Georeferenced and vectorized 1834 cadastre (with attribute data), Charleville

The creation of a geographic information system (GIS) linked to socio-demographic databases is the most obvious extension of the "mpf" project to centralize, analyze and combine the many and rich cartographic archives linked to Charleville.
A first conclusive attempt to digitize this cadastre was carried out in 2015. It was carried out for the Saint-Sépulcre district based on a matrix and a cadastral map from 1834. Based on this positive experience feedback, it was decided to begin the full digitization and georeferencing of this cadastral plan in order to have a quality spatial repository that can be associated with socio-demographic data.
The use of the metric system and non-projected local coordinates suggested that absolute and relative Euclidean accuracies would be optimal. First, a geometric registration (planimetric coordinates) of the high definition digitized plane (raster format, 600 dots per inch) was started. This operation was built on the identification of common points between the contemporary urban fabric and the geometries present in the archive (street angles, intersection of buildings, etc.). The results obtained, from the geometrical method used called “Helmert transformation”, appeared satisfactory with a root mean square error (MSE) of 0.8 m from 116 common calibration points.
Once this georeferencing was carried out, the exhaustive digitization of the 1834 cadastre and its carto-interpretation made it possible to obtain a set of data composed of two sets of geographic information in open format (geojson) combining socio-demographic data and geometries.
Data set composed of three main files:
1. "cadastre-1834-sheet-c1.geojson", geojson format. Cadastre digitized exhaustively from sheet C1 kept in the departmental archives of the Ardennes (© departmental archives of the Ardennes).

[link to the departmental archives] (https://archives.cd08.fr/arkotheque/consult_fonds/fonds_seriel_resu_rech.php?ref_fonds=2). )

National Lambert 93 projection system (EPSG 2154), absolute submeter precision and relative centimeter precision.
2086 plots - geometries (closed polygons) associated with 7 attribute tables:
- "pk" (primary key) or unique identifier,
- "plot number" or plot number from the examination of the 1834 plan,
- "use" according to two values "public" or "private",
- "district" according to the 7 values "saint sepulcre", "saint-françois", "notre-dame", "saint-ignace", "hors-les-murs", "the alleys", and "small wood"
- "street" according to 90 values from the 1834 road network,
- "type" according to three values "built", "open space", "agricultural space".
as of 4/01/2021
Creative Commons License
"cadastre-1834-feuille-c1.geojson" by Sylvain Rassat, Center Roland Mousnier, Departmental Archives is made available under the terms of the Creative Commons Attribution-ShareAlike 4.0 International license.
Based on a Source Link work.
Permissions beyond the scope of this license can be obtained at https://www.researchgate.net/profile/Sylvain_Rassat.

[viewable within the urban 3D model of Charleville] (https://cesium.cstb.fr/Apps/cnrs/MN_Charleville3D.html)

2. "ilots1834.geojson", National Lambert 93 projection system (EPSG 2154), submeter absolute precision and centimeter relative precision. 36 islands (closed polygons) associated with 2 attribute tables: - "id" (identifier) or unique identifier, - "district" according to the 4 values "saint sepulcre", "saint-françois", "notre-dame", "saint -ignace ". as of 4/01/2021
Creative Commons License
"ilots1834.geojson" by Sylvain Rassat, Roland Mousnier Center, Departmental Archives is made available under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license.
Based on a Source Link work.
Permissions beyond the scope of this license can be obtained at https://www.researchgate.net/profile/Sylvain_Rassat.
[viewable within the urban 3D model of Charleville] (https://cesium.cstb.fr/Apps/cnrs/MN_Charleville3D.html)
3. Raster slab (image) georeferenced from the 1796 "Charleville-C1" cadastral plan (tif format) kept in the departmental archives of the Ardennes (Charleville-Mézières, © Departmental archives of the Ardennes). E.M.Q 0.8 m, national Lambert 93 projection system (EPSG 2154). status as of 01/01/2018.
Based on a Source Link work.
Permissions beyond the scope of this license can be obtained at https://www.researchgate.net/profile/Sylvain_Rassat.
[viewable within the urban 3D model of Charleville] (https://cesium.cstb.fr/Apps/cnrs/MN_Charleville3D.html)