Opportunity
The resilience of the NZ built environment to natural hazards has historically focused on the robustness of individual physical assets (individual buildings, bridges etc), with less emphasis on an understanding of the dependencies between individual assets, as well as the performance of spatially-distributed infrastructure networks. The resilience of lifeline networks (electric power, transportation, telecommunications (ICT), potable water, stormwater/wastewater, and liquefied/gas fuels) and other distributed infrastructure (flood control networks) play a critical role in the ability of society to rapidly recover after a major disaster.
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System-level resilience methodology outputs will be based on local (or component) level quantification of vulnerabilities, and mechanistic models for the interactions between the components of the network system. Uncertainties in such analyses can be significant, and the developed models and their implementation will utilize the most recent concepts of explicit uncertainty quantification; spatial correlation of uncertainties in demand, capacity and post-disaster response; stochastic event sets for efficiently considering numerous probabilistic scenarios; and low-rank methods for sensitivity analysis.
Impact
Our goal is to develop an improved understanding of the resilience of spatially-distributed infrastructure networks to extreme natural hazards through new methodologies and application to New Zealand-specific critical infrastructure. In the face of New Zealand’s unique natural hazard environment, and based on engineering science evidence, this flagship will enable New Zealanders to anticipate critical infrastructure vulnerabilities, and protect and transform the built environment to support thriving communities. The impact of this Flagship will result from the robust quantification of infrastructure network resilience, and importantly, explicit insight into optimization of pre-disaster mitigation and post-disaster targeted repair strategies which will minimize the consequences of infrastructure network in-operability.
Current Projects
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16018 - Resilience of Distributed Transportation Infrastructure Workshop (Costello, Ranjitkar - UA)
16040 - Learning from Earthquake Induced Landslide Mechanisms (Brabhaharan, Mason - Opus)
16071 - Performance of the Telecommunication Network during the Canterbury Earthquake Sequence (Giovinazzi - UC, Nayyerloo - GNS, Esposito - ETH Zurich)
Monthly Meetings and Workshops
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- 7 June 2016 Webconference - Coordination of Distributed Infrastructure projects. Zoom link
- 11 July 2016 Webconference - Distributed Infrastructure Monthly Meeting
- 12 August 2016 Webconference - Distributed Infrastructure Monthly Meeting
Related Efforts
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- Resilience to Nature's Challenges National Science Challenge http://resiliencechallenge.nz/
- New Zealand Lifelines Committee and Regional Lifelines committees
- National Infrastructure Unit
- Determining Volcanic Risk in Auckland (DEVORA) http://www.devora.org.nz/
- Riskscape https://riskscape.niwa.co.nz/
Other Meetings
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Other Presentations
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Requests for Proposals
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- 2017 QuakeCoRE Collaboration Plan - This will be released mid/late-Sept following the 2016 QuakeCoRE Annual Meeting