Carandang, A M S; Garciano, L E O; Maruyama, O and De Jesus, R (2020) Proposed resilience index of water lifeline systems. International Journal of Disaster Resilience in the Built Environment, 12(3), pp. 253-264. ISSN 1759-5916
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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | horn’s algorithm; resilience curve resilience; restoration; restoration curve; water distribution network |
| Index terms: | restoration, sanitation, repair, water distribution network, methodology, slope, strategy, resourcefulness, disaster management, risk assessment, quantification, pipeline |
| Subjects: | sociology, measurement and scaling, geotechnical engineering, infrastructure and transport systems, environmental health, renovation and retrofit, management, research methods, maintenance engineering, financial risk |
| Topics: | Research Practice, Engineering Principles, Business Strategy, Cost Management, Sustainability |
| Descriptive scope: | 4 PCTA |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here