The origin of risk characterises the real-world entity which, by its presence, represents a potential risk. This origin can be characterised by a name and, in some cases, a geographical object l' real entity to #x27; origin of risk. The location of the entity and the knowledge of the hazardous phenomenon are used to define the risk basins, the areas exposed to the risks that form the PPR.In the PPRTs, it represents the \#x27; the enclosure of the facility(s) classified for the protection of the {\#x27; environment (ICPE) to the #x27 rd; origin of the risk analysed and processed by the PPR. In the PPRT methodology, it is described as a grey area.
__Origin__
The geometry of PIG is constructed by the geometric aggregation of the polygons representing the municipalities concerned by this PIG.
__Partner organisations__
DDT Indre-et-Loire
__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-3ef67853-4deb-4cb9-ab3e-8cd506c6a43f)
* [COVADIS data standard: General interest programme](http://geostandards.developpement-durable.gouv.fr/afficherPageStandard.do?jeu=N_PIG_ZSUP)
[See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/9cc13f1ace1a41a0f1af4461df59df20197413f1)
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