Les risques-réseaux : une matrice des défaillances des réseaux urbains interdépendants

From a theoretical typology and empirical data derived from disaster events, this paper provides a matrix of cascading failures of interdependent infrastructures of energy, transport, telecommunications, water and sanitation, food systems and health services. High urbanisation has led to an expansio...

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Main Author: Nabil Touili
Format: Article
Language:English
Published: Société Royale Belge de Géographie and the Belgian National Committee of Geography 2022-05-01
Series:Belgeo
Subjects:
Online Access:http://journals.openedition.org/belgeo/54349
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author Nabil Touili
author_facet Nabil Touili
author_sort Nabil Touili
collection DOAJ
description From a theoretical typology and empirical data derived from disaster events, this paper provides a matrix of cascading failures of interdependent infrastructures of energy, transport, telecommunications, water and sanitation, food systems and health services. High urbanisation has led to an expansion of networked infrastructure, whose failures are notably related to their numerous and complex interdependencies. A prior identification of these interdependencies is fundamental to prevent cascading failure risks. This paper identifies four types of interdependencies (functional, geo-spatial, procedural and societal) and examines their respective roles in the failures experienced during the 2017 hurricanes Irma and Maria, the 2001 World Trade Center attack, the 2011 Fukushima disaster, the 2011 eruption of the Icelandic volcano Eyjafjallajökull, the 2003 heat wave and the 2012 Indian blackout. A cross-network matrix is thus developed to address the following question: through which type(s) of interdependencies does the initial failure of a given infrastructure network trigger failures in interdependent networks? Our deductive approach reveals network-risks and identifies the types of interdependencies by which infrastructure networks represent a hazard sources and/or a vulnerable stake to one another. Unidirectional, reciprocal and mutual dependencies are then underlined. Accordingly, the continuous supply of urban services is thus explored within the perspective of increasing interdependencies.
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spelling doaj.art-3be06828159442febadff5e01898e23e2022-12-22T00:56:33ZengSociété Royale Belge de Géographie and the Belgian National Committee of GeographyBelgeo2294-91352022-05-01110.4000/belgeo.54349Les risques-réseaux : une matrice des défaillances des réseaux urbains interdépendantsNabil TouiliFrom a theoretical typology and empirical data derived from disaster events, this paper provides a matrix of cascading failures of interdependent infrastructures of energy, transport, telecommunications, water and sanitation, food systems and health services. High urbanisation has led to an expansion of networked infrastructure, whose failures are notably related to their numerous and complex interdependencies. A prior identification of these interdependencies is fundamental to prevent cascading failure risks. This paper identifies four types of interdependencies (functional, geo-spatial, procedural and societal) and examines their respective roles in the failures experienced during the 2017 hurricanes Irma and Maria, the 2001 World Trade Center attack, the 2011 Fukushima disaster, the 2011 eruption of the Icelandic volcano Eyjafjallajökull, the 2003 heat wave and the 2012 Indian blackout. A cross-network matrix is thus developed to address the following question: through which type(s) of interdependencies does the initial failure of a given infrastructure network trigger failures in interdependent networks? Our deductive approach reveals network-risks and identifies the types of interdependencies by which infrastructure networks represent a hazard sources and/or a vulnerable stake to one another. Unidirectional, reciprocal and mutual dependencies are then underlined. Accordingly, the continuous supply of urban services is thus explored within the perspective of increasing interdependencies.http://journals.openedition.org/belgeo/54349infrastructuresurban networksinterdependenciesdisruptionsnetwork-risksurban resilience
spellingShingle Nabil Touili
Les risques-réseaux : une matrice des défaillances des réseaux urbains interdépendants
Belgeo
infrastructures
urban networks
interdependencies
disruptions
network-risks
urban resilience
title Les risques-réseaux : une matrice des défaillances des réseaux urbains interdépendants
title_full Les risques-réseaux : une matrice des défaillances des réseaux urbains interdépendants
title_fullStr Les risques-réseaux : une matrice des défaillances des réseaux urbains interdépendants
title_full_unstemmed Les risques-réseaux : une matrice des défaillances des réseaux urbains interdépendants
title_short Les risques-réseaux : une matrice des défaillances des réseaux urbains interdépendants
title_sort les risques reseaux une matrice des defaillances des reseaux urbains interdependants
topic infrastructures
urban networks
interdependencies
disruptions
network-risks
urban resilience
url http://journals.openedition.org/belgeo/54349
work_keys_str_mv AT nabiltouili lesrisquesreseauxunematricedesdefaillancesdesreseauxurbainsinterdependants