Buildings of Troyes Champagne Métropole

Description

Above-ground construction that is used to house humans, animals, objects, for the production of economic goods or for the provision of services and that refers to any structure built or erected permanently on its site. **Selection: Initially, the building selection thresholds were as follows:** • All buildings over 50 m2 are included. • Buildings between 20 and 50 m2 are selected according to their environment and appearance. • Buildings of less than 20 m2 are represented by a punctual construction class object if they are very high, or if they are specifically designated on the map at 1: 25 000 in progress (e.g. antenna, transformer...). After unification of the BDTOPO® with the BD PARCELLAIRE® All buildings present in the latest edition of the PARCELLAIRE® vector comic are included, except possibly buildings clearly destroyed since the date of validity of the PARCELLAIRE® comic. The small buildings of the PARCELLAIRE® DB that represent one-off constructions (e.g. transformers) or linear constructions (e.g. walls of ramparts) are captured with their respective initial modeling in BDTOPO®. There is no longer a minimum threshold for the area of buildings. However, if a new photogrammetric entry takes place after the unification phases of the building, the new buildings will not have the granularity of the PARCELLAIRE® DB. For restitution, the initial selection thresholds are then applied (buildings of more than 50 m2 and buildings of 20 to 50 m2 depending on their environment and appearance). **Geometric modeling:** Buildings from the PARCELLAIRE® comic book They are differentiated by the field 'Origin of the building' = ''Cadastre'' The external contour of the building taken from the BD PARCELLAIRE® is eventually transferred to the BDTOPO® building during the unification process. The initial orientation of the PARCELLAIRE® DB is generally retained, unless the rotation is too marked compared to the initial BDTOPO® data. The shape of the contour is taken from the ground. The polygon is flattened, i.e. the same roof elevation is assigned to each point of the unified building (such as a ‘shoe box’). BD PARCELLAIRE® buildings have a finer granularity than BDTOPO® buildings (cutting out plots, building extensions, etc.). As a result, what was only a BDTOPO® building is represented by several buildings after unification. For the list of variables, see pages 63 to 78 of the document "BD TOPO version 3.0 content description": https://geoservices.ign.fr/sites/default/files/2021-07/DC_BDTOPO_3-0.pdf INFORMATION: THE DATA GAME IS AVAILABLE IN THREE FORMATS (*.XLSX, *.CSV AND *.GPKG). THE NUMBER OF REGISTRATION IS IN THE ORDER OF: 107946

Resources

Name Format Description Link
54 https://www.data.gouv.fr/api/1/datasets/r/61416d11-87bb-4ea2-92f5-f4a1c9490f31
8 https://www.data.gouv.fr/api/1/datasets/r/bd706fb4-6197-433c-9813-0b94e0be8a5b
0 https://www.data.gouv.fr/api/1/datasets/r/34576cda-d29a-4de7-ba63-878c500f5d21
33 https://www.data.gouv.fr/api/1/datasets/r/e243c18d-c0b2-42dc-9803-0b542e42c030

Tags

  • bd-topo
  • troyes-champagne-metropole
  • cadastre
  • batiments

Topics

Categories