List of Train Describers

The following list of train describers was last updated on 21st January 2023.

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.

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.

Train Describers

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	TD_LNE_NE_SIG_AREA	✔	✔		✔
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	BAROC Strawberry Hill Scalable		✔	✔	✔	✔			2021-03-30*
B2	BAROC Ascot Scalable		✔	✔	✔	✔			2022-03-30*
BA	Barnsley PSB TD	TD_LNE_NE_SIG_AREA	✔			✔	✔		2021-04-11* (S-Class enabling)
BE	Basingstoke	TD_WESS_SIG_AREA	✔	✔	✔	✔
BG	WMSC Bromsgrove Corridor WestCAD		✔	✔					2016-11-07
BL	Bristol PSB ITD	TD_WWC_SIG_AREA
BM	Barnham DTD	TD_SUSS_SIG_AREA	✔	✔	✔			✔
BP	Basingstoke (Poole - Wool)	TD_WESS_SIG_AREA	✔	✔			✔
BS	Barnes TD	TD_WESS_SIG_AREA	✔	✔		✔
BU	EMCC Burton Area WestCAD		✔	✔				✔	2018-08-17*
BX	Basingstoke (WoE)	TD_WESS_SIG_AREA	✔	✔	✔	✔
C0	TfW CVLICC TAM Area WestCAD		?	?	?	?	?	?	Planned 2023-01-13
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		✔	✔					2018-03-09*
C6	SWCC Swansea Area WestCAD		✔	✔		✔			2019-02-26*
CA	Cambridge ITD	TD_ANG_SIG_AREA	✔	✔		✔	✔
CC	Colchester	TD_ANG_SIG_AREA	✔	✔		✔	✔
CD	Castleford	TD_LNE_NE_SIG_AREA	✔			✔	✔		2021-04-04* (S-Class enabling)
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	✔	✔					2016-08-08
CY	WMSC Coventry WestCAD	TD_LNW_WMC_SIG_AREA	✔	✔	✔
D0	TVSC Bristol Temple Meads Area Scalable IECC		✔	✔	✔	✔			2018-03-29*
D1	TVSC Reading IECC A	TD_WTV_SIG_AREA	✔	✔	✔	✔
D2	TVSC Reading IECC B	TD_WTV_SIG_AREA	✔	✔	✔	✔
D3	TVSC Paddington Area Scalable IECC	TD_WTV_SIG_AREA	✔	✔	✔	✔
D4	TVSC Hayes Area Scalable IECC	TD_WTV_SIG_AREA	✔	✔	✔	✔
D5	TVSC Didcot IECC	TD_WWC_SIG_AREA	✔	✔	✔	✔
D6	TVSC Maidenhead Area Scalable IECC	TD_WTV_SIG_AREA	✔	✔		✔
D7	TVSC Swindon Area IECC	TD_WWC_SIG_AREA	✔	✔		✔
D9	TVSC Stoke Gifford IECC	TD_WTV_SIG_AREA	✔	✔		✔			2016-08-30
DA	TVSC Acton Area Scalable IECC		✔	✔	✔	✔			2021-12-21*
DR	Doncaster PSB TD	TD_LNE_GN_SIG_AREA
DU	Dundee TD								2021-09-29*
DY	EMCC Derby Area WestCAD	TD_MC_EM_SIG_AREA	✔	✔	✔	✔			2018-09-03
E1	Edgeley No 1	TD_LNW_C_SIG_AREA		✔
EA	Edinburgh SCC IECC "A" (Scalable)	TD_SE_SIG_AREA	✔	✔	✔	✔		✔	2022-11-20*
EB	Edinburgh SCC IECC "B"	TD_SE_SIG_AREA	✔	✔	✔	✔			Planned decommissioning 2023-06-10
EB	Edinburgh SCC IECC "B" (Scalable)	TD_SE_SIG_AREA	✔	✔	✔	✔		✔	Planned 2023-06-10
EC	Edinburgh SCC IECC "C"	TD_SE_SIG_AREA	✔	✔	✔	✔			Planned decommissioning 2023-09 to 2023-10
EC	Edinburgh SCC IECC "C" (Scalable)	TD_SE_SIG_AREA	?	?	?	?	?	?	Planned 2023-09 to 2023-10
ED	Edinburgh SCC IECC "D" (Scalable)	TD_SE_SIG_AREA	✔	✔	✔	✔
EE	Edinburgh SCC IECC "E"		✔	✔	✔				2022-11-20*
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		✔
FE	Ferrybridge	TD_LNE_GN_SIG_AREA	✔	✔			✔
FH	Feltham ASC TD	TD_WESS_SIG_AREA		✔					Planned decommissioning 2023-08
G1	WSSC Glasgow Area WestCAD	TD_SW_SIG_AREA	✔	✔	✔		✔
G2	WSSC Paisley ITD	TD_SW_SIG_AREA	✔	✔	✔	✔	✔
G3	WSSC Newton/Whifflet Area WestCAD		✔	✔		✔			2017-04-18
G4	WSSC Motherwell/Carstairs Area WestCAD		✔	✔		✔			2018-08-16*
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		✔	✔		✔			2017-12-05*
IR	Inverness RETB								2023-02-10*
KG	EMCC Kettering Area WestCAD		✔	✔	✔				2018-02-21*
KM	EXROC Mid-Cornwall Workstation		?	?	?	?	?	?	Planned 2023-11
KN	WMSC Kings Norton WestCAD		✔	✔					2016-11-07
L1	Lincoln West		?	?	?	?	?	?	Planned 2023-06-01 to 2023-08-31
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	✔	✔	✔				Planned decommissioning 2023-06-01 to 2023-08-31
LR	EMCC Leicester Area WestCAD	TD_MC_EM_SIG_AREA	✔	✔	✔	✔
M0	MRROC Lime Street WestCAD		✔	✔	✔				2018-07-26*
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		✔	✔					2018-05-07*
M5	MRROC Wavertree (West) WestCAD		✔	✔					2018-12-19*
M6	MRROC Macclesfield Area WestCAD		✔	✔	✔				2022-08-29*
M7	MRROC Crewe South Area		?	?	?	?	?	?	Planned 2023-08
M8	MRROC Crewe Independent Lines		?	?	?	?	?	?	Planned 2023-08
M9	MRROC Blackpool Area WestCAD		✔	✔					2018-01-29
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	TD_LNE_NE_SIG_AREA	✔	✔		✔
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		?	?	?	?	?	?	2016
NK	Ashford North Kent MCS	TD_KENT_MCC_SIG_AREA	✔	✔	✔	✔	✔
NL	Colchester NYL Area MCS		✔	✔	✔	✔	✔		2020-02-04*
NM	EMCC Nottingham WestCAD	TD_MC_EM_SIG_AREA	✔	✔	✔
NS	WMSC New Street Station WestCAD		✔	✔	✔	✔			2022-12-21*
NX	East London Line	TD_SUSS_SIG_AREA	?	?	?	?	?	?
PB	Peterborough	TD_LNE_GN_SIG_AREA							Planned decommissioning 2023-05-27
PH	Plymouth	TD_WWC_SIG_AREA
PJ	WMSC Proof House Jn WestCAD		✔	✔					2017-12-17*
PL	Port Talbot PSB Llanelli WestCAD		✔	✔	✔				Planned 2023-03-28
PT	Port Talbot	TD_WWM_SIG_AREA
PX	Preston PSB TD	TD_LNW_LC_SIG_AREA
Q0	ROROC Crossrail RCC (Core)		✔	✔		✔	✔		2019-02-14*
Q1	ROROC Stratford IECC		✔	✔	✔	✔			2016-11-06
Q2	ROROC Shenfield IECC		✔	✔	✔	✔			2017-02-26
Q3	ROROC West Anglia Area IECC		✔	✔	✔	✔		✔	2019-03-08*
Q4	ROROC Liverpool Street Area IECC		✔	✔	✔	✔			2020-09-13*
Q5	ROROC LT&S (Main) Area IECC		✔	✔	✔	✔		✔	2020-09-27
Q6	ROROC LT&S (Loop) Area IECC		✔	✔	✔	✔			2020-09-27
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		✔	✔					2015-09-01
R4	RYROC Colwich Area WestCAD		?	?	?	?	?	?	Planned 2023-07-15
R5	RYROC Claydon Area		?	?	?	?	?	?	Planned 2024-07
RA	Radyr	TD_WWM_SIG_AREA							Planned decommissioning 2023-01-13
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	Sandhills Area WestCAD	TD_LNW_C_SIG_AREA	✔	✔					2022-03-27
SU	Surbiton (Woking)	TD_WESS_SIG_AREA	✔	✔
SV	WMSC Stour Valley WestCAD		✔	✔					2017-12-17*
SX	Saxmundham (East Suffolk) MCS	TD_ANG_SIG_AREA	✔	✔		✔	✔
T0	TYROC Ashington Workstation		?	?	?	?	?	?	Planned 2023-12
T1	TYROC Newcastle/Gateshead Area WestCAD	TD_LNE_NE_SIG_AREA	✔	✔	✔	✔			2021-12-25*
T2	TYROC Darlington Area WestCAD	TD_LNE_NE_SIG_AREA	✔	✔	✔	✔			2021-12-25*
T3	TYROC Sunderland Area WestCAD		✔	✔		✔			2021-12-25*
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	TD_LNE_NE_SIG_AREA	✔	✔		✔
U3	Upminster 3 IECC	TD_ANG_SIG_AREA	✔	✔	✔	✔
VC	London Victoria	TD_SUSS_SIG_AREA		✔	✔
W2	Woking (Farnham)	TD_SUSS_SIG_AREA	✔	✔	✔
WA	Warrington PSB	TD_LNW_C_SIG_AREA	✔	✔
WC	Wembley C Sidings								2015-06-07
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		✔	✔	✔
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	✔	✔	✔	✔			2015-03-15
X1	TBROC London Bridge Central WestCAD	TD_SUSS_SIG_AREA	✔	✔	✔	✔			2015-01-05
X2	TBROC Charing Cross WestCAD		✔	✔	✔	✔			2016-01-04
X3	TBROC Cannon Street WestCAD		✔	✔	✔	✔			2016-08-30
X7	TBROC East Sussex MCS		✔	✔		✔	✔	✔	2019-12-02*
X8	TBROC Victoria Kent WestCAD		✔	✔	✔	✔			2022-12-21*
XA	TBROC Victoria Sussex WestCAD (link 1)		✔	✔	✔	✔			2022-12-27*
XB	TBROC Victoria Sussex WestCAD (link 2)		✔	✔	✔	✔			2022-12-24*
XE	Warrington Central	TD_LNW_C_SIG_AREA
XL	Hunts Cross	TD_LNW_C_SIG_AREA
Y0	YKROC North Lincs WestCAD		✔	✔	✔	✔			2015-12-30
Y1	YKROC York Area IECC		✔	✔	✔	✔			2018-12-25*
Y2	YKROC Leeds City Area IECC	TD_LNE_NE_SIG_AREA	✔	✔	✔	✔			2018-12-25*
Y3	YKROC Leeds North West Area IECC	TD_LNE_NE_SIG_AREA	✔	✔	✔	✔			2018-12-25*
Y4	YKROC Sheffield WestCAD		✔	✔	✔	✔			2016-05-02
Y5	YKROC Brough WestCAD		✔	✔					2018-11-07*
Y6	YKROC Huddersfield WestCAD		✔	✔	✔	✔			2018-01-18*
Y7	YKROC Halifax WestCAD		✔	✔	✔	✔			2018-10-17*
Y8	YKROC Kings Cross North WestCAD		✔	✔	✔				2018-11-26*
Y9	YKROC Kings Cross South WestCAD		✔	✔	✔				2021-04-14*
YA	YKROC Hartlepool Area WestCAD		✔	✔	✔	✔			2021-02-07
YB	YKROC Middlesbrough Area WestCAD		✔	✔	✔	✔	1		2021-11-15*
YC	YKROC Peterborough Area WestCAD		✔	✔	✔	✔			Planned 2023-08-28
YD	YKROC Huntingdon Area WestCAD		✔	✔		✔			Planned 2023-08-28
YO	Yoker SCC MCS	TD_SW_SIG_AREA	✔	✔	✔	✔	✔
Z1	Test TD		Dummy TD used for testing, data should be ignored						2022-08-02*
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 - Salisbury & Exmouth Jn	TD_WESS_SIG_AREA	✔	✔	?	✔	✔

Decommissioned

ID	Name	Topic	SIG	RTE	TRS	TRK	PTS	LXG	Abolished
BD	Bowesfield	TD_LNE_NE_SIG_AREA	✔	✔					2019-03-09
BN	Birmingham New Street PSB	TD_LNW_WMC_SIG_AREA							2022-12-24*
CF	Cardiff	TD_WWM_SIG_AREA							2015-12-30
CM	Carmuirs East	TD_SE_SIG_AREA	✔	✔		✔	✔		~2017-12-26
DN	(Not commissioned)
DY	Derby	TD_MC_EM_SIG_AREA	✔	✔					2018-09-01
ES	TBROC East Sussex MCS	TD_SUSS_SIG_AREA	✔	✔	✔	✔	✔	✔	2019-12-02
F2	Feltham (Shepperton Branch) IECC		✔	✔		✔			2021-04-02 (commissioned 2019-06-23)
HM	Healey Mills	TD_LNE_NE_SIG_AREA	✔	✔	✔		✔		~2018-01-22
HU	Huddersfield	TD_LNE_NE_SIG_AREA							~2018-01-22
K2	Kings Cross (Hertford Loop)	TD_LNE_GN_SIG_AREA	✔	✔			✔		2018-12-02
KX	Kings Cross	TD_LNE_GN_SIG_AREA							2022-03-24
LB	London Bridge ASC TD	TD_KENT_MCC_SIG_AREA		✔	✔				2020-07-25
LE	Leamington Spa	TD_LNW_WMC_SIG_AREA							2016-08-07
LS	Liverpool Street IECC "A"	TD_ANG_SIG_AREA	✔	✔	✔	✔			2020-09-13
ML	Motherwell PSB TD	TD_SW_SIG_AREA	✔	✔	✔				2019-12-25
NT	Newport PSB	TD_WWM_SIG_AREA							2012-10-29
OX	Oxford PSB	TD_WWC_SIG_AREA							2018-07-07
SA	Saltley	TD_LNW_WMC_SIG_AREA							2016-11-07
SD	Sheffield	TD_LNE_GN_SIG_AREA							2016-05-02
SE	Shenfield IECC (Liverpool Street IECC "C")	TD_ANG_SIG_AREA	✔	✔	✔				2017-02-26
SH	Slough A	TD_WTV_SIG_AREA		✔					2015-04-07
SI	Stratford IECC (Liverpool Street IECC "B")	TD_ANG_SIG_AREA	✔	✔	✔				2016-11-06
SN	Swindon A ITD	TD_WWC_SIG_AREA							2016-02-21
SS	Merseyrail IECC	TD_LNW_C_SIG_AREA	✔	✔	✔	✔			2022-03-27
T1	Tyneside 1 IECC	TD_LNE_NE_SIG_AREA	✔	✔	✔				2021-12-25
T2	Tyneside 2 IECC	TD_LNE_NE_SIG_AREA	✔	✔	✔				2021-12-25
TY	Tees Yard (Ryhope)	TD_LNE_NE_SIG_AREA	✔	✔	✔				2021-02-07
UR	Upminster "A" IECC	TD_ANG_SIG_AREA	✔	✔	✔	✔			2020-09-27
U2	Upminster "B" IECC	TD_ANG_SIG_AREA	✔	✔	✔	✔			2020-09-27
VT	Thameslink South	TD_SUSS_SIG_AREA	✔	✔	✔				2015-03-15
WG	West Anglia IECC (Liverpool Street IECC "D")	TD_ANG_SIG_AREA							2019-03-09
WT	Thameslink North	TD_MC_EM_SIG_AREA	✔	✔	✔				2015-03-15
X5	TBROC Sutton Area WestCAD		✔	✔	✔	✔			2022-12-25* (commissioned 2018-03-09*)
X6	TBROC Streatham Area WestCAD		✔	✔		✔			2022-12-25* (commissioned 2016-05-03*)
XB	Macclesfield	TD_LNW_C_SIG_AREA							2022-08-27
XH	Stafford No 4	TD_LNW_C_SIG_AREA							2015-09-01
XJ	Stafford No 5	TD_LNW_C_SIG_AREA							2015-09-01
XP	Manchester North	?							2015-04-07
XZ	Liverpool Lime Street	TD_LNW_C_SIG_AREA							2018-07-29
Y2	York IECC 2 (Leeds City)	TD_LNE_NE_SIG_AREA	✔	✔	✔				2018-12-25
Y3	York IECC 3 (Leeds North West)	TD_LNE_NE_SIG_AREA	✔	✔	✔				2018-12-25
YK	York IECC	TD_LNE_NE_SIG_AREA							2018-12-25
YZ	YKROC Bowesfield Area WestCAD		✔	✔	?	?	?	?	2021-11-15
ZE	Eastbourne TDC	TD_SUSS_SIG_AREA							2019-11-29

Abbreviations

Code	Meaning
ASC	Area Signalling Centre
DTD	Dual Train Describer
IECC	Integrated Electronic Control Centre
ITD	Information Train Describer
MCS	Modular Control System
NCP	Network Control Processor
PSB	Power Signal Box
RCC	Route Control Centre
ROC	Rail Operating Centre
SB	Signal Box
SCC	Signalling Control Centre
TDC	Train Describer Concentrator
BAROC	Basingstoke ROC
CVLICC TAM	Core Valley Lines Integrated Control Centre - Treherbert, Aberdare, and Merthyr
EMCC	East Midlands Control Centre
EXROC	Exeter ROC
MRROC	Manchester ROC
ROROC	Romford ROC
RYROC	Rugby ROC
SWCC/WROC	South Wales Control Centre/Wales ROC
TBROC	Three Bridges ROC
TVSC	Thames Valley Signalling Centre
TYROC	Tyneside ROC
WMSC	West Midlands Signalling Centre
WSSC	West of Scotland Signalling Centre
YKROC	York ROC