An Improved Two-Step Floating Catchment Area (2SFCA) Method for Measuring Spatial Accessibility to Elderly Care Facilities in Xi’an, China

Linggui Liu (), Han Lyu, Yi Zhao and Dian Zhou ()
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Linggui Liu: School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Han Lyu: School of Humanities and Social Science, Xi’an Jiaotong University, Xi’an 710049, China
Yi Zhao: School of Humanities and Social Science, Xi’an Jiaotong University, Xi’an 710049, China
Dian Zhou: School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China

IJERPH, 2022, vol. 19, issue 18, 1-15

Abstract: With the continuous aging of society, the demand among elderly citizens for care facilities is increasing. The accessibility of elderly care facilities is a significant indicator for evaluating whether the layout of urban elderly care facilities is reasonable, and research on the spatial accessibility of related facilities has become an important academic issue in recent years. In this paper, based on the lack of accurate measurement in calculating the spatial accessibility of existing elderly care facilities, we improve the mathematical model based on the two-step floating catchment area method (2SFCA) and introduce the probability function of the elderly population’s choice, taking into account the influence of institutional capacity and service quality. In terms of the catchment radius, the calculation accuracy is improved by using the shortest distance along the route combined with the real road network instead of choosing the Euclidean distance. In addition, specific travel thresholds are set for the travel characteristics of the elderly. An evaluation model of the accessibility of urban elderly care facilities is constructed with the help of ArcGIS software to evaluate and analyze the accessibility of the current layout of urban elderly care facilities in Xi’an, China. The results show that the improved 2SFCA model is more effective in evaluating the spatial accessibility of elderly care facilities and has higher accuracy than the previous calculation model, which provides a methodological basis and academic reference for the specific planning of urban elderly care facilities.

Keywords: aging; elderly care facilities; accessibility; 2SFCA model; ArcGIS (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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