List of Train Describers

The following list of TD areas was last updated on 20th February 2018.

Specific information relating to each TD (such as ECS's/SOP's 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.

• Note: As of September 2017 NR have decided still not to continue fulfilling requests to provide TD technical data (SOP's, Stepping schematics etc) - this has been to internal review & they are still blocking the requests. I have since been put in contact with a member of the TED team, and am exploring some avenues with them directly before I use the brute force of the ICO to try and crack them. In a nut-shell NR say the release of the technical information is a security risk to railway systems and have decided that no more will be released till such time they can work out the specifics. It has been acknowledged that this goes against the spirit of what's been done up till now, and that it effectively means a lot of the stuff on the NROD feeds is technically useless to most people as they rely on the technical documentation to build products etc. Once we have had a chance to have a direct conversation with the new contact I'll update this section... //Q

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).
• Abolished - the date the train describer was abolished 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	Y	Y	Y
A3	Ashford Front-End TD	TD_KENT_MCC_SIG_AREA	Y	Y
AD	Ashford IECC A	TD_KENT_MCC_SIG_AREA	Y	Y	Y
AL	Alnmouth	TD_LNE_NE_SIG_AREA
AN	Allington Junction	TD_MC_EM_SIG_AREA	Y
AS	Aston	TD_LNW_WMC_SIG_AREA	Y	Y	Y
AW	Acton Wells	TD_ANG_SIG_AREA	Y	Y			Y
BA	Barnsley	TD_LNE_NE_SIG_AREA
BD	Bowesfield	TD_LNE_NE_SIG_AREA	Y	Y
BE	Basingstoke	TD_WESS_SIG_AREA	Y	Y	Y	Y
BG	WMSC Bromsgrove Corridor WestCAD	TBD	Y	Y					07/11/2016
BL	Bristol PSB	TD_WWC_SIG_AREA
BM	Barnham	TD_SUSS_SIG_AREA	Y	Y	Y
BN	Birmingham New Street	TD_LNW_WMC_SIG_AREA
BP	Basingstoke (Poole - Wool)	TD_WESS_SIG_AREA	Y	Y			Y
BS	Barnes	TD_WESS_SIG_AREA	Y	Y		Y
BX	Basingstoke (WoE)	TD_WESS_SIG_AREA	Y	Y	Y	Y
C1	SWCC Newport ITD	TD_WWM_SIG_AREA	Y	Y	Y
C2	SWCC Vale of Glamorgan ITD	TD_WWM_SIG_AREA	Y	Y	Y
C3	SWCC Shrewsbury North WestCAD	TD_WWM_SIG_AREA	Y	Y
C4	WROC Shrewsbury-Newport	TBD	?	?	?	?	?	?	Planned 2022
C5	WROC North Wales Coast	TBD	Y	Y					Planned 26/03/2018 09/03/2018*
C6	WROC Port Talbot West	TBD	?	?	?	?	?	?	Planned 10/03/2019
CA	Cambridge PSB	TD_ANG_SIG_AREA	Y	Y		Y	Y
CC	Colchester	TD_ANG_SIG_AREA	Y	Y		Y	Y
CD	Castleford13	TD_LNE_NE_SIG_AREA
CE	Crewe PSB	TD_LNW_C_SIG_AREA	Y	Y	Y
CH	Chichester	TD_SUSS_SIG_AREA		Y	Y
CL	Carlisle	TD_LNW_LC_SIG_AREA
CS	Chester PSB	TD_LNW_C_SIG_AREA
CT	Channel Tunnel	TD_KENT_MCC_SIG_AREA	Y
CV	WMSC Cherwell Valley WestCAD	TD_LNW_WMC_SIG_AREA	Y	Y					08/08/2016
CY	WMSC Coventry	TD_LNW_WMC_SIG_AREA	Y	Y	Y
D0	TVSC Temple Meads IECC	TBD	Y	Y	Y	Y			Planned 02/04/2018
D1	TVSC Reading IECC A	TD_WTV_SIG_AREA	Y	Y	Y	Y
D2	TVSC Reading IECC B	TD_WTV_SIG_AREA	Y	Y	Y	Y
D3	TVSC Paddington IECC	TD_WTV_SIG_AREA	Y	Y	Y	Y
D4	TVSC Hayes IECC	TD_WTV_SIG_AREA	Y	Y	Y	Y
D5	TVSC Didcot IECC	TD_WWC_SIG_AREA	Y	Y	Y	Y
D6	TVSC Maidenhead IECC	TD_WTV_SIG_AREA	Y	Y		Y
D7	TVSC Swindon IECC	TD_WWC_SIG_AREA	Y	Y		Y
D9	TVSC Stoke Gifford IECC	TD_WTV_SIG_AREA	Y	Y		Y			30/08/2016
DR	Doncaster	TD_LNE_GN_SIG_AREA
DY	Derby	TD_MC_EM_SIG_AREA	Y	Y
E1	Edgeley No 1	TD_LNW_C_SIG_AREA		Y
EA	Edinburgh IECC A	TD_SE_SIG_AREA	Y	Y	Y	Y
EB	Edinburgh IECC B	TD_SE_SIG_AREA	Y	Y	Y	Y
EC	Edinburgh IECC C	TD_SE_SIG_AREA	Y	Y	Y	Y
ED	Edinburgh IECC D	TD_SE_SIG_AREA	Y	Y	Y	Y
EH	Eastleigh	TD_WESS_SIG_AREA	Y	Y	Y	Y	Y	Y
EK	East Kent (Gillingham)	TD_KENT_MCC_SIG_AREA	Y	Y	Y	Y	Y	Y
EN	Cambridge IECC	TD_ANG_SIG_AREA	Y	Y		Y		Y
ES	TBROC East Sussex MCS	TD_SUSS_SIG_AREA	Y	Y	Y	Y	Y	Y
EX	Exeter	TD_WWC_SIG_AREA		Y
FE	Ferrybridge	TD_LNE_GN_SIG_AREA	Y	Y			Y
FH	Feltham	TD_WESS_SIG_AREA		Y
G1	WSSC Glasgow	TD_SW_SIG_AREA	Y	Y	Y		Y
G2	WSSC Paisley	TD_SW_SIG_AREA	Y	Y	Y	Y	Y
G3	WSSC Motherwell Area WestCAD	TBD	Y	Y		Y			18/04/2017
GD	Guildford	TD_WESS_SIG_AREA
GL	Gloucester ITD	TD_WWC_SIG_AREA
HG	Harrogate IECC	TD_LNE_NE_SIG_AREA	Y	Y			Y	Y
HN	Heaton Norris	TD_LNW_C_SIG_AREA		Y
HT	Havant	TD_WESS_SIG_AREA	Y	Y	Y
IH	Inverness Highlands WestCAD	TBD	Y	Y		Y			05/12/2017*
K2	Kings Cross (Hertford Loop)	TD_LNE_GN_SIG_AREA	Y	Y			Y
KG	EMCC Kettering Area WestCAD	TBD	Y	Y	Y				21/02/2018*
KN	WMSC Kings Norton WestCAD	TBD	Y	Y					07/11/2016
KX	Kings Cross	TD_LNE_GN_SIG_AREA
L2	Lincoln East	TD_MC_EM_SIG_AREA	Y	Y
LA	Lancing	TD_SUSS_SIG_AREA		Y
LB	London Bridge	TD_KENT_MCC_SIG_AREA		Y	Y
LC	WMSC Leamington Corridor	TD_LNW_WMC_SIG_AREA	Y	Y	Y
LN	Lincoln	TD_MC_EM_SIG_AREA	Y	Y	Y
LR	EMCC Leicester	TD_MC_EM_SIG_AREA	Y	Y	Y	Y
LS	Liverpool Street	TD_ANG_SIG_AREA	Y	Y	Y	Y
M0	MRROC Lime Street WestCAD	TBD	?	?	?	?	?	?	Planned 30/07/2018
M1	MRROC Liverpool Area WestCAD	TD_LNW_C_SIG_AREA	Y	Y
M2	MRROC Manchester North WestCAD	TD_LNW_C_SIG_AREA	Y	Y
M3	MRROC Manchester Central WestCAD	TD_LNW_C_SIG_AREA	Y	Y	Y
M4	MRROC Wavertree WestCAD	TBD	?	?	?	?	?	?	Planned 09/05/2018
M5	MRROC East Cheshire	TBD	?	?	?	?	?	?	Planned 2019
M6	MRROC Hope Valley	TBD	?	?	?	?	?	?	Planned 2018
M7	MRROC Manchester Piccadilly	TBD	?	?	?	?	?	?	Planned 2018
M8	MRROC Slade Lane	TBD	?	?	?	?	?	?	Planned 2018
M9	MRROC Blackpool Area WestCAD	TBD	Y	Y					29/01/2018
MA	Maidstone East	TD_KENT_MCC_SIG_AREA		Y
MD	EMCC Mansfield	TD_MC_EM_SIG_AREA	Y	Y	Y
ME	Marylebone IECC	TD_LNW_WMC_SIG_AREA	Y	Y	Y
MH	Machynlleth	TD_WWM_SIG_AREA	Y	Y	Y
ML	Motherwell	TD_SW_SIG_AREA	Y	Y	Y
MO	Morpeth	TD_LNE_NE_SIG_AREA
MP	Manchester Piccadilly	TD_LNW_C_SIG_AREA	Y	Y	Y	Y
MS	Manchester South	TD_LNW_C_SIG_AREA		Y	Y
MZ	Manchester East	TD_LNW_C_SIG_AREA	Y	Y	Y
NE	EMCC Erewash WestCAD	TD_MC_EM_SIG_AREA	Y	Y	Y
NJ	Neasden Jn TD	TBD	?	?	?	?	?	?	2016
NK	North Kent	TD_KENT_MCC_SIG_AREA	Y	Y	Y	Y	Y
NL	Colchester "Norwich-Lowestoft"	TBD	?	?	?	?	?	?	Planned 31/03/2019
NM	EMCC Nottingham WestCAD	TD_MC_EM_SIG_AREA	Y	Y	Y
NS	WMSC New Street Station WestCAD	TBD	?	?	?	?	?	?	Planned 26/12/2021
NX	East London Line	TD_ANG_SIG_AREA	?	?	?	?	?	?
OX	Oxford	TD_WWC_SIG_AREA
PB	Peterborough	TD_LNE_GN_SIG_AREA
PH	Plymouth	TD_WWC_SIG_AREA
PJ	WMSC Proof House Jn WestCAD	TBD	Y	Y					17/12/2017*
PT	Port Talbot	TD_WWM_SIG_AREA
PX	Preston	TD_LNW_LC_SIG_AREA
Q1	ROROC Stratford IECC	TBD	Y	Y	Y	Y			06/11/2016
Q2	ROROC Shenfield IECC	TBD	Y	Y	Y	Y			26/02/2017
R1	Rugby SCC (Watford - Bletchley ITD)	TD_WCS_SIG_AREA	Y	Y	Y	Y	Y
R2	Rugby SCC (Northampton - Rugby ITD)	TD_WCS_SIG_AREA	Y	Y	Y	Y	Y
R3	RYROC Stafford Area WestCAD	TBD	Y	Y					01/09/2015
RA	Radyr	TD_WWM_SIG_AREA
RT	Ridgmont	TD_WCS_SIG_AREA	Y	Y		Y	Y	Y
RW	Rochdale West	TD_LNW_C_SIG_AREA	Y	Y	Y
SC	Scunthorpe	TD_LNE_GN_SIG_AREA
SJ	WMSC Stourbridge	TD_LNW_WMC_SIG_AREA	Y	Y	Y
SK	Stoke On Trent	TD_LNW_C_SIG_AREA	Y	Y	Y	Y	Y
SM	Stirling Middle	TD_SE_SIG_AREA	Y	Y
SO	South Tottenham	TD_ANG_SIG_AREA
SS	Merseyrail IECC	TD_LNW_C_SIG_AREA	Y	Y	Y	Y
SU	Surbiton (Woking)	TD_WESS_SIG_AREA		Y
SV	WMSC Stour Valley WestCAD	TBD	Y	Y					17/12/2017*
SX	Saxmundham	TD_ANG_SIG_AREA	Y	Y		Y	Y
T1	Tyneside 1 IECC	TD_LNE_NE_SIG_AREA	Y	Y	Y
T2	Tyneside 2 IECC	TD_LNE_NE_SIG_AREA	Y	Y	Y
TB	Three Bridges ITD	TD_SUSS_SIG_AREA		Y	Y
TD	WMSC Telford	TD_LNW_WMC_SIG_AREA	Y	Y	Y
TE	Tonbridge	TD_KENT_MCC_SIG_AREA	Y	Y
TH	Thrumpton	TD_LNE_GN_SIG_AREA	Y	Y
TN	EMCC Chesterfield	TD_MC_EM_SIG_AREA		Y
TW	Tweedmouth	TD_LNE_NE_SIG_AREA
TY	Tees Yard (Ryhope)	TD_LNE_NE_SIG_AREA	Y	Y	Y
U2	Upminster 2 IECC	TD_ANG_SIG_AREA	Y	Y	Y	Y
U3	Upminster 3 IECC	TD_ANG_SIG_AREA	Y	Y	Y	Y
UR	Upminster A IECC	TD_ANG_SIG_AREA	Y	Y	Y	Y
VC	London Victoria	TD_SUSS_SIG_AREA		Y	Y
W2	Woking (Farnham)	TD_WESS_SIG_AREA	Y	Y	Y
WA	Warrington PSB	TD_LNW_C_SIG_AREA	Y	Y
WC	Wembley C Sidings								07/06/2015
WD	Winsford	TD_LNW_C_SIG_AREA
WE	Worksop	TD_LNE_GN_SIG_AREA	Y
WG	West Anglia IECC	TD_ANG_SIG_AREA
WH	West Hampstead PSB	TD_MC_EM_SIG_AREA	?	?	?	?	?	?
WI	Wimbledon NCP	TD_WESS_SIG_AREA	Y	Y	Y
WJ	Wembley Mainline (Watford) WestCAD	TD_WCS_SIG_AREA	Y	Y
WK	Wakefield Kirkgate	TD_LNE_NE_SIG_AREA
WL	WMSC Walsall WestCAD	TBD	Y	Y	Y
WN	WMSC Water Orton	TD_LNW_WMC_SIG_AREA	Y	Y
WO	WMSC Wolverhampton WestCAD	TD_LNW_WMC_SIG_AREA	Y	Y
WS	Willesden Suburban	TD_WCS_SIG_AREA
WW	Westbury	TD_WWC_SIG_AREA		Y
WY	Wembley	TD_WCS_SIG_AREA
X0	TBROC Thameslink Core WestCAD	TD_SUSS_SIG_AREA	Y	Y	Y	Y			15/03/2015
X1	TBROC London Bridge Central WestCAD	TD_SUSS_SIG_AREA	Y	Y	Y	Y			05/01/2015
X2	TBROC Charing Cross WestCAD	TBD	Y	Y	Y	Y			04/01/2016
X3	TBROC Cannon Street WestCAD	TBD	Y	Y	Y	Y			30/08/2016
X5	TBROC Sutton Area WestCAD	TBD	Y	Y	Y	Y			Planned 02/04/2018 09/03/2018*
X6	TBROC Streatham Area WestCAD	TBD	Y	Y		Y			03/05/2016
X9	TBROC Lewes Area	TBD	?	?	?	?	?	?	Planned 17/04/2019
XB	Macclesfield	TD_LNW_C_SIG_AREA
XE	Warrington Central	TD_LNW_C_SIG_AREA
XL	Hunts Cross	TD_LNW_C_SIG_AREA
XZ	Liverpool Lime Street	TD_LNW_C_SIG_AREA
Y0	YKROC North Lincs WestCAD	TBD	Y	Y	Y	Y			30/12/2015
Y1	TBD	TBD	?	?	?	?	?	?	Planned 2019-2022
Y2	York IECC 2	TD_LNE_NE_SIG_AREA	Y	Y	Y
Y3	York IECC 3	TD_LNE_NE_SIG_AREA	Y	Y	Y
Y4	YKROC Sheffield WestCAD	TBD	Y	Y	Y	Y			02/05/2016
Y5	YKROC Brough WestCAD	TBD	Y	Y					Planned TBC
Y6	YKROC Huddersfield WestCAD	TBD	Y	Y	Y	Y			18/01/2018*
Y7	YKROC Hartlepool	TBD	?	?	?	?	?	?	Planned 2019
Y8	YKROC Kings Cross	TBD	?	?	?	?	?	?	Planned 03/2020
Y9	YKROC Harrogate-Poppleton	TBD	?	?	?	?	?	?	Planned 2022
YA	YKROC Halifax	TBD	?	?	?	?	?	?	Planned 20/10/2018
YK	York IECC	TD_LNE_NE_SIG_AREA
YO	Yoker IECC	TD_SW_SIG_AREA	Y	Y	Y
ZA	Ashford TDC	TD_KENT_MCC_SIG_AREA
ZB	Bournemouth TDC	TD_WESS_SIG_AREA		Y
ZE	Eastbourne TDC	TD_SUSS_SIG_AREA
ZG	Guildford TDC	TD_WESS_SIG_AREA	Y	Y
ZH	Horsham TDC	TD_SUSS_SIG_AREA
ZR	Rainham TDC	TD_KENT_MCC_SIG_AREA
ZY	Yeovil TDC	TD_WESS_SIG_AREA	Y	Y	Y

Decommissioned

ID	Name	Topic	SIG	RTE	TRS	TRK	PTS	LXG	Abolished
CF	Cardiff	TD_WWM_SIG_AREA							30/12/2015
CM	Carmuirs East	TD_SE_SIG_AREA	Y	Y		Y	Y		~26/12/2017
DN	(Not commissioned)
HM	Healey Mills	TD_LNE_NE_SIG_AREA	Y	Y	Y		Y		~22/01/2018
HU	Huddersfield	TD_LNE_NE_SIG_AREA							~22/01/2018
LE	Leamington Spa	TD_LNW_WMC_SIG_AREA							07/08/2016
NT	Newport PSB	TD_WWM_SIG_AREA							29/10/2012
SA	Saltley	TD_LNW_WMC_SIG_AREA							07/11/2016
SD	Sheffield	TD_LNE_GN_SIG_AREA							02/05/2016
SE	Shenfield IECC	TD_ANG_SIG_AREA	Y	Y	Y				26/02/2017
SH	Slough A	TD_WTV_SIG_AREA		Y					07/04/2015
SI	Stratford IECC	TD_ANG_SIG_AREA	Y	Y	Y				06/11/2016
SN	Swindon A ITD	TD_WWC_SIG_AREA							21/02/2016
VT	Thameslink South	TD_SUSS_SIG_AREA	Y	Y	Y				15/03/2015
WT	Thameslink North	TD_MC_EM_SIG_AREA	Y	Y	Y				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