Plan for the prevention of foreseeable natural flood risks of the Loire du Val de Cisse in Indre-et-Loire, approved on 29/01/2001 - The PPRi is no longer in force since the approval of the revision of the PPRi on 16/05/2023
Description
The COVADIS data standard on risk prevention plans includes all technical and organisational specifications for the digital storage of spatial data represented in risk prevention plans (RPPs). Major risks include the eight main natural risks foreseeable on the national territory: floods, earthquakes, volcanic eruptions, land movements, coastal hazards, avalanches, forest fires, cyclones and storms, and four technological hazards: nuclear risk, industrial risk, the risk of transporting dangerous materials and the risk of dam failure.The risk prevention plans (PPR) were established by the law of 2 February 1995 on the strengthening of environmental protection. The PPR tool is part of the law of 22 July 1987 on the organization of civil security, the protection of the forest against fire and the prevention of major risks. The development of an RPP falls within the jurisdiction of the State. It is decided by the Prefect.Whether they are natural, technological or multi-hazard, risk prevention plans have similarities. They contain three categories of information:• Regulatory mapping results in a geographical delimitation of the territory concerned by the risk. This delimitation defines areas in which specific regulations apply. These regulations have the value of easements and impose requirements varying according to the level of hazard to which the area is exposed. The zones are represented on a zoning plan that fully covers the study area.• The hazards causing the risk are included in hazard documents that can be included in the presentation report or annexed to the RPP. These documents are used to map the different levels of intensity of each hazard taken into account in the risk prevention plan.• The issues identified during the development of the RPP can also be annexed to the approved document in the form of maps.These similarities between the different types of RPP and the desire to achieve a good level of standardization of RPP data have led COVADIS to opt for a single data standard, generic enough to deal with the different types of risk prevention plan (PPRN natural risk prevention plans, PPRT technological risk prevention plans).This data standard does not consist of a complete modelling of a risk prevention plan file. The scope of this document is limited to the geographic data contained in the RPPs, whether regulatory or non-regulatory in nature. The PPR standard is also not intended to standardize knowledge of hazards.The challenge is to have a description for a homogeneous storage of PPR geographical data because these data are of interest to several professions within the ministries in charge of agriculture, on the one hand, and ecology, and sustainable development, on the other hand.