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Matching road data of scales with an order of magnitude difference


Lüscher, Patrick; Burghardt, Dirk; Weibel, Robert (2007). Matching road data of scales with an order of magnitude difference. In: XXIII International Cartographic Conference, Moskau, 4 August 2007 - 10 August 2007, online.

Abstract

Nowadays often a multiplicity of different spatial datasets exists for the same area. In order to use and maintain these datasets effectively they have to be integrated into a multiple representation database (MRDB). In an MRDB, the objects within the different datasets that model the same real-world phenomenon can be linked with each other. When integrating existing datasets these links have to be created by means of automatic matching techniques. In this paper we describe such a matching technique for road data of scales with an order of magnitude difference. The process starts by selecting possible candidates for roads and nodes using a buffer. The candidates are filtered using semantic, geometric and topological information. The remaining node candidates are compared by means of geometric measures, and 1 : 1 links between nodes are created. The node links are converted into road links by a shortest path algorithm. The method has been implemented and successfully tested with data at the scales of 1 : 25.000 and 1 : 200.000.

Abstract

Nowadays often a multiplicity of different spatial datasets exists for the same area. In order to use and maintain these datasets effectively they have to be integrated into a multiple representation database (MRDB). In an MRDB, the objects within the different datasets that model the same real-world phenomenon can be linked with each other. When integrating existing datasets these links have to be created by means of automatic matching techniques. In this paper we describe such a matching technique for road data of scales with an order of magnitude difference. The process starts by selecting possible candidates for roads and nodes using a buffer. The candidates are filtered using semantic, geometric and topological information. The remaining node candidates are compared by means of geometric measures, and 1 : 1 links between nodes are created. The node links are converted into road links by a shortest path algorithm. The method has been implemented and successfully tested with data at the scales of 1 : 25.000 and 1 : 200.000.

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Additional indexing

Item Type:Conference or Workshop Item (Speech), not refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Geography
Dewey Decimal Classification:910 Geography & travel
Language:English
Event End Date:10 August 2007
Deposited On:25 Apr 2013 14:59
Last Modified:07 Dec 2017 21:05
Publisher:International Cartographic Association
Official URL:http://icaci.org/files/documents/ICC_proceedings/ICC2007/html/Proceedings.htm
Related URLs:http://icaci.org (Organisation)

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