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 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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PERC Recommendations

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

Total: 97 results found

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....

Limits of our imagination

Planning for disaster often means implementing measures that would have helped in the last disaster. While learning from experience is critical, looking backward can often limit our imaginations as to what future disas...

Organizations and Safety Nets have Limits

This report documents the successes and failures of the disaster response system. It also points to the limits of these systems. In fact, any system, no matter how well designed, can never anticipate every scenario and...

Relationships & Connectivity

Running through the observations of nearly every person interviewed for this study was the fact that pre-established relationships greatly sped response and improved results. Social service agencies with prior experien...

Learning is Critical to Building Resilience

The Boulder County area experienced several important shocks and stresses in the years leading up to the flood; learning from those experiences helped when the flood came. The 1976 flood in the Big Thompson Canyon to t...