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Post-Event Review Capability

The Post-Event Review Capability (PERC) methodology was created by Zurich Insurance to provide research and independent reviews of large flood events. It seeks to answer questions related to aspects of flood resilience, flood risk management and catastrophe intervention. It looks at what went well, as well as opportunities for improvement, and results in a set of recommendations for the future.

Use this page to learn about the PERC methodology, read full PERC reports or find specific recommendations.

PERC Reports

Using PERC methodology

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The PERC manual

The PERC manual

The Post-Event Review Capability (PERC) is a systematic framework for the analysis of a disaster...

Zurich’s Post-Event Review Capability: Global lessons for reducing risk and increasing resilience

Zurich’s Post-Event Review Capability:...

Impacts from disasters are getting worse. Yet after a disaster, there is rarely time to learn what...

Houston and Hurricane Harvey: a call to action

Houston and Hurricane Harvey: a call to...

Hurricane Harvey made landfall near Rockport, Texas on August 25, 2017 as a Category 4 storm. Over...

 

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DRM Cycle

  • Coping
  • Corrective Risk Reduction
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  • Reconstruction

Theme

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Published Year

  • 2010
  • 2011
  • 2014
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  • 2016
  • 2017

Flood Type

  • Coastal
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  • River
  • Surface

Capitals

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4Rs

  • Robustness
  • Redundancy
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Physical

PERC Recommendations

Search all the PERC recommendations produced in all PERC reports. Refine your search using the criteria on the left.

Total: 43 results found

Analyze vulnerability so as to provide insights on ways to reduce risks in future

An existing flood wall is being reinforced, and other fixed protection added. The company is also considering adopting so-called ‘mobile’ protection that can go up quickly to protect key installations during floods....

Early warning systems need to be expanded to third order (seasonally flowing) rivers, with technological improvements to generate better forecasts from rainfall monitoring

DHM needs to improve its institutional capacity and expand its actions to monitoring rainfall monitoring and flood forecasting actions across the country in order to provide alerts to authorities for flood preparedness a...

Forecasting of local intense events should be improved.

Warnings, to be effective, require an end-to-endsystem integrated with forecasts. The current lead times for warnings of summer thunderstorms are too shortto allow people to take effective action. In the next five to 10 ...

Risk reduction requires a multifaceted approach; physical protection and land use planning.

Weirs andlevees do not provide absolute safety and often leave significant residual risk. They can also lull people into afalse sense of security and inadvertently increase risk in the long term. Residual risk that such ...

Following the floods of 2005 Switzerland significantly improved its flood protection and flood risk management structures.

Across cantons, the goal was to better harmonize the regulations governing the flow of the rivers and lake levels to achieve maximum protection where needed most, including in large towns along rivers....