基于GIS的公共医疗设施空间可达性分析  

Spatial Accessibility Analysis of Public Medical Facilities Based on GIS

作　　者：张珊[1,2] 刘诗利[1] 朱宇鹏 ZHANG Shan

机构地区：[1]海南大学旅游学院,海南海口570200 [2]海南大学南海海洋资源利用国家重点实验室,海南海口570208 [3]海南超图科技有限公司,海南海口570202

出　　处：《地理空间信息》2019年第3期55-58,I0009,共5页Geospatial Information

基　　金：国家自然科学基金资助项目(41561111);海南省高等学校科学研究资助项目(Hnky2019-21)

摘　　要：基于空间和非空间视角,构建相关指标体系,对潜能模型和两步移动搜索法进行了改进;并以海口市为例,建立了交通网络数据集,计算分析了可达性。结果表明,海口市区海甸岛西部、秀英区西部、龙华区南部以及琼山区东南部等地区的医疗资源相对短缺。对比分析改进后的潜能模型和两步移动搜索法发现,后者不受行政区划边界限制,能体现医疗设施与居民点之间的相互作用力,但不能考虑阈值以外地区的居民就医可达性;前者比较综合地考虑了距离衰减规律和供需两方面因素,更符合实际情况。Based on the spatial and non-spatial perspectives,we constructed the relative index system,and improved the potential model and the two step mobile search method in this paper.And then,taking Haikou City for example,we set up the traffic network data set,and calculated the accessibility.The results show that medical resources’relative shortages exit in the west Haidiandao,the west Xiuying District,the south Longhua District and the southeast Qiongshan District.Compared the improved potential model with the two step search method,the latter is not affected by the administrative boundary restrictions and reflects the interaction between medical facilities and residential,but not considers the residents'accessibility outside the threshold.The former is more in line with the actual situation by considering the distance attenuation rule and supply and demand factors.

关 键 词：公共医疗服务 可达性 GIS 海口市 

分 类 号：P208[天文地球—地图制图学与地理信息工程]