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Modelling potential movement in constrained travel environments using rough space-time prisms

Matthias Delafontaine (UGent) , Tijs Neutens (UGent) and Nico Van de Weghe (UGent)
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Abstract
The widespread adoption of location-aware technologies (LATs) has afforded analysts new opportunities for efficiently collecting trajectory data of moving individuals. These technologies enable measuring trajectories as a finite sample set of time-stamped locations. The uncertainty related to both finite sampling and measurement errors makes it often difficult to reconstruct and represent a trajectory followed by an individual in space-time. Time geography offers an interesting framework to deal with the potential path of an individual in between two sample locations. Although this potential path may be easily delineated for travels along networks, this will be less straightforward for more nonnetwork-constrained environments. Current models, however, have mostly concentrated on network environments on the one hand and do not account for the spatiotemporal uncertainties of input data on the other hand. This article simultaneously addresses both issues by developing a novel methodology to capture potential movement between uncertain space-time points in obstacle-constrained travel environments.
Keywords
obstacles, EUCLIDEAN SHORTEST PATHS, accessibility, uncertainty, time geography, space-time prism, MOVING-OBJECTS, INDIVIDUAL ACCESSIBILITY, UNCERTAINTY, GEOGRAPHY, ALGORITHM, LOCATION, PLANE

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Citation

Please use this url to cite or link to this publication:

Chicago
Delafontaine, Matthias, Tijs Neutens, and Nico Van de Weghe. 2011. “Modelling Potential Movement in Constrained Travel Environments Using Rough Space-time Prisms.” International Journal of Geographical Information Science 25 (9): 1389–1411.
APA
Delafontaine, M., Neutens, T., & Van de Weghe, N. (2011). Modelling potential movement in constrained travel environments using rough space-time prisms. INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE, 25(9), 1389–1411.
Vancouver
1.
Delafontaine M, Neutens T, Van de Weghe N. Modelling potential movement in constrained travel environments using rough space-time prisms. INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE. 2011;25(9):1389–411.
MLA
Delafontaine, Matthias, Tijs Neutens, and Nico Van de Weghe. “Modelling Potential Movement in Constrained Travel Environments Using Rough Space-time Prisms.” INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE 25.9 (2011): 1389–1411. Print.
@article{1993253,
  abstract     = {The widespread adoption of location-aware technologies (LATs) has afforded analysts new opportunities for efficiently collecting trajectory data of moving individuals. These technologies enable measuring trajectories as a finite sample set of time-stamped locations. The uncertainty related to both finite sampling and measurement errors makes it often difficult to reconstruct and represent a trajectory followed by an individual in space-time. Time geography offers an interesting framework to deal with the potential path of an individual in between two sample locations. Although this potential path may be easily delineated for travels along networks, this will be less straightforward for more nonnetwork-constrained environments. Current models, however, have mostly concentrated on network environments on the one hand and do not account for the spatiotemporal uncertainties of input data on the other hand. This article simultaneously addresses both issues by developing a novel methodology to capture potential movement between uncertain space-time points in obstacle-constrained travel environments.},
  author       = {Delafontaine, Matthias and Neutens, Tijs and Van de Weghe, Nico},
  issn         = {1365-8816},
  journal      = {INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE},
  keyword      = {obstacles,EUCLIDEAN SHORTEST PATHS,accessibility,uncertainty,time geography,space-time prism,MOVING-OBJECTS,INDIVIDUAL ACCESSIBILITY,UNCERTAINTY,GEOGRAPHY,ALGORITHM,LOCATION,PLANE},
  language     = {eng},
  number       = {9},
  pages        = {1389--1411},
  title        = {Modelling potential movement in constrained travel environments using rough space-time prisms},
  url          = {http://dx.doi.org/10.1080/13658816.2010.518571},
  volume       = {25},
  year         = {2011},
}

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