Application and validation of gravity p-median model in facility location research

被引：0
|
作者：
Tao Z. [1 ,2 ]
Cheng Y. [1 ]
Dai T. [1 ]
Zheng Q. [1 ]
机构：
[1] School of Geography, Beijing Normal University, Beijing
[2] College of Urban and Environmental Science, Peking University, Beijing
来源：
Xitong Gongcheng Lilun yu Shijian/System Engineering Theory and Practice | 2016年 / 36卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Facility location-allocation; Gravity p-median model; Health care facility; P-median model;
D O I：
10.12011/1000-6788(2016)06-1600-09
中图分类号：
学科分类号：
摘要：
Location allocation modelling is an important method in facility location research. Among the various methods in location allocation modelling, the p-median model is the most widely used. However, one of the limitations of p-median model is its assumption that each demand point only accesses to the closest facility. The gravity p-median model makes an important improvement by assuming that the service users access to facilities depending on the distance and attraction of each facility. A consensus, however, has still not been reached among researchers. This study applies the gravity p-median model in the case study of health care facilities in Yanqing county, Beijing, and compares its results with the results of the p-median model, aiming to empirically test the actual validity and applicable cases of the gravity p-median model. The results show that the improvements made by gravity p-median model to p-median model are significant, especially when the attraction of facilities significantly varies. The two models are suitable for different scenarios. Researchers should choose a suitable model depending on the fully understanding of the utilization behavior of services. © 2016, Editorial Board of Journal of Systems Engineering Society of China. All right reserved.
引用
收藏
页码：1600 / 1608
页数：8
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