Unit: degree (supplier to define representation)
Geodetic CRS: Xrail84
Datum: Xrail84
Ellipsoid: WGS 84
Prime meridian: Greenwich
Data source: EPSG
Information source: Transport for London, Topographic surveys and mapping Standard S1026, issue A2, March 2016.
Revision date: 2025-10-28
Scope: Engineering survey and topographic mapping for transport applications.
Area of use: United Kingdom (UK) - Greater London and surrounding area.
Coordinate system: Ellipsoidal 3D CS. Axes: latitude, longitude, ellipsoidal height. Orientations: north, east, up. UoM: degree, degree, metre.
Center coordinates
-0.27 51.55
Projected bounds:
-1.33 51.1
0.8 52.0
WGS84 bounds:
-1.33 51.1
0.8 52.0
Definition: OGC Well Known Text 2 (2019)
GEOGCRS["Xrail84", DATUM["Xrail84", ELLIPSOID["WGS 84",6378137,298.257223563, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[ellipsoidal,3], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["degree",0.0174532925199433]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["degree",0.0174532925199433]], AXIS["ellipsoidal height (h)",up, ORDER[3], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Engineering survey and topographic mapping for transport applications."], AREA["United Kingdom (UK) - Greater London and surrounding area."], BBOX[51.1,-1.33,52,0.8]], ID["EPSG",10992]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "GeographicCRS", "name": "Xrail84", "datum": { "type": "GeodeticReferenceFrame", "name": "Xrail84", "ellipsoid": { "name": "WGS 84", "semi_major_axis": 6378137, "inverse_flattening": 298.257223563 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" }, { "name": "Ellipsoidal height", "abbreviation": "h", "direction": "up", "unit": "metre" } ] }, "scope": "Engineering survey and topographic mapping for transport applications.", "area": "United Kingdom (UK) - Greater London and surrounding area.", "bbox": { "south_latitude": 51.1, "west_longitude": -1.33, "north_latitude": 52, "east_longitude": 0.8 }, "id": { "authority": "EPSG", "code": 10992 } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=longlat +ellps=WGS84 +no_defs +type=crs"> <Layer srs="+proj=longlat +ellps=WGS84 +no_defs +type=crs"> </Layer> </Map>