FLOOD RESILIENCE  is defined as the capacity of a system, community or society potentially exposed to hazards, to adapt by resisting or changing in order to reach and maintain an acceptable level of functioning and structure. Resilience of flood-prone communities can be evaluated according to natural, physical, economic, institutional and social criteria.

A majority of assessment techniques is based on quantitative analysis. The urban system is considered through five dimensions: natural, physical, economical, social and institutional. Within each dimension the set of major indicators is chosen. The set of indicators or variables is taken as a substitute because it is very difficult to quantify resilience in relative terms. The indicators are chosen according to the following criteria: Sensitivity, Availability, Affordability and Relevance.

The method to evaluate the resilience at the city scale is a simplification of reality. The method is addressing the flooding processes in urban systems. Interconnection between natural, physical, economic, social and institutional system exist and their separation is arbitrary.

diederik WILLEMEN,
20 Feb 2017, 06:28