Modelling resilience in a water supply system : contrasting conditions of drought and flood

Barnes, Paul, Egodawatta, Prasanna, & Goonetilleke, Ashantha (2012) Modelling resilience in a water supply system : contrasting conditions of drought and flood. In Kakimoto, Ryuji & Yamada, Fumihiko (Eds.) 8th Annual Conference of International Institute for Inftrastructure, Renewal and Reconstruction : International Conference on Disaster Management(IIIRR 2012), 24-26 August 2012, Kumamoto, Japan.

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This paper presents an approach to modelling the resilience of a generic (potable) water supply system. The system is contextualized as a meta-system consisting of three subsystems to represent the natural catchment, the water treatment plant and the water distribution infrastructure for urban use. An abstract mathematical model of the meta-system is disaggregated progressively to form a cascade of equations forming a relational matrix of models. This allows the investigation of commonly implicit relationships between various operational components within the meta system, the in-depth understanding of specific system components and influential factors and the incorporation of explicit disturbances to explore system behaviour. Consequently, this will facilitate long-term decision making to achieve sustainable solutions for issues such as, meeting a growing demand or managing supply-side influences in the meta-system under diverse water availability regimes.

This approach is based on the hypothesis that the means to achieve resilient supply of water may be better managed by modelling the effects of changes at specific levels that have a direct or in some cases indirect impact on higher-order outcomes. Additionally, the proposed strategy allows the definition of approaches to combine disparate data sets to synthesise previously missing or incomplete higher-order information, a scientifically robust means to define and carry out meta-analyses using knowledge from diverse yet relatable disciplines relevant to different levels of the system and for enhancing the understanding of dependencies and inter-dependencies of variable factors at various levels across the meta-system. The proposed concept introduces an approach for modelling a complex infrastructure system as a meta system which consists of a combination of bio-ecological, technical and socio-technical subsystems.

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ID Code: 53408
Item Type: Conference Paper
Refereed: Yes
Additional Information: CD rom publication, paper B4-2
Keywords: climate change impacts, critical infrastructure, infrastructure resilience, resilience modelling, water supply systems, CEDM
ISBN: 9784990643409
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ENVIRONMENTAL ENGINEERING (090700) > Environmental Engineering Design (090701)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ENVIRONMENTAL ENGINEERING (090700) > Environmental Engineering Modelling (090702)
Divisions: Current > Research Centres > Centre for Emergency & Disaster Management
Current > Schools > School of Earth, Environmental & Biological Sciences
Current > QUT Faculties and Divisions > Faculty of Health
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Current > Schools > School of Public Health & Social Work
Copyright Owner: Copyright 2012 Kumamoto University
Deposited On: 30 Aug 2012 22:26
Last Modified: 05 Sep 2014 23:13

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