EPSG:9943 — EBBWV14 Grid

Projected · UK - Newport to Ebbw Vale

Export Formats

OGC WKT

PROJCS[
    "EBBWV14 Grid",
    GEOGCS[
        "EBBWV14-IRF",
        DATUM[
            "EBBWV14_Intermediate_Reference_Frame",
            SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],
            AUTHORITY["EPSG","1319"]
        ],
        PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","9939"]
    ],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",51.75],
    PARAMETER["central_meridian",-3.1],
    PARAMETER["scale_factor",1],
    PARAMETER["false_easting",106702.326],
    PARAMETER["false_northing",119968.1395],
    UNIT["metre",1,AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","9943"]
]

WKT2

PROJCRS[
    "EBBWV14 Grid",
    BASEGEOGCRS[
        "EBBWV14-IRF",
        DATUM[
            "EBBWV14 Intermediate Reference Frame",
            ELLIPSOID[
                "GRS 1980",
                6378137,
                298.257222101,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7019]
            ],
            ID["EPSG",1319]
        ],
        DEFININGTRANSFORMATION[
            "ETRS89-GBR [OSNet v2009] to EBBWV14-IRF (1)",
            ID["EPSG",9941]
        ],
        ID["EPSG",9939]
    ],
    CONVERSION[
        "EBBWV14-TM",
        METHOD["Transverse Mercator",ID["EPSG",9807]],
        PARAMETER[
            "Latitude of natural origin",
            51.7500000000003,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8801]
        ],
        PARAMETER[
            "Longitude of natural origin",
            -3.10000000000028,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8802]
        ],
        PARAMETER[
            "Scale factor at natural origin",
            1,
            SCALEUNIT["unity",1,ID["EPSG",9201]],
            ID["EPSG",8805]
        ],
        PARAMETER[
            "False easting",
            106702.326,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8806]
        ],
        PARAMETER[
            "False northing",
            119968.1395,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8807]
        ],
        ID["EPSG",9942]
    ],
    CS[Cartesian,2,ID["EPSG",4400]],
    AXIS["Easting (E)",east],
    AXIS["Northing (N)",north],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",9943]
]

PROJ.4

+proj=tmerc +lat_0=51.75 +lon_0=-3.1 +k=1 +x_0=106702.326 +y_0=119968.1395 +ellps=GRS80 +units=m +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:9943", "+proj=tmerc +lat_0=51.75 +lon_0=-3.1 +k=1 +x_0=106702.326 +y_0=119968.1395 +ellps=GRS80 +units=m +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 9943,
  "name": "EBBWV14 Grid",
  "kind": "projected",
  "area": "UK - Newport to Ebbw Vale",
  "unit": "metre",
  "bbox": [
    51.5,
    -3.3,
    51.85,
    -2.89
  ],
  "proj4": "+proj=tmerc +lat_0=51.75 +lon_0=-3.1 +k=1 +x_0=106702.326 +y_0=119968.1395 +ellps=GRS80 +units=m +no_defs +type=crs"
}

PostGIS

How to add a projection to PostGIS? →

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (9943, 'EPSG', 9943, '+proj=tmerc +lat_0=51.75 +lon_0=-3.1 +k=1 +x_0=106702.326 +y_0=119968.1395 +ellps=GRS80 +units=m +no_defs +type=crs', 'PROJCS["EBBWV14 Grid",GEOGCS["EBBWV14-IRF",DATUM["EBBWV14_Intermediate_Reference_Frame",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1319"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","9939"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",51.75],PARAMETER["central_meridian",-3.1],PARAMETER["scale_factor",1],PARAMETER["false_easting",106702.326],PARAMETER["false_northing",119968.1395],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9943"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=tmerc"
  "+lat_0=51.75"
  "+lon_0=-3.1"
  "+k=1"
  "+x_0=106702.326"
  "+y_0=119968.1395"
  "+ellps=GRS80"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

9943=PROJCS["EBBWV14 Grid",GEOGCS["EBBWV14-IRF",DATUM["EBBWV14_Intermediate_Reference_Frame",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1319"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","9939"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",51.75],PARAMETER["central_meridian",-3.1],PARAMETER["scale_factor",1],PARAMETER["false_easting",106702.326],PARAMETER["false_northing",119968.1395],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9943"]]

Related Coordinate Systems

Available Transformations (1)

Transformations inherited from base CRS: EPSG:9939 (EBBWV14-IRF)

Transformation	Source → Target	Accuracy (m)
ETRS89-GBR [OSNet v2009] to EBBWV14-IRF (1)	11009 → 9939	0

Other CRS using EBBWV14 Intermediate Reference Frame

Frequently Asked Questions

How do I add EPSG:9943 to GeoServer?

Add the following definition to your GeoServer configuration:

9943=PROJCS["EBBWV14 Grid",GEOGCS["EBBWV14-IRF",DATUM["EBBWV14_Intermediate_Reference_Frame",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1319"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","9939"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",51.75],PARAMETER["central_meridian",-3.1],PARAMETER["scale_factor",1],PARAMETER["false_easting",106702.326],PARAMETER["false_northing",119968.1395],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9943"]]

Read the full GeoServer guide →

How do I add EPSG:9943 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (9943, 'EPSG', 9943, '+proj=tmerc +lat_0=51.75 +lon_0=-3.1 +k=1 +x_0=106702.326 +y_0=119968.1395 +ellps=GRS80 +units=m +no_defs +type=crs', 'PROJCS["EBBWV14 Grid",GEOGCS["EBBWV14-IRF",DATUM["EBBWV14_Intermediate_Reference_Frame",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1319"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","9939"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",51.75],PARAMETER["central_meridian",-3.1],PARAMETER["scale_factor",1],PARAMETER["false_easting",106702.326],PARAMETER["false_northing",119968.1395],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9943"]]');

Read the full PostGIS guide →

How do I add EPSG:9943 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=tmerc"
  "+lat_0=51.75"
  "+lon_0=-3.1"
  "+k=1"
  "+x_0=106702.326"
  "+y_0=119968.1395"
  "+ellps=GRS80"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:9943 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:9943", "+proj=tmerc +lat_0=51.75 +lon_0=-3.1 +k=1 +x_0=106702.326 +y_0=119968.1395 +ellps=GRS80 +units=m +no_defs +type=crs");

Read the full Proj4js guide →

Type

Projected

Unit

metre

Geodetic CRS

EBBWV14-IRF

Datum

EBBWV14 Intermediate Reference Frame

Ellipsoid

GRS 1980

Prime Meridian

Greenwich

Area of Use

UK - Newport to Ebbw Vale

United Kingdom (UK) - on or related to the rail route from Newport (Park Junction) to Ebbw Vale.

Coordinate System

Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.

Center Coordinates

107048.20 111623.51

Projected Bounds

131115.35 92814.23121172.86 92172.06

WGS84 Bounds

51.85 -3.30-2.89 51.50

Data Source

EPSG

Information Source

Network Rail.

Revision Date

2026-02-10

Scope

Engineering survey and topographic mapping for railway applications.

Remarks

Defined through transformation ETRS89-GBR [OSNet v2009] to EBBWV14-IRF (1) (code 9941) and map projection EBBWV14-TM (code 9942). Emulates the EBBWV14 Snake projection applied to ETRS89 as realized through OSNet v2009.

EPSG

9943