Assessing the accessibility of urban green spaces in the central Wuhan based on geographic information system and remote sensing

Urban green space (UGS), as public services facilities that provide lots of outdoor space for people’s activities and exercise, has a significant impact on urban residents' social, psychological, and physical benefits. The reasonable distribution of the urban green space is of great significance for enhancing the overall well-being of urban dwellers. In this study, we selected Wuhan City center as a research area, extracted the spatial distribution information of urban green space, roads networks from high-resolution remote sensing images in 2019. The urban green space service situation in different travel modes, travel times, and parks types are subsequently calculated with a network analysis model in GIS. The results showed that the services area of urban green space in the city center of Wuhan was within a driving distance of 30 min, accounting for 70.38% of the total study area, and the use of high-resolution remote images spatial data can measure equity on a more precise scale.