EPSG:1405

EWR3 Intermediate Reference Frame

Attributes

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: Network Rail.

Revision date: 2025-05-05

Scope: Engineering survey and topographic mapping for railway applications.

Remarks: Created in 2024 to support intermediate CRS "EWR3-IRF" in the emulation of the EWR3 Snake map projection.

Area of use: United Kingdom (UK) - on or related to the East West Rail (Phases 2 and 3) route from Oxford to Cambridge via Bicester, Bletchley and Bedford, including the route from Claydon Junction to Aylesbury and Princes Risborough.

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WGS84 bounds:
0.27 51.7
-1.43 52.33

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Definition: OGC Well Known Text

DATUM["EWR3_Intermediate_Reference_Frame",
    SPHEROID["GRS 1980",6378137,298.257222101,
        AUTHORITY["EPSG","7019"]],
    AUTHORITY["EPSG","1405"]]

Definition: OGC Well Known Text 2 (2019)

DATUM["EWR3 Intermediate Reference Frame",
    ELLIPSOID["GRS 1980",6378137,298.257222101,
        LENGTHUNIT["metre",1]],
    ID["EPSG",1405]]

Definition: ESRI Well Known Text

DATUM["D_EWR3_Intermediate_Reference_Frame",
    SPHEROID["GRS_1980",6378137.0,298.257222101]]

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeodeticReferenceFrame",
    "name": "EWR3 Intermediate Reference Frame",
    "ellipsoid": {
        "name": "GRS 1980",
        "semi_major_axis": 6378137,
        "inverse_flattening": 298.257222101
    },
    "scope": "Engineering survey and topographic mapping for railway applications.",
    "area": "United Kingdom (UK) - on or related to the East West Rail (Phases 2 and 3) route from Oxford to Cambridge via Bicester, Bletchley and Bedford, including the route from Claydon Junction to Aylesbury and Princes Risborough.",
    "bbox": {
        "south_latitude": 51.7,
        "west_longitude": -1.43,
        "north_latitude": 52.33,
        "east_longitude": 0.27
    },
    "id": {
        "authority": "EPSG",
        "code": 1405
    }
}

Definition: GeoServer

1405-datum=DATUM["EWR3_Intermediate_Reference_Frame",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1405"]]