Estimates of recovery time, given estimated benefit of mitigation measures, if any. Scenarios will ideally have been for reviewed for thoroughness and plausibility by a 3rd and updated in last 18 months. This is more frequently than the reviews of hazards, above, as land use and development that may affect exposure and vulnerability happens on a faster time-scale. 2.1.3 Understanding of All critical assets are 5 Critical assets are identified As identified above, critical assets are – critical assets and the identified (see Essential 8) and systematically linked into equipment, facilities, infrastructure or linkages between these. and relationships between failure chains as applicable. The city computer systems/data that are critical to the them are identified in the has a retrofit and triage strategy that functioning of the city, maintenance of public form of potential allows it to prioritize upgrades and safety or disaster response. While many cities “failure chains”. This is used to repairs. will identify these, at least to some degree it is disaster plans and triage (se much rarer to identify how they are linked and essential 9) and also retrofits the chains” that may exist. 4 Critical assets and failure chains – “failure and upgrades to improve the are generally identified with some capability of the infrastructure minor gaps and omissions. A retrofit A failure chain is a set of linked failures to withstand disasters. and triage strategy exists but it may spanning critical assets in multiple also have gaps. infrastructure systems in the city. As an example loss of an electricity substation – may stop a water treatment plant from 3 = Critical assets and failure chains functioning; this may stop a hospital from identified to some degree but some functioning; and this in turn may mean that significant omissions; or much of the city’s kidney dialysis capability (say) is lost. This is a failure chain that spans 3 = Critical assets are identified but energy, water and healthcare systems. failure chains are not. No triage or strategy is therefore possible and retrofits are prioritized, if they happen at all, by individual city departments. 1 Identification of critical assets is – patchy at best significant gaps –
Estimates of recovery time, given estimated benefit of mitigation measures, if any. Scenarios will ideally have been for reviewed for thoroughness and plausibility by a 3rd and updated in last 18 months. This is more frequently than the reviews of hazards, above, as land use and development that may affect exposure and vulnerability happens on a faster time-scale. 2.1.3 Understanding of critical assets and the linkages between these. All critical assets are identified (see Essential 8) and relationships between them are identified in the form of potential “failure chains”. This is used to disaster plans and triage (se essential 9) and also retrofits and upgrades to improve the capability of the infrastructure to withstand disasters. 5 – Critical assets are identified and systematically linked into failure chains as applicable. The city has a retrofit and triage strategy that allows it to prioritize upgrades and repairs. 4 – Critical assets and failure chains are generally identified with some minor gaps and omissions. A retrofit and triage strategy exists but it may also have gaps. 3 = Critical assets and failure chains identified to some degree but some significant omissions; or 3 = Critical assets are identified but failure chains are not. No triage or strategy is therefore possible and retrofits are prioritized, if they happen at all, by individual city departments. 1 – Identification of critical assets is patchy at best – significant gaps As identified above, critical assets are equipment, facilities, infrastructure or computer systems/data that are critical to the functioning of the city, maintenance of public safety or disaster response. While many cities will identify these, at least to some degree it is much rarer to identify how they are linked and the “failure chains” that may exist. A failure chain is a set of linked failures spanning critical assets in multiple infrastructure systems in the city. As an example – loss of an electricity substation may stop a water treatment plant from functioning; this may stop a hospital from functioning; and this in turn may mean that much of the city’s kidney dialysis capability (say) is lost. This is a failure chain that spans energy, water and healthcare systems.
Resilience%20Scorecard%20Updated%20V2%20-%20April%2030th%202015.docx