Toward Disaster‐Resilient Cities: Characterizing Resilience of Infrastructure Systems with Expert Judgments
- 23 October 2013
- journal article
- Published by Wiley in Risk Analysis
- Vol. 34 (3), 416-434
- https://doi.org/10.1111/risa.12133
Abstract
Resilient infrastructure systems are essential for cities to withstand and rapidly recover from natural and human-induced disasters, yet electric power, transportation, and other infrastructures are highly vulnerable and interdependent. New approaches for characterizing the resilience of sets of infrastructure systems are urgently needed, at community and regional scales. This article develops a practical approach for analysts to characterize a community's infrastructure vulnerability and resilience in disasters. It addresses key challenges of incomplete incentives, partial information, and few opportunities for learning. The approach is demonstrated for Metro Vancouver, Canada, in the context of earthquake and flood risk. The methodological approach is practical and focuses on potential disruptions to infrastructure services. In spirit, it resembles probability elicitation with multiple experts; however, it elicits disruption and recovery over time, rather than uncertainties regarding system function at a given point in time. It develops information on regional infrastructure risk and engages infrastructure organizations in the process. Information sharing, iteration, and learning among the participants provide the basis for more informed estimates of infrastructure system robustness and recovery that incorporate the potential for interdependent failures after an extreme event. Results demonstrate the vital importance of cross-sectoral communication to develop shared understanding of regional infrastructure disruption in disasters. For Vancouver, specific results indicate that in a hypothetical M7.3 earthquake, virtually all infrastructures would suffer severe disruption of service in the immediate aftermath, with many experiencing moderate disruption two weeks afterward. Electric power, land transportation, and telecommunications are identified as core infrastructure sectors.Keywords
This publication has 50 references indexed in Scilit:
- Using Expert Judgments to Explore Robust Alternatives for Forest Management under Climate ChangeRisk Analysis, 2012
- Critical infrastructures at risk: A need for a new conceptual approach and extended analytical toolsReliability Engineering & System Safety, 2008
- Learning the Critical Infrastructure Interdependencies through an Ontology-Based Information SystemEnvironment and Planning B: Planning and Design, 2007
- Extreme Risk Analysis of Interdependent Economic and Infrastructure SectorsRisk Analysis, 2007
- Expert judgements on the response of the Atlantic meridional overturning circulation to climate changeClimatic Change, 2007
- Framing a new approach to critical infrastructure modelling and extreme eventsInternational Journal of Critical Infrastructures, 2005
- Consensus Building and Complex Adaptive SystemsJournal of the American Planning Association, 1999
- Unleashing the Power of Planning to Create Disaster-Resistant CommunitiesJournal of the American Planning Association, 1999
- The Learning Region: Institutions, Innovation and Regional RenewalRegional Studies, 1997
- On The Quantitative Definition of RiskRisk Analysis, 1981