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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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

High-resolution maps are needed for aid and rescue organizations.

Local knowledge is criticallyimportant for first responders and emergency teams. In the 2016 floods, especially in Bavaria, responders fromout of town had difficulty with existing maps that lacked certain information whe...

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 ...

To effectively communicate, the social context must be understood.

If flood awareness campaigns are tobe successful then they must communicate with their target audience effectively. For example, some stateshave identified the need to provide flood warnings in specific languages: In Bad...

Local, indigenous knowledge should be incorporated into future decisions.

A lot of indigenousknowledge, especially in rural areas, has been lost. This historic knowledge is very important. In low-lying areasin pre-alpine hills in southern Baden-Wu?rttemberg, historic buildings have strongly fo...

Improve understanding of return periods and flood probabilities.

A “100- year flood” is often mistakenly interpreted as a flood of a magnitude that will not occur again for another century. People need to understand that, in fact, it means that there is a 1 percent chance of a flo...