EPSG:9300 HS2 Survey Grid
Projected system (Transverse Mercator) in use: UK - London to Birmingham and Crewe. The full definition below, and conversion in one click.
EPSG publishes no simple transformation to WGS 84 for this datum: conversion works on the ellipsoid alone and can be off by tens of metres.
| Code | EPSG:9300 |
|---|---|
| Name | HS2 Survey Grid |
| Type | Projected system — Transverse Mercator |
| Area of use |
UK - London to Birmingham and Crewe United Kingdom (UK) - HS2 phases 1 and 2a railway corridor from London to Birmingham, Lichfield and Crewe. |
| Bounds | W -2,75° · S 51,45° · E 0,00° · N 53,30° |
| Countries | United Kingdom |
| Datum | HS2 Intermediate Reference Frame |
| Ellipsoid | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Base geographic system | EPSG:9299 — HS2-IRF |
| Unit | metre (E east, N north) |
| Transformation to WGS 84 | No simple transformation published (ellipsoid alone) |
| Scope | Engineering survey for HS2 project phases 1 and 2a. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 52.3 | degree |
| Longitude of natural origin | -1.5 | degree |
| Scale factor at natural origin | 1 | unity |
| False easting | 198873.0046 | metre |
| False northing | 375064.3871 | metre |
proj4 definition
+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_defsPaste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:9300.
WKT (ESRI format, the .prj content)
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]]Other systems — United Kingdom
- EPSG:9299HS2-IRF
- EPSG:9364TPEN11-IRF
- EPSG:9367TPEN11 Grid
- EPSG:9372MML07-IRF
- EPSG:9373MML07 Grid
- EPSG:9384AbInvA96_2020-IRF
- EPSG:9387AbInvA96_2020 Grid
- EPSG:9453GBK19-IRF
- EPSG:9456GBK19 Grid
- EPSG:9739EOS21-IRF
- EPSG:9741EOS21 Grid
- EPSG:9758ECML14_NB-IRF
- EPSG:9761ECML14_NB Grid
- EPSG:9763EWR2-IRF
- EPSG:9766EWR2 Grid
- EPSG:9866MRH21-IRF
- EPSG:9869MRH21 Grid
- EPSG:9871MOLDOR11-IRF
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.