EPSG:9299 HS2-IRF
Geographic system in latitude and longitude, in use: UK - London to Birmingham and Crewe. Datum, ellipsoid and transformation to WGS 84 below.
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:9299 |
|---|---|
| Name | HS2-IRF |
| Type | Geographic system |
| 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 |
| Unit | degree (Lat north, Lon east) |
| Transformation to WGS 84 | No simple transformation published (ellipsoid alone) |
| Scope | Engineering survey for HS2 project phases 1 and 2a. |
proj4 definition
+proj=longlat +ellps=GRS80 +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:9299.
WKT (ESRI format, the .prj content)
GEOGCS["GCS_HS2-IRF",DATUM["HS2_Intermediate_Reference_Frame",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]Other systems — United Kingdom
- EPSG:9300HS2 Survey Grid
- 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.