Flood management is an increasingly emerging issue for metros associated with climate change and extreme weather. Most metros are expecting more frequent flooding events of greater severity in the future, and are thus interested in learning from each other on flood prevention and management. This study gathered information from 31 metros and looked into influential factors to flooding, velnerability assessment, and flood prevention and management initiatives.
Managing a flood is similar to incident management more widely. An operational response process starts an alert, an incident is declared, the situation is managed / water is contained, and operations are managed to prioritise safety, maintain service levels where possible, and keep customers informed.
Based on metros’ previous experiences with flooding, the study presented the key lessons learned by metros and their improvements for flood preparation and management. These cover the areas of infrastructure design, operational response, as well as maintenance and inspections.