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Defining isochrones in multimodal spatial networks


Gamper, Johann; Böhlen, Michael H; Cometti, Willi; Innerebner, Markus (2011). Defining isochrones in multimodal spatial networks. In: 20th ACM Conference on Information and Knowledge Management, Glasgow, UK, 24 October 2011 - 28 October 2011, 2381-2384.

Abstract

An isochrone in a spatial network is the minimal, possibly disconnected subgraph that covers all locations from where a query point is reachable within a given time span and by a given arrival time. In this paper we formally define isochrones for multimodal spatial networks with different transportation modes that can be discrete or continuous in, respectively, space and time. For the computation of isochrones we propose the multimodal incremental network expansion (MINE) algorithm, which is independent of the actual network size and depends only on the size of the isochrone. An empirical study using real-world data confirms the analytical results.

An isochrone in a spatial network is the minimal, possibly disconnected subgraph that covers all locations from where a query point is reachable within a given time span and by a given arrival time. In this paper we formally define isochrones for multimodal spatial networks with different transportation modes that can be discrete or continuous in, respectively, space and time. For the computation of isochrones we propose the multimodal incremental network expansion (MINE) algorithm, which is independent of the actual network size and depends only on the size of the isochrone. An empirical study using real-world data confirms the analytical results.

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Additional indexing

Item Type:Conference or Workshop Item (Paper), refereed, original work
Communities & Collections:03 Faculty of Economics > Department of Informatics
Dewey Decimal Classification:000 Computer science, knowledge & systems
Language:English
Event End Date:28 October 2011
Deposited On:10 Feb 2012 12:08
Last Modified:05 Apr 2016 15:27
Publisher:Association for Computing Machinery
Series Name:Proceedings of the 20th ACM international conference on Information and knowledge management
ISBN:978-1-4503-0717-8
Publisher DOI:10.1145/2063576.2063972
Related URLs:http://www.cikm2011.org/
Other Identification Number:merlin-id:6170
Permanent URL: http://doi.org/10.5167/uzh-56407

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