Aquitaine: Urban Spot 2012 — Dordogne Department

This layer n'' is not intended to be used to identify the PAU (Part currently to Urbanise). The urban task was carried out according to the methodology of CEREMA (Territorial Directorate of Territories and City ex CERTU), taking into account two parameters: expansion (D) and l'' erosion (E). It was carried out by CEREMA/Direction Territoriale Sud Ouest, in an automated manner (development of a tool) from the layers of the BDTopo. __Origin__ Made from BDTOPO ED141, aerial shooting DORDOGNE (PVA 2012). Use of layers BATI_INDIFFERENCIE, BATI_INDUSTRIEL, TERRAIN_SPORT, CIMETIERE, BATI_REMARQUABLE, RESERVOIR, PISTE_AERODROME, CONSTRUCTION_SURFACIQUE, CONSTRUCTION_LEGERE, SURFACE_ROUTE (attributes 'Page' and 'Parking'), GARE, AIRE_TRIAGE, POSTE_TRANSFORMATION. The implementation of urban tasks is based on the principle of: — the creation of buffer of the value ''Dilatation'' around each object, — of l'' assembling these buffers — d'a reduction in value ''Erosion''. Like Dilatation = Erosion, the urban stain tangent objects on the periphery. All these actions are automated in PostGIS. L' 50 m erosion is that proposed by the CEREMA method (ex CERTU). However, in some uses (identification of n°#x27;' habitat dispersed in rural areas), a lower erosion (20 m) would have seemed more suitable, but was not achieved. It should be noted that at the departmental limit, there may be side effects due to the failure to take into account the buildings of the neighbouring departments. __Partner organisations__ DDT Haute-Garonne, DREAL Nouvelle-Aquitaine/MiCAT/PIG __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-337b8edb-6c25-469b-ab15-55418f5b8b90) [See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/13c14f89c945be3160b359aeb6d084f2209689ab)