Evaluation of the Development Benefits and Fairness of TOD in Megacities:A Case Study of Chengdu
Scientifically and reasonably evaluating the benefits and fairness of the TOD development in rail transit is conducive to promoting green and low-carbon travel and optimizing urban resource alloca-tion.Combining the objective element value and subjective perceptive value of station space,a three-di-mensional Node-Place-Perception benefit evaluation model is developed,and a TOD development benefits evaluation system with 6 categories and 29 indicators is constructed.Rail transit stations are divided into four categories,namely fully developed,moderately developed,underdeveloped,and unbalanced develop-ment.Based on the different social attributes of groups,including the difference in income level,age,and education level,this paper establishes a set of fairness assessment criteria,and discusses the heterogeneity of TOD development benefits and group distribution and the fairness of TOD to vulnerable groups by com-bining with the geographically weighted regression model.Taking the megacity of Chengdu as an exam-ple,the paper discusses the coordinated development of rail transit station space from the perspective of transportation,land,and people.The evaluation results show that the land development and construction of rail transit station space in Chengdu is relatively balanced,with preferable sensory comfort and fairness.Fi-nally,optimization strategy guidance is given for stations with different characteristics to support the de-tailed planning of TOD and promote the sustainable and high-quality development of rail transit.
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