EPSG:1311

EWR2 Intermediate Reference Frame

Attributes

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: Network Rail.

Revision date: 2021-07-16

Scope: Engineering survey and topographic mapping for railway applications.

Remarks: Created in 2021 to support intermediate CRS "EWR2-IRF" in the emulation of the EWR2 Snake map projection.

Area of use: United Kingdom (UK) - on or related to East West Rail (Phase 2) routes from Oxford to Bicester, Bletchley and Bedford, and from Claydon Junction to Aylesbury and Princes Risborough.

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Definition: OGC Well Known Text

DATUM["EWR2_Intermediate_Reference_Frame",
    SPHEROID["GRS 1980",6378137,298.257222101,
        AUTHORITY["EPSG","7019"]],
    AUTHORITY["EPSG","1311"]]

Definition: OGC Well Known Text 2 (2019)

DATUM["EWR2 Intermediate Reference Frame",
    ELLIPSOID["GRS 1980",6378137,298.257222101,
        LENGTHUNIT["metre",1]],
    ID["EPSG",1311]]

Definition: ESRI Well Known Text

DATUM["D_EWR2_Intermediate_Reference_Frame",
    SPHEROID["GRS_1980",6378137.0,298.257222101]]

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json",
    "type": "GeodeticReferenceFrame",
    "name": "EWR2 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 East West Rail (Phase 2) routes from Oxford to Bicester, Bletchley and Bedford, and from Claydon Junction to Aylesbury and Princes Risborough.",
    "bbox": {
        "south_latitude": 51.7,
        "west_longitude": -1.43,
        "north_latitude": 52.24,
        "east_longitude": -0.36
    },
    "id": {
        "authority": "EPSG",
        "code": 1311
    }
}

Definition: GeoServer

1311-datum=DATUM["EWR2_Intermediate_Reference_Frame",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1311"]]