Measuring the accessibility of emergency shelters based on an improved two-step floating catchment area model
The accessibility of emergency shelters is crucial for reducing casualties. Previous studies on the accessibility of emergency shelters have limitations in the refinement and comprehensiveness of supply and demand data. This study proposed a supply-demand optimized two-step floating catchment area m...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-08-01
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| Series: | International Journal of Digital Earth |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/17538947.2025.2479864 |
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| _version_ | 1849224330843521024 |
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| author | Yongyang Xu Chiyu Zhou Bin Hu |
| author_facet | Yongyang Xu Chiyu Zhou Bin Hu |
| author_sort | Yongyang Xu |
| collection | DOAJ |
| description | The accessibility of emergency shelters is crucial for reducing casualties. Previous studies on the accessibility of emergency shelters have limitations in the refinement and comprehensiveness of supply and demand data. This study proposed a supply-demand optimized two-step floating catchment area method (2SFCA). The improvements consisted of three main components: refining the spatial distribution of supply and demand data, improving the travel costs based on population density, and optimizing the method for choosing emergency shelters considering the public’s willingness. Experimental results confirmed the effectiveness of the proposed method in assessing the accessibility of the population near densely distributed areas with small emergency shelters. Additionally, the proposed method outperformed traditional methods in identifying areas with low accessibility within the research area of Beijing. |
| format | Article |
| id | doaj-art-e9206a2e6d8e4f3f823cab7ffea4ecc6 |
| institution | Kabale University |
| issn | 1753-8947 1753-8955 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | International Journal of Digital Earth |
| spelling | doaj-art-e9206a2e6d8e4f3f823cab7ffea4ecc62025-08-25T11:28:19ZengTaylor & Francis GroupInternational Journal of Digital Earth1753-89471753-89552025-08-0118110.1080/17538947.2025.2479864Measuring the accessibility of emergency shelters based on an improved two-step floating catchment area modelYongyang Xu0Chiyu Zhou1Bin Hu2Research Center of Beidou+ Industrial Development of Key Research Institute of Humanities and Social Sciences of Hubei Province, Hubei University of Science and Technology, Xianning, People’s Republic of ChinaSchool of Geographic Information Engineering, China University of Geosciences, Wuhan, People’s Republic of ChinaResearch Center of Beidou+ Industrial Development of Key Research Institute of Humanities and Social Sciences of Hubei Province, Hubei University of Science and Technology, Xianning, People’s Republic of ChinaThe accessibility of emergency shelters is crucial for reducing casualties. Previous studies on the accessibility of emergency shelters have limitations in the refinement and comprehensiveness of supply and demand data. This study proposed a supply-demand optimized two-step floating catchment area method (2SFCA). The improvements consisted of three main components: refining the spatial distribution of supply and demand data, improving the travel costs based on population density, and optimizing the method for choosing emergency shelters considering the public’s willingness. Experimental results confirmed the effectiveness of the proposed method in assessing the accessibility of the population near densely distributed areas with small emergency shelters. Additionally, the proposed method outperformed traditional methods in identifying areas with low accessibility within the research area of Beijing.https://www.tandfonline.com/doi/10.1080/17538947.2025.2479864Two-step floating catchment areaemergency sheltersupply-demand optimizationaccessibilitypublic willingness |
| spellingShingle | Yongyang Xu Chiyu Zhou Bin Hu Measuring the accessibility of emergency shelters based on an improved two-step floating catchment area model International Journal of Digital Earth Two-step floating catchment area emergency shelter supply-demand optimization accessibility public willingness |
| title | Measuring the accessibility of emergency shelters based on an improved two-step floating catchment area model |
| title_full | Measuring the accessibility of emergency shelters based on an improved two-step floating catchment area model |
| title_fullStr | Measuring the accessibility of emergency shelters based on an improved two-step floating catchment area model |
| title_full_unstemmed | Measuring the accessibility of emergency shelters based on an improved two-step floating catchment area model |
| title_short | Measuring the accessibility of emergency shelters based on an improved two-step floating catchment area model |
| title_sort | measuring the accessibility of emergency shelters based on an improved two step floating catchment area model |
| topic | Two-step floating catchment area emergency shelter supply-demand optimization accessibility public willingness |
| url | https://www.tandfonline.com/doi/10.1080/17538947.2025.2479864 |
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