Dataset information
Available languages
French
Keywords
passerelle-inspire, zones-a-risque-naturel, ppr, donnees-ouvertes, geoscientific-information, risque-zonages-risque-naturel
Dataset description
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- “zones d' prohibition to build”, so-called “red zones”, when the level of ' hazard is strong and the general rule is n°#x27; prohibition to build;2- “required areas”, known as “blue zones”, when the level of #x27; hazard is average and 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 operations could aggravate 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.
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- “zones d' prohibition to build”, so-called “red zones”, when the level of ' hazard is strong and the general rule is n°#x27; prohibition to build;2- “required areas”, known as “blue zones”, when the level of #x27; hazard is average and 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 operations could aggravate 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__
This geographical layer was made on the basis of the hydrological layer of the BD Topo supplemented by the digitisation of streams in continuous line on the Scan 25 and fed along the water by the expertise carried out by the environmental department of DDT and ONEMA.
Geographical data quality (topology coherence): good
Given quality awarded: good
Freshness of the data: good
__Partner organisations__
DDTM Somme
__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-3d069dde-c9d6-43aa-9817-c8bfeec88295)
[See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/48f28ce6629e7ea817bc380daa7d98002b47d5b4)
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