An approach for identifying the limit states of resilience of a water supply system

Amarasinghe, Pradeep, Barnes, Paul H., Egodawatta, Prasanna, McGree, James, & Goonetilleke, Ashantha (2015) An approach for identifying the limit states of resilience of a water supply system. In Barnes, Paul H. & Goonetilleke, Ashantha (Eds.) Proceedings of the 9th Annual International Conference of the International Institute for Infrastructure Renewal and Reconstruction (8-10 July 2013), Queensland University of Technology, Brisbane, QLD, pp. 255-264.

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Abstract

This paper presents an approach for identifying the limit states of resilience in a water supply system when influenced by different types of pressure (disturbing) forces. Understanding of systemic resilience facilitates identification of the trigger points for early managerial action to avoid further loss of ability to provide satisfactory service availability when the ability to supply water is under pressure. The approach proposed here is to illustrate the usefulness of a surrogate measure of resilience depicted in a three dimensional space encompassing independent pressure factors. That enables visualisation of the transition of the system-state (resilience) between high to low resilience regions and acts as an early warning trigger for decision-making. The necessity of a surrogate measure arises as a means of linking resilience to the identified pressures as resilience cannot be measured directly. The basis for identifying the resilience surrogate and exploring the interconnected relationships within the complete system, is derived from a meta-system model consisting of three nested sub-systems representing the water catchment and reservoir; treatment plant; and the distribution system and end-users. This approach can be used as a framework for assessing levels of resilience in different infrastructure systems by identifying a surrogate measure and its relationship to relevant pressures acting on the system.

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ID Code: 61479
Item Type: Conference Paper
Refereed: Yes
Keywords: Crisis Management, Agile Decision-Making, High Reliability, Aviation Infrastructure, CEDM, Risk-informed Disaster Management: Planning for Response, Recovery and Resilience
ISBN: 9781921897733
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Infrastructure Engineering and Asset Management (090505)
Divisions: Current > Research Centres > Centre for Emergency & Disaster Management
Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Faculty of Health
Current > Schools > School of Mathematical Sciences
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Current > Schools > School of Public Health & Social Work
Copyright Owner: Copyright 2013 Please consult the authors
Deposited On: 22 Jul 2013 01:13
Last Modified: 10 Apr 2015 06:39

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