Resilience analysis of infrastructure systems in incremental design change

Disruptions to infrastructure systems can affect many facets of our daily life. Despite best efforts to design infrastructure systems that are resilient to disruptions, many systems are often modified over time to meet changing future needs. Hence, this paper presents a modelling method that aims to...

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Bibliographic Details
Published inComputers in industry Vol. 142; p. 103734
Main Author Koh, Edwin C.Y.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.11.2022
Subjects
Cascading failures
Complex systems
Design change
Infrastructure
Resilience
Infrastructure
Cascading failures
Design change
Complex systems
Resilience
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Summary:Disruptions to infrastructure systems can affect many facets of our daily life. Despite best efforts to design infrastructure systems that are resilient to disruptions, many systems are often modified over time to meet changing future needs. Hence, this paper presents a modelling method that aims to provide early estimates of system resilience in the redesign and extension of existing infrastructure systems. The method considers both direct and indirect functional dependencies between system entities and quantifies system resilience from a functional recovery perspective. A case study was carried out and the findings suggest that the method is feasible to support resilience analysis in the evaluation of design options during the incremental change of infrastructure systems. •The context of resilience analysis in early stage incremental design is established.•A modelling method that provides early estimates of system resilience is presented.•The method quantifies system resilience from a functional recovery perspective.•A case example on using resilience estimates in the evaluation of design options.
ISSN:0166-3615
1872-6194
DOI:10.1016/j.compind.2022.103734