Influence Factors of Urban Public Space Vitality Based on Multi-source Data: A Case Study of Huangpu River Waterfront Area of Shanghai

Urban public open space is an important place for public life and social communication, and its vitality is the external embodiment of the urban space quality. Taking the Huangpu River waterfront area of Shanghai as an example, this research, by establishing a quantitative measurement method for public space vitality based on multi-source data, finds out the spatiotemporal variation characteristics of the waterfront space vitality along the Huangpu River, analyzes the impacts of various environmental factors on the vitality of waterfront public space, and determines the dominant influencing factors. The results of multiple linear regression analysis show that green space rate, public service facility density, cultural facility density, vehicle road network density, slow lane accessibility, surrounding commercial facilities density, surrounding permanent residential population density and surrounding scenic spot density have significant impacts on the vitality of waterfront public space. At last, it puts forward some planning and design suggestions to improve the vitality of urban waterfront space.