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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

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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

Intervention – Measures taken immediately before and during a flood event: Improving measurement and forecasting quality

Certain things need to be improved to help us better understand flooding. These include the accuracy of meteorological forecasting, and the measurement of precipitation and the subsequent analysis of how the precipi...

Flood risk reduction through natural retention and physical protection: Misplaced faith in mobile flood protection

Many people put faith in mobile flood protection, but these types of devices can only work under certain conditions. Believing that everything will ‘turn out fine’ if protection is put in place is a dangerous as...

Flood risk reduction through natural retention and physical protection: Flood protection for individual locations

For individuals, business-owners and entire communities, risk-averse behavior needs greater encouragement. We need better and more examples to demonstrate why pre-event mitigation and risk reduction is important and...

Flood risk reduction through natural retention and physical protection: The problem with residual risk and the ‘levee effect’

People generally have a poor understanding of residual risk. They tend to believe in the absolute safety of levees, dams, and other structures. Thus, it is common to see the value of assets ‘behind the wall’ increase...

Flood risk reduction through natural retention and physical protection:Include key infrastructure in planning

Critical infrastructure as well as locations with the potential for unacceptable secondary losses (resulting from contamination or other problems) need to be identified and assessed in terms of flood risks well befo...