An enhanced two-step floating catchment area (E2SFCA) method for measuring spatial accessibility to primary care physicians

被引：817

作者：

Luo, Wei ^{[1
]}

Qi, Yi ^{[1
]}

机构：

[1] No Illinois Univ, Dept Geog, De Kalb, IL 60115 USA

来源：

HEALTH & PLACE | 2009年 / 15卷 / 04期

关键词：

Two-step floating catchment area; Spatial accessibility; Primary care physician shortage; Gravity model; GIS; HEALTH-CARE; INTEGRATED APPROACH; SERVICES; ACCESS; SHORTAGE; NEIGHBORHOODS;

D O I：

10.1016/j.healthplace.2009.06.002

中图分类号：

R1 [预防医学、卫生学];

学科分类号：

1004 ; 120402 ;

摘要：

This paper presents an enhancement of the two-step floating catchment area (2SFCA) method for measuring spatial accessibility, addressing the problem of uniform access within the catchment by applying weights to different travel time zones to account for distance decay. The enhancement is proved to be another special case of the gravity model. When applying this enhanced 2SFCA (E2SFCA) to measure the spatial access to primary care physicians in a study area in northern Illinois, we find that it reveals spatial accessibility pattern that is more consistent with intuition and delineates more spatially explicit health professional shortage areas. It is easy to implement in GIS and straightforward to interpret. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1100 / 1107

页数：8

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