Engineering survey for HS2 project phases 1 and 2a.
HS2 Survey Grid is equivalent to the tailored zero-distortion ETRS89-based SnakeGrid HS2P1+14, the Snake projection emulated using an NTv2 transformation (code 9302) and a Transverse Mercator map projection (code 9301).
Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.
207385.84 383417.27
111978.94 280489.16
303145.07 487396.54
-2.75 51.45
0.0 53.3
Definition: OGC Well Known Text
PROJCS["HS2 Survey Grid", GEOGCS["HS2-IRF", DATUM["HS2_Intermediate_Reference_Frame", SPHEROID["GRS 1980",6378137,298.257222101, AUTHORITY["EPSG","7019"]], AUTHORITY["EPSG","1264"]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","9299"]], PROJECTION["Transverse_Mercator"], PARAMETER["latitude_of_origin",52.3], PARAMETER["central_meridian",-1.5], PARAMETER["scale_factor",1], PARAMETER["false_easting",198873.0046], PARAMETER["false_northing",375064.3871], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","9300"]]
Definition: OGC Well Known Text 2 (2019)
PROJCRS["HS2 Survey Grid", BASEGEOGCRS["HS2-IRF", DATUM["HS2 Intermediate Reference Frame", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",9299]], CONVERSION["HS2-TM", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",52.3, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-1.5, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",1, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",198873.0046, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",375064.3871, 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 for HS2 project phases 1 and 2a."], AREA["United Kingdom (UK) - HS2 phases 1 and 2a railway corridor from London to Birmingham, Lichfield and Crewe."], BBOX[51.45,-2.75,53.3,0]], ID["EPSG",9300]]
Definition: ESRI Well Known Text
PROJCS["HS2_Survey_Grid", GEOGCS["GCS_HS2-IRF", DATUM["HS2_Intermediate_Reference_Frame", SPHEROID["GRS_1980",6378137.0,298.257222101]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Transverse_Mercator"], PARAMETER["False_Easting",198873.0046], PARAMETER["False_Northing",375064.3871], PARAMETER["Central_Meridian",-1.5], PARAMETER["Scale_Factor",1.0], PARAMETER["Latitude_Of_Origin",52.3], UNIT["Meter",1.0]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "HS2 Survey Grid", "base_crs": { "name": "HS2-IRF", "datum": { "type": "GeodeticReferenceFrame", "name": "HS2 Intermediate Reference Frame", "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "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": 9299 } }, "conversion": { "name": "HS2-TM", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 52.3, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -1.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 1, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 198873.0046, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 375064.3871, "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 for HS2 project phases 1 and 2a.", "area": "United Kingdom (UK) - HS2 phases 1 and 2a railway corridor from London to Birmingham, Lichfield and Crewe.", "bbox": { "south_latitude": 51.45, "west_longitude": -2.75, "north_latitude": 53.3, "east_longitude": 0 }, "id": { "authority": "EPSG", "code": 9300 } }
Definition: GeoServer
9300=PROJCS["HS2 Survey Grid",GEOGCS["HS2-IRF",DATUM["HS2_Intermediate_Reference_Frame",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1264"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","9299"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",52.3],PARAMETER["central_meridian",-1.5],PARAMETER["scale_factor",1],PARAMETER["false_easting",198873.0046],PARAMETER["false_northing",375064.3871],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9300"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +lat_0=52.3 +lon_0=-1.5 +k=1 +x_0=198873.0046 +y_0=375064.3871 +ellps=GRS80 +units=m +no_defs +type=crs"> <Layer srs="+proj=tmerc +lat_0=52.3 +lon_0=-1.5 +k=1 +x_0=198873.0046 +y_0=375064.3871 +ellps=GRS80 +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 9300, 'EPSG', 9300, '+proj=tmerc +lat_0=52.3 +lon_0=-1.5 +k=1 +x_0=198873.0046 +y_0=375064.3871 +ellps=GRS80 +units=m +no_defs +type=crs', 'PROJCS["HS2 Survey Grid",GEOGCS["HS2-IRF",DATUM["HS2_Intermediate_Reference_Frame",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1264"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","9299"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",52.3],PARAMETER["central_meridian",-1.5],PARAMETER["scale_factor",1],PARAMETER["false_easting",198873.0046],PARAMETER["false_northing",375064.3871],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9300"]]');