzzy hierarchical analysis, determines objective weights by a projection tracing model, calculates comprehensive weights of indicators by combining game theory, and finally determines the city’s evaluation level based on the interval-counting multi-objective gray target decision-making model. Eleven typical sponge cities were selected for the case study analysis, which verified that the research framework of this paper can effectively deal with complex data and the reliability of the evaluation results, providing new ideas for the evaluation of sponge city construction performance. It also helps city managers to optimize the construction plan and resource allocation in a timely manner, thus enhancing the comprehensive benefits of the city and providing a scientific basis for the long-term development of sponge cities.