Map visualisation service (WMS) of the dataset: PPRT ADISSEO-TOURMALINE de Saint-Clair-du-Rhône approved on 18-07-2018

Risk Prevention Plans (RPPs) are the key tool of the state for risk prevention. Their objective is to control development in areas at risk. The development of a risk prevention plan generates a series of geographical data organised into several datasets. The same PPR may include spatial datasets containing: • main encompassing PPR perimeters (prescription perimeter, regulated perimeter); • restricted areas of the plan once approved. RPP regulations generally distinguish between “building prohibition zones”, so-called “red zones”, where the hazard level is strong and the general rule is the prohibition on construction; “prescription zones”, known as “blue zones” where the hazard level is medium and projects are subject to requirements adapted to the type of issue and areas not directly exposed to risks but subject to prohibitions or prescriptions; • origins of risk, i.e. the entity of the real world which, through its presence, represents a potential risk. This entity may be characterised by a name, a reference to an external object or a geographical object locating the actual entity causing the risk. The data are of an informative nature, only the paper documents with the visa of the prefecture are authentic.