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Development of a hierarchical approach to analyse interdependent infrastructure system failures

Lookup NU author(s): Dr Sarah Dunn, Matthew Holmes

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Abstract

© 2019. Infrastructure systems underpin our modern communities, providing a platform for social and economic growth. Increasing urbanisation coupled with an increasing population means that these systems are continually expanding, becoming increasingly complex and interconnected. Therefore, a single infrastructure system now relies on other systems to maintain normal functionality. Whilst analysis methods exist to determine the impact of failures in single infrastructure systems, methods to analyse the impact of interdependence of infrastructure systems can be found lacking. Percolation theory is often used to assess failures in one system due to an initial failure in another connected systems. However, whilst this method has many mathematical applications, we show that it can give erroneous results when applied to model failure in infrastructure systems. In this paper, we propose a new method for the analysis of interdependent infrastructure systems which also accounts for their hierarchical structure.


Publication metadata

Author(s): Dunn S, Holmes M

Publication type: Article

Publication status: Published

Journal: Reliability Engineering and System Safety

Year: 2019

Volume: 191

Print publication date: 01/11/2019

Online publication date: 01/06/2019

Acceptance date: 30/05/2019

Date deposited: 24/06/2019

ISSN (print): 0951-8320

ISSN (electronic): 1879-0836

Publisher: Elsevier Ltd

URL: https://doi.org/10.1016/j.ress.2019.106530

DOI: 10.1016/j.ress.2019.106530


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