List of Train Describers

From Open Rail Data Wiki
Revision as of 13:27, 2 February 2021 by Cameron Bird (talk | contribs) (Add BA & CD bits)

The following list of train describers was last updated on 2nd February 2021.

Specific information relating to each TD (such as ECSs/SOPs which give the S-Class data mapping, Block schematics which show all the berth steps within a TD and stepping tables which show which conditions must be met in order for description to step) can be found by clicking on the link in the 'ID' column.

User contributed maps, where available, show signal berths and their locations in relation to the railway. Because maps have been compiled using steps seen from the feed, the placement of berths may not be accurate in all locations.

General information relating to entire signalling areas can be found by clicking the link in the 'topic' column. This may include track and signalling maps released by Network Rail.

The column headings are as follows:

  • ID - identity of the train describer in TD messages. This is not necessarily the same as the plated signalbox ID. Where a link is provided you will find specific details relating to that TD area.
  • Name - the name of the train describer
  • Topic - the name of the topic - if unspecified, data is available on the 'all area' feed. Where a link is provided you will find generic details relating to that area.
  • SIG - whether signal aspects (on/off) are available
  • RTE - whether route set indications are available
  • TRS - whether Train Ready To Start (TRTS) indications are available
  • TRK - whether track occupation (track circuit or axle counter) indications are available
  • PTS - whether points (normal/reverse) indications are available
  • LXG - whether level crossing barrier control indications are available
  • Commissioning - the date the train describer was commissioned or when it is expected (day/month/year).

A TD with the name of 'TBD' indicates a train describer which is planned, but details are not yet available. A '?' in one of the six S-Class columns indicates that this detail is not currently known. A Commissioning date marked * refers to the first messages in the feed, and may not relate to live signalling.

Current and Planned

ID Name Topic SIG RTE TRS TRK PTS LXG Commissioning
A2 Ashford IECC B TD_KENT_MCC_SIG_AREA ✔ ✔ ✔
A3 Ashford Front-End TD TD_KENT_MCC_SIG_AREA ✔ ✔
AD Ashford IECC A TD_KENT_MCC_SIG_AREA ✔ ✔ ✔
AL Alnmouth SB TD TBC (LNE_NE) ✔ ✔ ✔
AN Allington Junction TD_MC_EM_SIG_AREA ✔
AS Aston SCC TD TD_LNW_WMC_SIG_AREA ✔ ✔ ✔
AW Acton Wells TD_ANG_SIG_AREA ✔ ✔ ✔
B1 Basingstoke ROC Strawberry Hill Area IECC TBD ? ? ? ? ? ? Planned 04/2021
B2 Basingstoke ROC Ascot Area IECC TBD ? ? ? ? ? ? Planned 04/2022
BA Barnsley TD_LNE_NE_SIG_AREA Planned decommissioning 11/04/2021
BA Barnsley TBC (LNE_NE) ✔ ✔ ✔ Planned 11/04/2021
BE Basingstoke TD_WESS_SIG_AREA ✔ ✔ ✔ ✔
BG WMSC Bromsgrove Corridor WestCAD TBD ✔ ✔ 07/11/2016
BL Bristol PSB ITD TD_WWC_SIG_AREA
BM Barnham DTD TD_SUSS_SIG_AREA ✔ ✔ ✔ ✔
BN Birmingham New Street PSB TD_LNW_WMC_SIG_AREA Planned decommissioning 26/12/2022
BP Basingstoke (Poole - Wool) TD_WESS_SIG_AREA ✔ ✔ ✔
BS Barnes TD_WESS_SIG_AREA ✔ ✔ ✔
BU EMCC Burton Area WestCAD TBD ✔ ✔ ✔ 17/08/2018*
BX Basingstoke (WoE) TD_WESS_SIG_AREA ✔ ✔ ✔ ✔
C1 SWCC Newport Corridor WestCAD TD_WWM_SIG_AREA ✔ ✔ ✔
C2 SWCC Cardiff Area MCS TD_WWM_SIG_AREA ✔ ✔ ✔ ✔ ✔
C3 SWCC Shrewsbury North WestCAD TD_WWM_SIG_AREA ✔ ✔
C5 WROC North Wales Coast WestCAD TBD ✔ ✔ 09/03/2018*
C6 SWCC Swansea Area WestCAD TBD ✔ ✔ ✔ 26/02/2019*
CA Cambridge ITD TD_ANG_SIG_AREA ✔ ✔ ✔ ✔
CC Colchester TD_ANG_SIG_AREA ✔ ✔ ✔ ✔
CD Castleford TD_LNE_NE_SIG_AREA Planned decommissioning 04/04/2021
CD Castleford TBC (LNE_NE) ✔ ✔ ✔ Planned 04/04/2021
CE Crewe PSB TD_LNW_C_SIG_AREA ✔ ✔ ✔
CH Chichester TD_SUSS_SIG_AREA ✔ ✔
CL Carlisle PSB TD TD_LNW_LC_SIG_AREA
CS Chester PSB TD_LNW_C_SIG_AREA
CT Channel Tunnel TD_KENT_MCC_SIG_AREA ✔
CV WMSC Cherwell Valley WestCAD TD_LNW_WMC_SIG_AREA ✔ ✔ 08/08/2016
CY WMSC Coventry WestCAD TD_LNW_WMC_SIG_AREA ✔ ✔ ✔
D0 TVSC Temple Meads IECC TBD ✔ ✔ ✔ ✔ 29/03/2018*
D1 TVSC Reading IECC A TD_WTV_SIG_AREA ✔ ✔ ✔ ✔
D2 TVSC Reading IECC B TD_WTV_SIG_AREA ✔ ✔ ✔ ✔
D3 TVSC Paddington IECC TD_WTV_SIG_AREA ✔ ✔ ✔ ✔
D4 TVSC Hayes IECC TD_WTV_SIG_AREA ✔ ✔ ✔ ✔
D5 TVSC Didcot IECC TD_WWC_SIG_AREA ✔ ✔ ✔ ✔
D6 TVSC Maidenhead IECC TD_WTV_SIG_AREA ✔ ✔ ✔
D7 TVSC Swindon IECC TD_WWC_SIG_AREA ✔ ✔ ✔
D9 TVSC Stoke Gifford IECC TD_WTV_SIG_AREA ✔ ✔ ✔ 30/08/2016
DA TVSC Acton Area IECC TBD ? ? ? ? ? ? Planned 27/12/2021
DR Doncaster PSB TD TD_LNE_GN_SIG_AREA
DY EMCC Derby Area WestCAD TBD ✔ ✔ ✔ ✔ 03/09/2018
E1 Edgeley No 1 TD_LNW_C_SIG_AREA ✔
EA Edinburgh IECC A TD_SE_SIG_AREA ✔ ✔ ✔
EB Edinburgh IECC B TD_SE_SIG_AREA ✔ ✔ ✔ ✔
EC Edinburgh IECC C TD_SE_SIG_AREA ✔ ✔ ✔ ✔
ED Edinburgh IECC D TD_SE_SIG_AREA ✔ ✔ ✔ ✔
EE Edinburgh IECC E TBD ? ? ? ? ? ? Planned 12/12/2021
EH Eastleigh TD_WESS_SIG_AREA ✔ ✔ ✔ ✔ ✔ ✔
EK East Kent MCS ITD TD_KENT_MCC_SIG_AREA ✔ ✔ ✔ ✔ ✔ ✔
EN Cambridge IECC (Ely - Norwich) TD_ANG_SIG_AREA ✔ ✔ ✔ ✔
EX Exeter TD_WWC_SIG_AREA ✔
F2 Feltham (Shepperton Branch) IECC TBD ? ? ? ? ? ? 23/06/2019, planned decommissioning 04/2021
FE Ferrybridge TD_LNE_GN_SIG_AREA ✔ ✔ ✔
FH Feltham ASC TD TD_WESS_SIG_AREA ✔ Planned decommissioning 12/2022
G1 WSSC Glasgow Area WestCAD TD_SW_SIG_AREA ✔ ✔ ✔ ✔
G2 WSSC Paisley ITD TD_SW_SIG_AREA ✔ ✔ ✔ ✔ ✔
G3 WSSC Newton/Whifflet Area WestCAD TBD ✔ ✔ ✔ 18/04/2017
G4 WSSC Motherwell/Carstairs Area WestCAD TBD ✔ ✔ ✔ 16/08/2018*
GD Guildford TD_WESS_SIG_AREA
GL Gloucester ITD TD_WWC_SIG_AREA
HG Harrogate IECC TD_LNE_NE_SIG_AREA ✔ ✔ ✔ ✔
HN Heaton Norris TD_LNW_C_SIG_AREA ✔
HT Havant TD_WESS_SIG_AREA ✔ ✔ ✔
IH Inverness Highlands WestCAD TBD ✔ ✔ ✔ 05/12/2017*
KG EMCC Kettering Area WestCAD TBD ✔ ✔ ✔ 21/02/2018*
KN WMSC Kings Norton WestCAD TBD ✔ ✔ 07/11/2016
KX Kings Cross TD_LNE_GN_SIG_AREA Planned decommissioning 15/03/2022
L2 Lincoln East TD_MC_EM_SIG_AREA ✔ ✔
LA Lancing TD_SUSS_SIG_AREA ✔
LC WMSC Leamington Corridor TD_LNW_WMC_SIG_AREA ✔ ✔ ✔
LN Lincoln TD_MC_EM_SIG_AREA ✔ ✔ ✔
LR EMCC Leicester Area WestCAD TD_MC_EM_SIG_AREA ✔ ✔ ✔ ✔
M0 MRROC Lime Street WestCAD TBD ✔ ✔ ✔ 26/07/2018*
M1 MRROC Liverpool Area WestCAD TD_LNW_C_SIG_AREA ✔ ✔
M2 MRROC Manchester North WestCAD TD_LNW_C_SIG_AREA ✔ ✔
M3 MRROC Manchester Central WestCAD TD_LNW_C_SIG_AREA ✔ ✔ ✔
M4 MRROC Wavertree (East) WestCAD TBD ✔ ✔ 07/05/2018*
M5 MRROC Wavertree (West) WestCAD TBD ✔ ✔ 19/12/2018*
M6 MRROC Macclesfield TBD ? ? ? ? ? ? Planned 30/08/2022
M9 MRROC Blackpool Area WestCAD TBD ✔ ✔ 29/01/2018
MA Maidstone East TD_KENT_MCC_SIG_AREA ✔
MD EMCC Mansfield TD_MC_EM_SIG_AREA ✔ ✔ ✔
ME Marylebone Chilterns IECC TD_LNW_WMC_SIG_AREA ✔ ✔ ✔ ✔
MH Machynlleth TD_WWM_SIG_AREA ✔ ✔ ✔
MO Morpeth SB TD TBC (LNE_NE) ✔ ✔ ✔
MP Manchester Piccadilly PSB TD TD_LNW_C_SIG_AREA ✔ ✔ ✔ ✔
MS Manchester South TD_LNW_C_SIG_AREA ✔ ✔
MZ Manchester East WestCAD TD_LNW_C_SIG_AREA ✔ ✔ ✔ ✔
NE EMCC North Erewash Area WestCAD TD_MC_EM_SIG_AREA ✔ ✔
NJ Neasden Jn TD TBD ? ? ? ? ? ? 2016
NK Ashford North Kent MCS TD_KENT_MCC_SIG_AREA ✔ ✔ ✔ ✔ ✔
NL Colchester NYL Area MCS TBD ✔ ✔ ✔ ✔ ✔ 04/02/2020*
NM EMCC Nottingham WestCAD TD_MC_EM_SIG_AREA ✔ ✔ ✔
NS WMSC New Street Station WestCAD TBD ? ? ? ? ? ? Planned 26/12/2022
NX East London Line TD_ANG_SIG_AREA ? ? ? ? ? ?
PB Peterborough TD_LNE_GN_SIG_AREA Planned decommissioning 12/2021
PH Plymouth TD_WWC_SIG_AREA
PJ WMSC Proof House Jn WestCAD TBD ✔ ✔ 17/12/2017*
PT Port Talbot TD_WWM_SIG_AREA
PX Preston PSB TD TD_LNW_LC_SIG_AREA
Q0 ROROC Crossrail RCC (Core) TBD ? ? ? ? ? ? 14/02/2019*[1]
Q1 ROROC Stratford IECC TBD ✔ ✔ ✔ ✔ 06/11/2016
Q2 ROROC Shenfield IECC TBD ✔ ✔ ✔ ✔ 26/02/2017
Q3 ROROC West Anglia Area IECC TBD ✔ ✔ ✔ ✔ ✔ 08/03/2019*
Q4 ROROC Liverpool Street Area IECC TBD ✔ ✔ ✔ ✔ 13/09/2020*[2]
Q5 ROROC LT&S (Main) Area IECC TBD ✔ ✔ ✔ ✔ ✔ 27/09/2020[2]
Q6 ROROC LT&S (Loop) Area IECC TBD ✔ ✔ ✔ ✔ 27/09/2020[2]
R1 Rugby SCC (Watford - Bletchley ITD) TD_WCS_SIG_AREA ✔ ✔ ✔ ✔ ✔
R2 Rugby SCC (Northampton - Rugby ITD) TD_WCS_SIG_AREA ✔ ✔ ✔ ✔ ✔
R3 RYROC Stafford Area WestCAD TBD ✔ ✔ 01/09/2015
RA Radyr TD_WWM_SIG_AREA
RT Marston Vale MCS TD_WCS_SIG_AREA ✔ ✔ ✔ ✔ ✔
RW Rochdale West TD_LNW_C_SIG_AREA ✔ ✔ ✔
SC Scunthorpe TD_LNE_GN_SIG_AREA
SJ WMSC Stourbridge WestCAD TD_LNW_WMC_SIG_AREA ✔ ✔ ✔
SK Stoke On Trent TD_LNW_C_SIG_AREA ✔ ✔ ✔ ✔ ✔
SM Stirling Middle TD_SE_SIG_AREA ✔ ✔
SO South Tottenham TD_ANG_SIG_AREA
SS Merseyrail IECC TD_LNW_C_SIG_AREA ✔ ✔ ✔ ✔
SU Surbiton (Woking) TD_WESS_SIG_AREA ✔
SV WMSC Stour Valley WestCAD TBD ✔ ✔ 17/12/2017*
SX Saxmundham (East Suffolk) MCS TD_ANG_SIG_AREA ✔ ✔ ✔ ✔
T1 Tyneside 1 IECC TD_LNE_NE_SIG_AREA ✔ ✔ ✔
T2 Tyneside 2 IECC TD_LNE_NE_SIG_AREA ✔ ✔ ✔
TB Three Bridges ASC ITD TD_SUSS_SIG_AREA ✔ ✔
TD WMSC Telford TD_LNW_WMC_SIG_AREA ✔ ✔ ✔
TE Tonbridge TD_KENT_MCC_SIG_AREA ✔ ✔
TH Thrumpton TD_LNE_GN_SIG_AREA ✔ ✔
TN EMCC Chesterfield Area WestCAD TD_MC_EM_SIG_AREA ✔ ✔ ✔
TW Tweedmouth SB TD TBC (LNE_NE) ✔ ✔ ✔
TY Tees Yard (Ryhope) TD_LNE_NE_SIG_AREA ✔ ✔ ✔ Planned decommissioning 10/02/2021
U3 Upminster 3 IECC TD_ANG_SIG_AREA ✔ ✔ ✔ ✔
VC London Victoria TD_SUSS_SIG_AREA ✔ ✔
W2 Woking (Farnham) TD_WESS_SIG_AREA ✔ ✔ ✔
WA Warrington PSB TD_LNW_C_SIG_AREA ✔ ✔
WC Wembley C Sidings 07/06/2015
WD Winsford PSB TD_LNW_C_SIG_AREA
WE Worksop TD_LNE_GN_SIG_AREA ✔
WH West Hampstead PSB TD_MC_EM_SIG_AREA
WI Wimbledon NCP TD_WESS_SIG_AREA ✔ ✔ ✔
WJ Wembley Mainline (Watford) WestCAD TD_WCS_SIG_AREA ✔ ✔
WK Wakefield Kirkgate TD_LNE_NE_SIG_AREA
WL WMSC Walsall WestCAD TBD ✔ ✔ ✔
WN WMSC Water Orton WestCAD TD_LNW_WMC_SIG_AREA ✔ ✔
WO WMSC Wolverhampton WestCAD TD_LNW_WMC_SIG_AREA ✔ ✔
WS Willesden Suburban TD_WCS_SIG_AREA ✔ ✔ ✔ ✔ ✔
WW Westbury TD_WWC_SIG_AREA ✔
WY Wembley Mainline PSB TD_WCS_SIG_AREA ✔ ✔ ✔
X0 TBROC Thameslink Core WestCAD TD_SUSS_SIG_AREA ✔ ✔ ✔ ✔ 15/03/2015
X1 TBROC London Bridge Central WestCAD TD_SUSS_SIG_AREA ✔ ✔ ✔ ✔ 05/01/2015
X2 TBROC Charing Cross WestCAD TBD ✔ ✔ ✔ ✔ 04/01/2016
X3 TBROC Cannon Street WestCAD TBD ✔ ✔ ✔ ✔ 30/08/2016
X5 TBROC Sutton Area WestCAD TBD ✔ ✔ ✔ ✔ 09/03/2018*
X6 TBROC Streatham Area WestCAD TBD ✔ ✔ ✔ 03/05/2016
X7 TBROC East Sussex MCS TBD ✔ ✔ ✔ ✔ ✔ 02/12/2019*
XB Macclesfield TD_LNW_C_SIG_AREA Planned decommissioning 30/08/2022
XE Warrington Central TD_LNW_C_SIG_AREA
XL Hunts Cross TD_LNW_C_SIG_AREA
Y0 YKROC North Lincs WestCAD TBD ✔ ✔ ✔ ✔ 30/12/2015
Y1 YKROC York Area IECC TBD ✔ ✔ ✔ ✔ ✔ 25/12/2018*
Y2 YKROC Leeds City Area IECC TBC (LNE_NE) ✔ ✔ ✔ ✔ 25/12/2018*
Y3 YKROC Leeds North West Area IECC TBC (LNE_NE) ✔ ✔ ✔ ✔ 25/12/2018*
Y4 YKROC Sheffield WestCAD TBD ✔ ✔ ✔ ✔ 02/05/2016
Y5 YKROC Brough WestCAD TBD ✔ ✔ 07/11/2018*
Y6 YKROC Huddersfield WestCAD TBD ✔ ✔ ✔ ✔ 18/01/2018*
Y7 YKROC Halifax WestCAD TBD ✔ ✔ ✔ ✔ 17/10/2018*
Y8 YKROC Kings Cross North WestCAD TBD ✔ ✔ ✔ 26/11/2018*
Y9 YKROC Kings Cross South WestCAD TBD ✔ ✔ ✔ Planned 26/04/2021
YA YKROC Bowesfield & Hartlepool WestCAD TBD ? ? ? ? ? ? 08/03/2019*, planned rename to YZ 10/02/2021
YA YKROC Hartlepool Area WestCAD TBD ✔ ✔ ✔ Planned 10/02/2021
YB YKROC Middlesborough Area WestCAD TBD ? ? ? ? ? ? Planned 11/2021
YO Yoker SCC MCS TD_SW_SIG_AREA ✔ ✔ ✔ ✔ ✔
ZA Ashford TDC TD_KENT_MCC_SIG_AREA
ZB Bournemouth TDC TD_WESS_SIG_AREA ✔
ZG Guildford TDC TD_WESS_SIG_AREA ✔ ✔
ZH Horsham TDC TD_SUSS_SIG_AREA
ZR Rainham TDC TD_KENT_MCC_SIG_AREA
ZY Yeovil TDC TD_WESS_SIG_AREA ✔ ✔ ✔

Decommissioned

ID Name Topic SIG RTE TRS TRK PTS LXG Abolished
BD Bowesfield TD_LNE_NE_SIG_AREA ✔ ✔ 09/03/2019
CF Cardiff TD_WWM_SIG_AREA 30/12/2015
CM Carmuirs East TD_SE_SIG_AREA ✔ ✔ ✔ ✔ ~26/12/2017
DN (Not commissioned)
DY Derby TD_MC_EM_SIG_AREA ✔ ✔ 01/09/2018
ES TBROC East Sussex MCS TD_SUSS_SIG_AREA ✔ ✔ ✔ ✔ ✔ ✔ 02/12/2019
HM Healey Mills TD_LNE_NE_SIG_AREA ✔ ✔ ✔ ✔ ~22/01/2018
HU Huddersfield TD_LNE_NE_SIG_AREA ~22/01/2018
K2 Kings Cross (Hertford Loop) TD_LNE_GN_SIG_AREA ✔ ✔ ✔ 02/12/2018
LB London Bridge ASC TD TD_KENT_MCC_SIG_AREA ✔ ✔ 25/07/2020
LE Leamington Spa TD_LNW_WMC_SIG_AREA 07/08/2016
LS Liverpool Street IECC "A" TD_ANG_SIG_AREA ✔ ✔ ✔ ✔ 13/09/2020[2]
ML Motherwell PSB TD TD_SW_SIG_AREA ✔ ✔ ✔ 25/12/2019
NT Newport PSB TD_WWM_SIG_AREA 29/10/2012
OX Oxford PSB TD_WWC_SIG_AREA 07/07/2018
SA Saltley TD_LNW_WMC_SIG_AREA 07/11/2016
SD Sheffield TD_LNE_GN_SIG_AREA 02/05/2016
SE Shenfield IECC (Liverpool Street IECC "C") TD_ANG_SIG_AREA ✔ ✔ ✔ 26/02/2017
SH Slough A TD_WTV_SIG_AREA ✔ 07/04/2015
SI Stratford IECC (Liverpool Street IECC "B") TD_ANG_SIG_AREA ✔ ✔ ✔ 06/11/2016
SN Swindon A ITD TD_WWC_SIG_AREA 21/02/2016
UR Upminster "A" IECC TD_ANG_SIG_AREA ✔ ✔ ✔ ✔ 27/09/2020[2]
U2 Upminster "B" IECC TD_ANG_SIG_AREA ✔ ✔ ✔ ✔ 27/09/2020[2]
VT Thameslink South TD_SUSS_SIG_AREA ✔ ✔ ✔ 15/03/2015
WG West Anglia IECC (Liverpool Street IECC "D") TD_ANG_SIG_AREA 09/03/2019
WT Thameslink North TD_MC_EM_SIG_AREA ✔ ✔ ✔ 15/03/2015
XH Stafford No 4 TD_LNW_C_SIG_AREA 01/09/2015
XJ Stafford No 5 TD_LNW_C_SIG_AREA 01/09/2015
XP Manchester North ? 07/04/2015
XZ Liverpool Lime Street TD_LNW_C_SIG_AREA 29/07/2018
Y2 York IECC 2 (Leeds City) TD_LNE_NE_SIG_AREA ✔ ✔ ✔ 25/12/2018
Y3 York IECC 3 (Leeds North West) TD_LNE_NE_SIG_AREA ✔ ✔ ✔ 25/12/2018
YK York IECC TD_LNE_NE_SIG_AREA 25/12/2018
ZE Eastbourne TDC TD_SUSS_SIG_AREA 29/11/2019


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  1. ↑ Crossrail RCC TD 'Q0' is under test and not continuously connected
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 On 01/01/2020 LS, UR, & U2 TDs were erroneously switched over to their new Q4, Q5, & Q6 identities, this was reverted on 02/01/2020.
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