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Wiley InterScience | |||||||||||||||
  Transactions in GISVolume 12 Issue 1, Pages 61 - 82 Published Online: 3 Mar 2008 Journal compilation © 2010 Blackwell Publishing Ltd
Abstract | References | Full Text: HTML, PDF (Size: 2203K) | Related Articles | Citation Tracking  Research Article Identifying Critical Locations in a Spatial Network with Graph Theory Copyright Journal compilation © 2008 Blackwell Publishing Ltd KEYWORDS structural analysis of networks • critical locations • spatial networks • graph theory ABSTRACT
Effective management of infrastructural networks in the case of a crisis requires a prior analysis of the vulnerability of spatial networks and identification of critical locations where an interdiction would cause damage and disruption. This article presents a mathematical method for modelling the vulnerability risk of network elements which can be used for identification of critical locations in a spatial network. The method combines dual graph modelling with connectivity analysis and topological measures and has been tested on the street network of the Helsinki Metropolitan Area in Finland. Based on the results of this test the vulnerability risk of the network elements was experimentally defined. Further developments are currently under consideration for eventually developing a risk model not only for one but for a group of co-located spatial networks. | 
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