Hazard area of the Explosives Sèvres Atlantique PPRT in Deux-Sèvres

Area exposed to one or more hazards shown on the hazard map used for PPR risk analysis. The map d'random is the result of the study of hazards whose goal is to evaluate the intensity of each hazard at any point in the zone of study. The evaluation method is specific to each type of hazard. It leads to the delimitation of a set of zones on the perimeter d'study constituting a graduated zoning according to the level of l'aira. L' Assignment of'A level of{#x27;aira at a given point in the territory takes into account the probability of\#x27; occurrence of the dangerous phenomenon and its degree of Â#x27; intensity.For PPRTs the levels of ' hazard are determined effect by effect on maps by type of d’#x27; effects and overall according to an aggregate level on a synthesis map.All hazard zones represented on the hazard map are included. Areas protected by protective works must be represented (possibly specifically) because they are always considered to be subject to the hazard (case of rupture or d' inadequacy of l’' structure). These source data are not covered by this class of objects but by another standard dealing with the knowledge of hazards.Some areas of the perimeter of #x27;study are considered as “zones of null or insignificant hazard”. It is the areas where the hazard has been studied and is zero. These zones are not included in class d'objects and n'are not to be represented as zones d'aira. __Origin__ The tracks have been digitised at l' screen using the ORTHO© BD, SPOT satellite images or the SCAN25© (for a better visualisation of the terrain), in s' based on the information provided by the maps of the stations’ tracks and on the knowledge of the terrain. On the Swiss slope of Portes du Soleil, the tracks were picked up by GPS in 2010. The majority of the tracks were then validated on the ground thanks to a systematic course, at least visual of the tracks. The following ski areas n'have not been the subject of a field validation: Sixt-Fer-à-Cheval, Le Roc d'Inferno, Abondance, Les Houches, Bernex, Thollon-les-Mémises, Cordon, Les Brasses, Mont Saxonnex, Les Planards, Hirmentaz-Les Habères, Passy plain adoux, Les Grands Montes, Seythenex, le Semnoz, Romme sur Cluses, Le Reposoir, La Poya à Vallorcine. The quantitative attributes associated with geographical objects were calculated by the Qgis software. __Partner organisations__ DDT Deux-Sèvres __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-c85322a3-4118-4a8a-abfc-46d771dc2071) [See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/8c489627e3e034915723760fb61f905bb5ddd120)