Accessibility Evaluation of Medical Facilities Based on the Improved Two-step Floating Catchment Area Method:A Case Study of Chang'an District in Xi'an
Medical facilities are an important component of the social public service system.A fair and open layout of medical facilities is conducive to promoting social progress and improving people's quality of life.Accessibility is an important indicator to evaluate whether the layout of medical facilities is reasonable.The study takes the medical facilities in Chang'an District of Xi'an as an example,introduces Improved 2SFCA,substitutes different search thresholds,observes the medical accessibility of each residential area,performs spatial interpolation analysis,and then uses the spatial autocorrelation method to explore the differences in regional accessibility aggregation.The results show that there are significant differences in the accessibility of medical facilities between regions and streets in Chang'an District.The accessibility of rural areas and more remote areas is generally low.Peak accessibility areas and local areas with concentrated medical facilities are spatially mismatched.Factors such as road traffic distance and population size have a greater impact on accessibility.Research has verified the feasibility of improved 2SFCA in accessibility evaluation,and a reasonable search radius threshold has been determined through comparative analysis of different search radius thresholds.Finally based on preliminary analysis,this paper puts forward targeted suggestions and prospects for accessibility research,hoping to provide a reference for the research on the fairness of medical facilities planning and layout.
medical facilitiesimproved 2SFCAaccessibilityChang'an District in Xi'an