Integrating people and place: A density-based measure for assessing accessibility to opportunities
Mobile object analysis is a well-studied area of transportation and geographic information science (GIScience). Mobile objects may include people, animals, or vehicles. Time geography remains a key theoretical framework for understanding mobile objects' movement possibilities. Recent efforts ha...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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University of Minnesota
2014-07-01
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| Series: | Journal of Transport and Land Use |
| Subjects: | |
| Online Access: | https://www.jtlu.org/index.php/jtlu/article/view/417 |
| _version_ | 1831669381881397248 |
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| author | Mark W Horner Joni Downs |
| author_facet | Mark W Horner Joni Downs |
| author_sort | Mark W Horner |
| collection | DOAJ |
| description | Mobile object analysis is a well-studied area of transportation and geographic information science (GIScience). Mobile objects may include people, animals, or vehicles. Time geography remains a key theoretical framework for understanding mobile objects' movement possibilities. Recent efforts have sought to develop probabilistic methods of time geography by exploring questions of data uncertainty, spatial representation, and other limitations of classical approaches. Along these lines, work has blended time geography and kernel density estimation in order to delineate the probable locations of mobile objects in both continuous and discrete network space. This suite of techniques is known as time geographic density estimation (TGDE). The present paper explores a new direction for TGDE, namely the creation of a density-based accessibility measure for assessing mobile objects' potential for interacting with opportunity locations. As accessibility measures have also garnered widespread attention in the literature, the goal here is to understand the magnitude and nature of the opportunities a mobile object had access to, given known location points and a time budget for its movement. New accessibility measures are formulated and demonstrated with synthetic trip diary data. The implications of the new measures are discussed in the context of people-based vs. placed-based accessibility analyses. |
| first_indexed | 2024-12-19T22:58:12Z |
| format | Article |
| id | doaj.art-c5320d79c77d4f7a84473ab5934f6cc4 |
| institution | Directory Open Access Journal |
| issn | 1938-7849 |
| language | English |
| last_indexed | 2024-12-19T22:58:12Z |
| publishDate | 2014-07-01 |
| publisher | University of Minnesota |
| record_format | Article |
| series | Journal of Transport and Land Use |
| spelling | doaj.art-c5320d79c77d4f7a84473ab5934f6cc42022-12-21T20:02:35ZengUniversity of MinnesotaJournal of Transport and Land Use1938-78492014-07-017210.5198/jtlu.v7i2.417154Integrating people and place: A density-based measure for assessing accessibility to opportunitiesMark W Horner0Joni Downs1Florida State UniversityUniversity of South FloridaMobile object analysis is a well-studied area of transportation and geographic information science (GIScience). Mobile objects may include people, animals, or vehicles. Time geography remains a key theoretical framework for understanding mobile objects' movement possibilities. Recent efforts have sought to develop probabilistic methods of time geography by exploring questions of data uncertainty, spatial representation, and other limitations of classical approaches. Along these lines, work has blended time geography and kernel density estimation in order to delineate the probable locations of mobile objects in both continuous and discrete network space. This suite of techniques is known as time geographic density estimation (TGDE). The present paper explores a new direction for TGDE, namely the creation of a density-based accessibility measure for assessing mobile objects' potential for interacting with opportunity locations. As accessibility measures have also garnered widespread attention in the literature, the goal here is to understand the magnitude and nature of the opportunities a mobile object had access to, given known location points and a time budget for its movement. New accessibility measures are formulated and demonstrated with synthetic trip diary data. The implications of the new measures are discussed in the context of people-based vs. placed-based accessibility analyses.https://www.jtlu.org/index.php/jtlu/article/view/417TransportationAccessibilityMobile ObjectsGIS |
| spellingShingle | Mark W Horner Joni Downs Integrating people and place: A density-based measure for assessing accessibility to opportunities Journal of Transport and Land Use Transportation Accessibility Mobile Objects GIS |
| title | Integrating people and place: A density-based measure for assessing accessibility to opportunities |
| title_full | Integrating people and place: A density-based measure for assessing accessibility to opportunities |
| title_fullStr | Integrating people and place: A density-based measure for assessing accessibility to opportunities |
| title_full_unstemmed | Integrating people and place: A density-based measure for assessing accessibility to opportunities |
| title_short | Integrating people and place: A density-based measure for assessing accessibility to opportunities |
| title_sort | integrating people and place a density based measure for assessing accessibility to opportunities |
| topic | Transportation Accessibility Mobile Objects GIS |
| url | https://www.jtlu.org/index.php/jtlu/article/view/417 |
| work_keys_str_mv | AT markwhorner integratingpeopleandplaceadensitybasedmeasureforassessingaccessibilitytoopportunities AT jonidowns integratingpeopleandplaceadensitybasedmeasureforassessingaccessibilitytoopportunities |