Evaluation and Optimization of Urban Public Space Accessibility for Residents’ Satisfaction: A Case Study of Nanshan District, Shenzhen City

In order to meet the people’s growing aspirations for a better life and to improve the efficient supply capacity of the citizens’ diversified needs, our government has made the optimization of the supply of public services in urban communities a key task in urban planning and construction and has taken the community living circle as a starting point to make up for the short boards of urban public services, which is of great practical significance in improving the quality of urban life and optimizing the spatial structure of the city. As an important carrier of urban residents’ public life, urban public open space plays an indispensable role in improving the quality of life of urban residents. Accessibility is an important indicator to characterize the publicity and service level of a public open space. This study focuses on the construction of the community living circle, optimizing the GIS-based, Gaussian, two-part mobile search method to quantitatively calculate and evaluate the accessibility of a public open space within a 500 m walking distance for the residents in Nanshan District, Shenzhen. On this basis, social survey methods, including the questionnaire survey method via a field survey and the interview method, were used to conduct field research on the residents’ accessibility satisfaction. Comparing the differences and correlations between the two results, the deep-seated reasons affecting the residents’ accessibility satisfaction are explored at the levels of the construction system, management services, and structural layout and spatial design of the public open space, and targeted guiding countermeasures are put forward to guide the development and construction of public open space in the future.

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