Accessible or usable? Social differentiation of activity-space-based accessibility and utilization of urban facilities in mixed housing neighbourhoods: A case study of Fuzhou, China

Keywords: activity-space-based accessibility,utilization,mixed housing neighborhoods,Fuzhou
Abstract Type: Virtual Paper Abstract

Abstract

Individual-based accessibility research has attracted increasing attention in social differentiation research field in recent years. Previous studies have measured individual accessibility to urban opportunities based on the analysis of residents' spatial and temporal behavior, such as activity space. However, the existing research has not paid much attention to the fact that the actual utilization of urban facilities by residents is likely to be accessible but not actually usable. In this study, typical mixed housing neighborhoods in Fuzhou is taken as research areas to examine the residents’ activity-space-based accessibility and utilization of urban facilities. First, the urban POI is scored by the analytic hierarchy process to obtain the weight value of each type of POI. Secondly, based on the survey data of residents' activity diaries, the method of standard deviation ellipse is used to generate individual activity space. Then, four indicators are constructed to measure the activity-space-based accessibility of public facilities of different housing groups, including the number of POI in the individual activity space, the number of POI in the 500m buffer zone outside the activity location, the distance from the activity location outside the home to the nearest public transport station, and the comprehensive score of POI in the activity space based on the weight of each type of POI. Then, based on the residents' activity diary data, we calculate the score of urban facilities that residents actually used. Finally, the linear mixed model is used to analyze the factors that influence residents’ utilization of urban facilities.