Multi-Mode Huff-Based 2SFCA: Examining Geographical Accessibility to Food Outlets in Austin, Texas
The retail food environment draws much attention from scholars because it can shape individuals’ eating behaviors and health outcomes. Although much progress has been made, current retail food environment assessments mainly use simple food accessibility measures while overlooking the role of multipl...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | ISPRS International Journal of Geo-Information |
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| Online Access: | https://www.mdpi.com/2220-9964/11/11/579 |
| _version_ | 1827644431993405440 |
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| author | He Jin Yongmei Lu |
| author_facet | He Jin Yongmei Lu |
| author_sort | He Jin |
| collection | DOAJ |
| description | The retail food environment draws much attention from scholars because it can shape individuals’ eating behaviors and health outcomes. Although much progress has been made, current retail food environment assessments mainly use simple food accessibility measures while overlooking the role of multiple transportation modes. This research proposed a multiple-mode Huff-based Two-step Floating Catchment Area (2SFCA) method to measure geographical access to food outlets in Austin, Texas. The spatial accessibility score was calculated with low to high impedance coefficients. Our analyses revealed an urban core-and-peripheral disparity in spatial accessibility to food outlets. We also compared the proposed multiple-mode Huff-based 2SFCA with its single-mode counterpart using <i>t</i>-test and relative difference methods. The comparison illustrates that the difference between the two methods of calculating healthy and unhealthy food accessibility is significant when the impedance coefficient is set to be 1.4 and 1.5, respectively. Our proposed multi-mode Huff-based 2SFCA method accounts for the various transport means and the spatial heterogeneity in population demand for food services; this could support developing intervention strategies to target under-served healthy food areas and over-served unhealthy food areas. |
| first_indexed | 2024-03-09T18:18:31Z |
| format | Article |
| id | doaj.art-565fead5b9274c89a471d7f271092c43 |
| institution | Directory Open Access Journal |
| issn | 2220-9964 |
| language | English |
| last_indexed | 2024-03-09T18:18:31Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | ISPRS International Journal of Geo-Information |
| spelling | doaj.art-565fead5b9274c89a471d7f271092c432023-11-24T08:31:23ZengMDPI AGISPRS International Journal of Geo-Information2220-99642022-11-01111157910.3390/ijgi11110579Multi-Mode Huff-Based 2SFCA: Examining Geographical Accessibility to Food Outlets in Austin, TexasHe Jin0Yongmei Lu1School of Geosciences, University of South Florida, Tampa, FL 33620, USADepartment of Geography, Texas State University, San Marcos, TX 78666, USAThe retail food environment draws much attention from scholars because it can shape individuals’ eating behaviors and health outcomes. Although much progress has been made, current retail food environment assessments mainly use simple food accessibility measures while overlooking the role of multiple transportation modes. This research proposed a multiple-mode Huff-based Two-step Floating Catchment Area (2SFCA) method to measure geographical access to food outlets in Austin, Texas. The spatial accessibility score was calculated with low to high impedance coefficients. Our analyses revealed an urban core-and-peripheral disparity in spatial accessibility to food outlets. We also compared the proposed multiple-mode Huff-based 2SFCA with its single-mode counterpart using <i>t</i>-test and relative difference methods. The comparison illustrates that the difference between the two methods of calculating healthy and unhealthy food accessibility is significant when the impedance coefficient is set to be 1.4 and 1.5, respectively. Our proposed multi-mode Huff-based 2SFCA method accounts for the various transport means and the spatial heterogeneity in population demand for food services; this could support developing intervention strategies to target under-served healthy food areas and over-served unhealthy food areas.https://www.mdpi.com/2220-9964/11/11/579food access equalityfood environmenthuff-based 2SFCAmultiple transport modesspatial disparities |
| spellingShingle | He Jin Yongmei Lu Multi-Mode Huff-Based 2SFCA: Examining Geographical Accessibility to Food Outlets in Austin, Texas ISPRS International Journal of Geo-Information food access equality food environment huff-based 2SFCA multiple transport modes spatial disparities |
| title | Multi-Mode Huff-Based 2SFCA: Examining Geographical Accessibility to Food Outlets in Austin, Texas |
| title_full | Multi-Mode Huff-Based 2SFCA: Examining Geographical Accessibility to Food Outlets in Austin, Texas |
| title_fullStr | Multi-Mode Huff-Based 2SFCA: Examining Geographical Accessibility to Food Outlets in Austin, Texas |
| title_full_unstemmed | Multi-Mode Huff-Based 2SFCA: Examining Geographical Accessibility to Food Outlets in Austin, Texas |
| title_short | Multi-Mode Huff-Based 2SFCA: Examining Geographical Accessibility to Food Outlets in Austin, Texas |
| title_sort | multi mode huff based 2sfca examining geographical accessibility to food outlets in austin texas |
| topic | food access equality food environment huff-based 2SFCA multiple transport modes spatial disparities |
| url | https://www.mdpi.com/2220-9964/11/11/579 |
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