Proposed resilience index of water lifeline systems
International Journal of Disaster Resilience in the Built Environment
ISSN: 1759-5908
Article publication date: 2 October 2020
Issue publication date: 24 May 2021
Abstract
Purpose
Water distribution networks (WDNs) must deliver water to its customers 24/7. Disruption of this important service after a strong seismic event impedes post-disaster activities and poses health and sanitation problems. Hence, WDNs must be able to quickly restore services after the occurrence of a major seismic event. This ability to return the water service can be a metric for resilience. The purpose of this paper is to quantify the resilience by developing a framework that translates various restoration strategies into an improved resilience measure for a multisource WDN.
Design/methodology/approach
This paper used a quantitative risk assessment method in developing the framework for the resilience quantification of WDN. Prim’s algorithm, Horn’s algorithm and maximum slope method are used for the restoration analysis conducted in this study.
Findings
This paper provides resilience indices of the WDN for each repair scenarios. Then, the resilience indices are used to determine the most efficient and optimized repair scenario to restore the hypothetically damaged WDN owing to Level 1 and Level 2 seismic events.
Research limitations/implications
The developed framework of this study only focuses on the robustness, rapidity and resourcefulness properties of resilience.
Practical implications
This study aims to help the water district in the maintenance, repair and evaluation of WDN against seismic events. The results from the study can be used in preparing the disaster management plan of the local water district to repair possible pipelines. This study also serves as a starting point to more complex and comprehensive research about the resilience quantification of WDNs with the consideration of optimal restoration sequence in the future.
Originality/value
The developed framework in the resilience quantification of WDN is original, as it uses optimal restoration strategies to represent the rapidity property of resilience.
Keywords
Acknowledgements
The Engineering Research and Development for Technology and Department of Science and Technology in the Philippines are recognized for funding this study. Through the support of these agencies, this study was accomplished.
Citation
Carandang, A.M.S., Garciano, L.E.O., Maruyama, O. and De Jesus, R. (2021), "Proposed resilience index of water lifeline systems", International Journal of Disaster Resilience in the Built Environment, Vol. 12 No. 3, pp. 253-264. https://doi.org/10.1108/IJDRBE-04-2020-0030
Publisher
:Emerald Publishing Limited
Copyright © 2020, Emerald Publishing Limited