基于突变级数法的历史文化街区更新效益评价

Evaluation of the Renewal Benefits of Historical and Cultural Blocks Based on the Catastrophe Progression Method

为了对历史文化街区更新项目的效益进行全面综合评价,构建街区更新效益评价指标体系和改进的CRITIC法与突变级数法的混合模型,并采用得分变换法对评价结果进行改进。通过对吉庆历史文化街区的实证研究,验证该模型的合理性和有效性。研究表明,吉庆街区更新的综合效益大致表现为“总体平稳,略有下降,尚需提升”,并通过对评价结果的分析提出了效益提升的合理改进建议。

In order to comprehensively evaluate the benefits of historical and cultural block renewal projects,a block renewal benefit evaluation index system and an hybrid model of the improved CRITIC method and the catastrophe progression method were constructed,and the score transformation method was used to improve the evaluation results.Through the empirical research on Jiqing historical and cultural blocks,the rationality and effectiveness of the model are verified.The research shows that the comprehensive benefits of Jiqing block renewal project are roughly represented as"generally stable,with a slight decline,and still need to be improved",and reasonable improvement suggestions for benefit enhancement are put forward through the analysis of the evaluation results.