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Lookup NU author(s): Dr Sarah Dunn, Matthew Holmes
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 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.
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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