A global view on econometrics of prevention in connection with the Inondabilité method

Abstract

Vulnerability, as one of the two components of flood risk, at the level of each land-owner or -user in a flood-plain, is defined as an acceptable limit, expressed in terms of return period. In order to obtain a maximal fiability in vulnerability mapping and, then, in this of synthetic risk, this maximal risk has to be expressed in an objective way, from a global appreciation of his objectives, potentialities and restraints. From there, one can propose a methodology for making this limit explicit in relation with the submersion parameters, in order to apply it mainly to agricultural zones in a flood plain. Finally, other potentialities of economic evaluation for designing of preventive projects and for managing floodwaters are mentioned.