The transit-oriented development (TOD) and arts and culture-led urban development (AUD) have been evolved as two of primary strategies for sustainable urban revitalization. Ex-ante sustainability evaluation has emerged as a crucial procedure in the field of urban renewal to prevent non-sustainable redevelopment projects. However, in the ex-ante evaluation of urban renewal projects, TOD and AUD have ambiguous indicators, imprecise weights, and undetermined evaluation methodologies. To fill these gaps, this work combines GIS, fuzzy theory, and decision-making trial and evaluation laboratory (DEMATEL) to build an ex-ante evaluation model for evaluating the sustainability potential of urban renewal projects. Three areas in Guangzhou that are undergoing reconstruction and development are used as empirical instances in this study. This study provides a hierarchical structure of the evaluation framework which contains three dimensions, five criteria, and twenty-seven indicators, and also obtains the influential relationships among five criteria. In the empirical scenario, the Guangzhou Steel New Town area (GSNT) is reflected in the large potential benefits in both directions (i.e., TOD and AUD). In contrast, the existing urban renewal development plan does not adequately utilize the potential of the Shiqiao (SQ) area. This study, therefore, proposes that to increase land-use efficiency and subsequently economic development, the SQ area should either start from the current conditions or adapt its current strategy to renewal. With the help of this study, local decision-makers may examine the viability of urban renewal initiatives and gauge the possibility for three crucial Guangzhou urban renewal areas to flourish sustainably. This study also offers a decision-base for prospective future improvement in response to the evaluation outcomes.
In recent years, with the development of ’China’s new urbanization, the “characteristic town movement” with the development of industrial economy first has brought problems to a large number of rural settlements, such as no cultural planning, no consumption of industry, and no soul. Then, in reality, there are still a large number of rural settlements under the planning of the upper-level local government, with the goal of developing into a characteristic town in the future. Therefore, this study believes that there is an urgent need to build a framework for evaluating the construction potential of rural settlements with sustainable characteristic towns. Not only that but also a decision analysis model should be provided for real-world empirical cases. This model needs to cover the assessment of the sustainable development potential of characteristic towns as the goal and the formulation of improvement strategies. This study combines the data collection of current characteristic town development rating reports, applies data exploration technology to extract core impact elements and obtain hierarchical decision rules, integrates expert domain knowledge with DEMATEL technology, and establishes an impact network relationship diagram between core impact elements. At the same time, the representative characteristic town cases are assessed for their sustainable development potential, and the modified VIKOR technique is applied to clarify the actual problems of the empirical cases, in an attempt to determine whether the development potential and development plan of the characteristic town meet the sustainable development needs from the pre-evaluation mechanism.
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