A suite of global accessibility indicators
Good access to resources and opportunities is essential for sustainable development. Improving access, especially in rural areas, requires useful measures of current access to the locations where these resources and opportunities are found. Recent work has developed a global map of travel times to c...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Springer
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/105896 |
| _version_ | 1855514515600310272 |
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| author | Nelson, Andy Weiss, Daniel J. Etten, Jacob van Cattaneo, Andrea McMenomy, Teresa S. Koo, Jawoo |
| author_browse | Cattaneo, Andrea Etten, Jacob van Koo, Jawoo McMenomy, Teresa S. Nelson, Andy Weiss, Daniel J. |
| author_facet | Nelson, Andy Weiss, Daniel J. Etten, Jacob van Cattaneo, Andrea McMenomy, Teresa S. Koo, Jawoo |
| author_sort | Nelson, Andy |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Good access to resources and opportunities is essential for sustainable development. Improving access, especially in rural areas, requires useful measures of current access to the locations where these resources and opportunities are found. Recent work has developed a global map of travel times to cities with more than 50,000 people in the year 2015. However, the provision of resources and opportunities will differ across the broad spectrum of settlements that range from small towns to megacities, and access to this spectrum of settlement sizes should also be measured. Here we present a suite of nine global travel-time accessibility indicators for the year 2015, at approximately one-kilometre spatial resolution, for a range of settlement size classes. We validated the travel-time estimates against journey times from a Google driving directions application across 1,511 2° × 2° tiles representing 47,812 journeys. We observed very good agreement, though our estimates were more frequently shorter than those from the Google application with a median difference of −13.7 minutes and a median percentage difference of −16.9%. |
| format | Journal Article |
| id | CGSpace105896 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1058962025-11-12T05:37:26Z A suite of global accessibility indicators Nelson, Andy Weiss, Daniel J. Etten, Jacob van Cattaneo, Andrea McMenomy, Teresa S. Koo, Jawoo geography time towns urban areas resources services geographical information systems education information systems Good access to resources and opportunities is essential for sustainable development. Improving access, especially in rural areas, requires useful measures of current access to the locations where these resources and opportunities are found. Recent work has developed a global map of travel times to cities with more than 50,000 people in the year 2015. However, the provision of resources and opportunities will differ across the broad spectrum of settlements that range from small towns to megacities, and access to this spectrum of settlement sizes should also be measured. Here we present a suite of nine global travel-time accessibility indicators for the year 2015, at approximately one-kilometre spatial resolution, for a range of settlement size classes. We validated the travel-time estimates against journey times from a Google driving directions application across 1,511 2° × 2° tiles representing 47,812 journeys. We observed very good agreement, though our estimates were more frequently shorter than those from the Google application with a median difference of −13.7 minutes and a median percentage difference of −16.9%. 2019 2019-11-26T16:24:16Z 2019-11-26T16:24:16Z Journal Article https://hdl.handle.net/10568/105896 en Open Access application/pdf Springer Nelson, A.; Weiss, D.J.; van Etten, J.; Cattaneo, A.; McMenomy, T.S.; Koo, J. (2019) A suite of global accessibility indicators. Scientific Data 6: 266. ISSN: 2052-4463 |
| spellingShingle | geography time towns urban areas resources services geographical information systems education information systems Nelson, Andy Weiss, Daniel J. Etten, Jacob van Cattaneo, Andrea McMenomy, Teresa S. Koo, Jawoo A suite of global accessibility indicators |
| title | A suite of global accessibility indicators |
| title_full | A suite of global accessibility indicators |
| title_fullStr | A suite of global accessibility indicators |
| title_full_unstemmed | A suite of global accessibility indicators |
| title_short | A suite of global accessibility indicators |
| title_sort | suite of global accessibility indicators |
| topic | geography time towns urban areas resources services geographical information systems education information systems |
| url | https://hdl.handle.net/10568/105896 |
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