Vital nodes, interconnected infrastructures, and the geographies of network survivability

Anthony Grubesic, Alan T. Murray

Research output: Contribution to journalArticle

86 Citations (Scopus)

Abstract

With an increased level of interconnection between critical network infrastructures, the potential for cascading actions that trigger both primary and secondary network failures are of great concern. Recent events, including the 2001 attacks on the World Trade Center, the blackout of 14 August 2003, and the Galaxy IV satellite failure 1998, have reinforced the need for a more thorough understanding of vulnerabilities relative to system performance. This article explores the topological complexities associated with network interconnections. In particular, we evaluate the potential impacts of losing critical infrastructure elements that are geographically linked. The loss of vital nodes, like telecommunication switching centers, is evaluated utilizing a developed spatial optimization model. Results indicate that certain infrastructure topologies are not particularly well equipped to handle the loss of vital nodes, whereas others could withstand the loss of such nodes and maintain an adequate level of service.

Original languageEnglish (US)
Pages (from-to)64-83
Number of pages20
JournalAnnals of the Association of American Geographers
Volume96
Issue number1
DOIs
StatePublished - Mar 2006
Externally publishedYes

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infrastructure
interconnection
geography
World Trade Center
optimization model
telecommunication
world trade
topology
vulnerability
event
performance
loss
need
services

Keywords

  • Critical infrastructure
  • Reliability
  • Spatial analysis
  • Telecommunication

ASJC Scopus subject areas

  • Geography, Planning and Development

Cite this

Vital nodes, interconnected infrastructures, and the geographies of network survivability. / Grubesic, Anthony; Murray, Alan T.

In: Annals of the Association of American Geographers, Vol. 96, No. 1, 03.2006, p. 64-83.

Research output: Contribution to journalArticle

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