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Vulnerability assessment framework for interdependent critical infrastructures: case-study for Great Britain’s rail network

Vulnerability assessment framework for interdependent critical infrastructures: case-study for Great Britain’s rail network
Vulnerability assessment framework for interdependent critical infrastructures: case-study for Great Britain’s rail network
Critical infrastructures vulnerability assessment involves understanding various sociotechnological aspects of modern day infrastructures. While vulnerabilities exist at different scales, failures of large-scale installations in infrastructures are significant because they lead towards widespread social and economic disruptions. There is growing awareness of the multiple potential causes of failure, including those due to dependence upon other infrastructures. This paper establishes a framework for national analysis of vulnerability of interdependent infrastructures. We present: (i) A mathematical formulation of the vulnerability assessment; (ii) Network models for infrastructures that take in account the geographic, physical and operational characteristics of connecting nodes and edges; (iii) Interdependency mapping models that establish relationships between different subsystems within and across infrastructures; and (iv) Methods for implementing failure and disruption calculations. The methodology is demonstrated for Great Britain’s railway infrastructure, for which we have built detailed interdependency mappings between critical assets and infrastructures that support railway operations. Two key vulnerability assessment results, produced to examine failure impacts of such assets on railway passenger trip flows, include: (i) Random failure outcomes; and (ii) Flood vulnerability outcomes. The results show which critical infrastructure interdependencies potentially have large impacts on railway operations, providing a useful analysis tool for further risk and adaptation planning.
critical infrastructures, interdependencies, vulnerability assessment, railway networks, transport disruptions
1567-7141
174-194
Pant, Raghav
94945d21-e12e-40e6-bd96-f8fe85031997
Hall, Jim W.
493ab641-5e68-4cba-af1a-3a3aa774c1bf
Blainey, Simon P.
ee6198e5-1f89-4f9b-be8e-52cc10e8b3bb
Pant, Raghav
94945d21-e12e-40e6-bd96-f8fe85031997
Hall, Jim W.
493ab641-5e68-4cba-af1a-3a3aa774c1bf
Blainey, Simon P.
ee6198e5-1f89-4f9b-be8e-52cc10e8b3bb

Pant, Raghav, Hall, Jim W. and Blainey, Simon P. (2016) Vulnerability assessment framework for interdependent critical infrastructures: case-study for Great Britain’s rail network. European Journal of Transportation and Infrastructure Research, 16 (1), 174-194. (doi:10.18757/ejtir.2016.16.1.3120).

Record type: Article

Abstract

Critical infrastructures vulnerability assessment involves understanding various sociotechnological aspects of modern day infrastructures. While vulnerabilities exist at different scales, failures of large-scale installations in infrastructures are significant because they lead towards widespread social and economic disruptions. There is growing awareness of the multiple potential causes of failure, including those due to dependence upon other infrastructures. This paper establishes a framework for national analysis of vulnerability of interdependent infrastructures. We present: (i) A mathematical formulation of the vulnerability assessment; (ii) Network models for infrastructures that take in account the geographic, physical and operational characteristics of connecting nodes and edges; (iii) Interdependency mapping models that establish relationships between different subsystems within and across infrastructures; and (iv) Methods for implementing failure and disruption calculations. The methodology is demonstrated for Great Britain’s railway infrastructure, for which we have built detailed interdependency mappings between critical assets and infrastructures that support railway operations. Two key vulnerability assessment results, produced to examine failure impacts of such assets on railway passenger trip flows, include: (i) Random failure outcomes; and (ii) Flood vulnerability outcomes. The results show which critical infrastructure interdependencies potentially have large impacts on railway operations, providing a useful analysis tool for further risk and adaptation planning.

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Pant et al 2015 - Version of Record
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More information

Accepted/In Press date: 24 April 2015
e-pub ahead of print date: 1 January 2016
Published date: 4 January 2016
Keywords: critical infrastructures, interdependencies, vulnerability assessment, railway networks, transport disruptions
Organisations: Transportation Group

Identifiers

Local EPrints ID: 385442
URI: http://eprints.soton.ac.uk/id/eprint/385442
ISSN: 1567-7141
PURE UUID: 863146ce-6d04-4401-a3fb-f1f28068d714
ORCID for Simon P. Blainey: ORCID iD orcid.org/0000-0003-4249-8110

Catalogue record

Date deposited: 19 Jan 2016 16:53
Last modified: 13 Nov 2021 02:46

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Contributors

Author: Raghav Pant
Author: Jim W. Hall

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