Elaboration d'un outil dynamique d'évaluation des dommages de crues sur l'ensemble de la région Ile-de-France

A dynamic tool to estimate flood damages in the Ile-de-France administrative region

Stratégis SA

Abstract

In 1990, a large study program has been initiated by "Les grands lacs de Seine" Institute to estimate the impact of existing dams and to calculate the profitability rate of new projects.

The content of this new stage of study is the design and the development of a decision making software to reduce flood damages in all the Ile de France administrative region.

This software helps to define a planning scenario, to launch an hydraulic simulation of flood, to calculate flood damages and to analyse the economic impact. Designed around a Geographic Information System (GIS), it can produce maps to analyse results at different scales from communal contours to region area.

A detailed relational database has been designed to manage the huge mass of infonnation collected along the 500 km of river and the 300 communes concerned.

This tool represents not only a simulation code but also a priceless information source on historic floods, local protections and vulnerable equipments.