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: Global lessons for...

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 action

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
  • 2015
  • 2016
  • 2017

Flood Type

  • Coastal
  • Flash
  • River
  • Surface

Capitals

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4Rs

  • Robustness
  • Redundancy
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  • Rapidity

PERC Recommendations

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

Total: 127 results found

Provide better incentives to reduce risk.

We found very few incentives that would induce individuals orbusinesses to invest to reduce flood risk. Our research suggests that insurers could play an influential role inincentivizing risk reduction. There are several...

New technology should be used to generate flash flood hazard maps.

Intense precipitation and flash floods depend on certain spatial factors. New technology can be used to generate flash flood and (urban) surface flood maps. There are already successful examples of this approach used to ...

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 ...

Invest more in understanding and mapping small-scale processes.

Water is not the only reason for flooddamage. Particularly when it comes to small watercourses, better understanding is needed of how additionalprocesses contribute to the flood. Obstructions that can form at underpasses...

Prioritize risk reduction based on risk assessment. Don’t focus only on large waterways or arbitrary ‘return’ periods.

Germany’s current policies and decisions on flood protection focus mainly on large riversystems. Investments are made with a goal of protecting assets up to a level with a set period of return (typicallya one-in-100-ye...