This dataset contains the boundaries at the different stages of the development of the PPRN. The characteristic of these perimeters is to be the consequence of an official act and to produce their eff
Area exposed to one or more hazards represented on the hazard map used for flood risk analysis. The hazard map is the result of hydraulic modelling carried out in 2018 by the hydratec design office, w
For natural PPRs, the Environmental Code defines two categories of zones (L562-1): risk-exposed areas and areas that are not directly exposed to risks but where measures can be foreseen to avoid exace
