Restricted zone of a PPRN (PPRI de l’Huisne) in the department of Orne

For natural PPRs, the code of l'environment defines two categories of zones (L562-1): risk-exposed areas and areas that are not directly exposed to risks but on which measures can be foreseen to avoid d’#x27; aggravate the risk.Depending on the level of #x27; hazard, each zone is the subject of an opposable settlement. The regulations generally distinguish between three types of zones:1- the ‘zones d' prohibition of construction’, known as ‘red zones’, where the level of ' hazard is strong and the general rule is the prohibition on construction;2- ‘areas subject to requirements’, known as ‘blue zones’, where the level of #x27; hazard is average and the projects are subject to requirements adapted to the type of d' at stake;3- areas not directly exposed to risks but where constructions, structures, development or agricultural, forestry, artisanal, commercial or industrial activities could exacerbate risks or cause new ones, subject to prohibitions or requirements (see Article L562-1 of the Code de l' environment). The latter category is only applicable to natural PPRs. __Origin__ Thematic source: state of the heritage of the geographical data used in the port-to-know of l’'State Digitalised railways on the layer" sections of railways" from the BDTopo (RGE) __Partner organisations__ DDT Orne __Links annexes__ * [XML metadata view](http://ogc.geo-ide.developpement-durable.gouv.fr/csw/all-dataset?REQUEST=GetRecordById&SERVICE=CSW&VERSION=2.0.2&RESULTTYPE=results&elementSetName=full&TYPENAMES=gmd:MD_Metadata&OUTPUTSCHEMA=http://www.isotc211.org/2005/gmd&ID=fr-120066022-jdd-92060d4b-12cf-4fc6-91d0-8d0538fb42a0) * [COVADIS data standard: Railways generating easements T1](http://geostandards.developpement-durable.gouv.fr/afficherPageStandard.do?jeu=N_T1_GENERATEUR_SUP_L) [See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/4f16b0f35bc24bd26318c677ee1a2d15b46eecc9)