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

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  • Linggui Liu

    (School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China
    Technology Innovation Center for Land Engineering and Human Settlements, Shaanxi Land Engineering Construction Group Co., Ltd. and 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
    Technology Innovation Center for Land Engineering and Human Settlements, Shaanxi Land Engineering Construction Group Co., Ltd. and Xi’an Jiaotong University, Xi’an 710049, China)

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.

Suggested Citation

  • Linggui Liu & Han Lyu & Yi Zhao & Dian Zhou, 2022. "An Improved Two-Step Floating Catchment Area (2SFCA) Method for Measuring Spatial Accessibility to Elderly Care Facilities in Xi’an, China," IJERPH, MDPI, vol. 19(18), pages 1-15, September.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:18:p:11465-:d:912747
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    References listed on IDEAS

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    1. Weibull, Jorgen W., 1976. "An axiomatic approach to the measurement of accessibility," Regional Science and Urban Economics, Elsevier, vol. 6(4), pages 357-379, December.
    2. Sunwei Liu & Yupeng Wang & Dian Zhou & Yitong Kang, 2020. "Two-Step Floating Catchment Area Model-Based Evaluation of Community Care Facilities’ Spatial Accessibility in Xi’an, China," IJERPH, MDPI, vol. 17(14), pages 1-17, July.
    3. Yupeng Wang & Hiroatsu Fukuda, 2019. "Sustainable Urban Regeneration for Shrinking Cities: A Case from Japan," Sustainability, MDPI, vol. 11(5), pages 1-14, March.
    4. Kanuganti, Shalini & Sarkar, Ashoke Kumar & Singh, Ajit Pratap, 2016. "Evaluation of access to health care in rural areas using enhanced two-step floating catchment area (E2SFCA) method," Journal of Transport Geography, Elsevier, vol. 56(C), pages 45-52.
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