Unit: metre
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 A4, May 2025.
Revision date: 2025-10-28
Scope: Engineering survey and topographic mapping for transport applications.
Remarks: Horizontal component of the London Survey Grid 2025 (LSG2025) (CRS code 11006).
Area of use: United Kingdom (UK) - Greater London and surrounding area.
Coordinate system: Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.
Center coordinates
70826.42 39884.88
Projected bounds:
-3845.59 -10185.49
145353.46 90596.74
WGS84 bounds:
-1.33 51.1
0.8 52.0
Definition: OGC Well Known Text
PROJCS["Xrail84 / London Survey Grid TM", GEOGCS["Xrail84", DATUM["Xrail84", SPHEROID["WGS 84",6378137,298.257223563, AUTHORITY["EPSG","7030"]], AUTHORITY["EPSG","1408"]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","10993"]], PROJECTION["Transverse_Mercator"], PARAMETER["latitude_of_origin",51.1666666666667], PARAMETER["central_meridian",-0.158333333333333], PARAMETER["scale_factor",0.9999999], PARAMETER["false_easting",78250], PARAMETER["false_northing",-2800], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","10995"]]
Definition: OGC Well Known Text 2 (2019)
PROJCRS["Xrail84 / London Survey Grid TM", BASEGEOGCRS["Xrail84", DATUM["Xrail84", ELLIPSOID["WGS 84",6378137,298.257223563, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",10993]], CONVERSION["London Survey Grid TM", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",51.1666666666667, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-0.158333333333333, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",0.9999999, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",78250, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",-2800, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["(E)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["(N)",north, ORDER[2], 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",10995]]
Definition: ESRI Well Known Text
PROJCS["Xrail84_London_Survey_Grid_TM", GEOGCS["GCS_Xrail84", DATUM["D_Xrail84", SPHEROID["WGS_1984",6378137.0,298.257223563]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Transverse_Mercator"], PARAMETER["False_Easting",78250.0], PARAMETER["False_Northing",-2800.0], PARAMETER["Central_Meridian",-0.158333333333333], PARAMETER["Scale_Factor",0.9999999], PARAMETER["Latitude_Of_Origin",51.1666666666667], UNIT["Meter",1.0]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "Xrail84 / London Survey Grid TM", "base_crs": { "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" } ] }, "id": { "authority": "EPSG", "code": 10993 } }, "conversion": { "name": "London Survey Grid TM", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 51.1666666666667, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -0.158333333333333, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.9999999, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 78250, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": -2800, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "E", "direction": "east", "unit": "metre" }, { "name": "Northing", "abbreviation": "N", "direction": "north", "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": 10995 } }
Definition: GeoServer
10995=PROJCS["Xrail84 / London Survey Grid TM",GEOGCS["Xrail84",DATUM["Xrail84",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","1408"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","10993"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",51.1666666666667],PARAMETER["central_meridian",-0.158333333333333],PARAMETER["scale_factor",0.9999999],PARAMETER["false_easting",78250],PARAMETER["false_northing",-2800],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","10995"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +lat_0=51.1666666666667 +lon_0=-0.158333333333333 +k=0.9999999 +x_0=78250 +y_0=-2800 +ellps=WGS84 +units=m +no_defs +type=crs"> <Layer srs="+proj=tmerc +lat_0=51.1666666666667 +lon_0=-0.158333333333333 +k=0.9999999 +x_0=78250 +y_0=-2800 +ellps=WGS84 +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 10995, 'EPSG', 10995, '+proj=tmerc +lat_0=51.1666666666667 +lon_0=-0.158333333333333 +k=0.9999999 +x_0=78250 +y_0=-2800 +ellps=WGS84 +units=m +no_defs +type=crs', 'PROJCS["Xrail84 / London Survey Grid TM",GEOGCS["Xrail84",DATUM["Xrail84",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","1408"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","10993"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",51.1666666666667],PARAMETER["central_meridian",-0.158333333333333],PARAMETER["scale_factor",0.9999999],PARAMETER["false_easting",78250],PARAMETER["false_northing",-2800],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","10995"]]');