Signal box prefix codes

A (hopefully) comprehensive listing

'Boxes beginning T

Last update 1 January 2009

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Introduction A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Non-National Rail

Phil Deaves, Swindon, Wiltshire

- - c o n t a c t - m e - -

I am always grateful for additional information, whether entirely new records (particularly historical records), or information to fill in gaps or correct errors, via the email address above.  Thank you.

Code Signal Box Note ELR Mileage Opened Closed Control to
TE Talacre   CNH3 201m 76ch 1903    
T Tallington Gate box ECM1 84m 64ch 1975 29 March 1998 Helpston (H)
TH Tamworth Formerly Tamworth Low Level LEC2 110m 12ch 1910 23 August 2008 Rugby Signalling Centre (NL)
TH Tamworth High Level   DBP1 23m 61ch August 1925   Saltley (SY)
TA Taplow Converted to ground frame on closure MLN1 22m 30ch 30 June 1930 8 December 1963 Slough (S)
TJ Tapton Junction   SPC9 c146m 69ch     Sheffield (S)
T
TC Tattenham Corner   TAT 23m 26ch   25 September 1983 Purley (CU)
T Taunton East Junction Code from 12 May 1986 MLN1 162m 63ch 1931 21 March 1987 Exeter (E)
TE Code to 12 May 1986 WTZ 162m 63ch
TS Tay Bridge South   ECN2 56m 36ch 1887    
TB Unclear whether code used
TY Tees   TSY 12m 70ch 1962    
T At least one shunt signal
D Down automatic signals DSN2 12m 70ch
U Up automatic signals
  Teignmouth   MLN1 208m 78ch by 1880 17 November 1986 Exeter (E)
TE Templecombe   BAE2 112m 2ch 15 May 1938    
DM Down main line automatic signals
DUM Up main line down direction automatic signals
UM Up main line automatic signals
TM Temple Mills Eurostar depot   - 3.15km 2006    
TE Temple Mills East   SDC 4m 54ch     Stratford (S)
TW Temple Mills West   SDC 6m 8ch   1988 Brimsdown (BD)
D Down line automatic signals
U Up line automatic signals
TJ Terminus Junction   CLY   7 October 1878 2 June 1974 Glasgow Central (G)
EX Teynham Crossing Downgraded to gate box 1967: line controlled by Sittingbourne (EV) VIR 47m 78ch ??    
TB Thames Board Mills Crossing Stop boards TLL 16m 38ch 27 May 1996    
T Thames Haven
(also called Terminus ground frame?)		   TFH c30m 18ch     Upminster (UR)
TH Thames Haven Junction   TLL c26m 50ch   19 August 1973 Low Street (L)
TH Theale   BHL 41m 19ch c1920 17 September 1977 Reading (R)
D Theobalds Grove Ground Frames HDT       Liverpool Street (L)
U
T Thetford   ETN 93m 44ch 1883    
T Thingley Junction   MLN1 96m 9ch 1903 23 March 1968 Swindon (SN)
DM Down main line automatic signals
UM Up main line automatic signals
TK Thirsk Code used from 19 September 1965 ECM5 22m 34ch 5 November 1933 20 January 1990 York (Y)
D Down line controlled and automatic signals (from opening to 19 September 1965)
DF Down fast line automatic signals (from 19 September 1965)
DS Down slow line automatic signals (from 19 September 1965)
U Up line controlled and automatic signals (from opening to 19 September 1965).  Slow lines suffixed "S"
UF Up fast line automatic signals (from 19 September 1965)
US Up slow line automatic signals (from 19 September 1965)
T Thoresby Colliery Junction   HIM 17m 21ch 1926    
TM Thorne Moor Unclear if code carried TJG2 c12m 32ch     Doncaster (D)
TH Thornhill Code used from 2002 GSW 77m 58ch 10 October 1943    
TL Thornhill L&NW Junction   MVN2 c39m 70ch     Healey Mills (HM)
T Thornton Abbey Gate box: line controlled by Ulceby (South) Junction (UJ) BAR c103m 11ch      
CZ Thornton Heath   VTB1 8m 50ch   19 December 1976 Three Bridges (T)
TC Thorpe Culvert   GRS4 2m 20ch 1888 8 February 2003 Thorpe Culvert [temporary panel] (TC)
TC Thorpe Culvert [temporary panel]   GRS4 2m 21ch 9 February 2003 18 May 2003 Thorpe Culvert (TC)
TC Thorpe Culvert Reopened original 'box following rebuilding GRS4 2m 20ch 18 May 2003    
TG Thorpe Gates Gate box: line controlled by Selby West (S) HUL3 2m 27ch 1873    
T Thorpe-le-Soken To close: control to pass to Colchester (CO) COC 65m 7ch 1882    
D Down line automatic signals
RD Down line automatic repeater signals
RU Up line automatic repeater signals
U Up line automatic signals
  Thorpe on the Hill   NOB1 27m 28ch 12 May 1907 19 March 1988 Swinderby (S)
TB Thorpes Bridge Junction   MVN2 2m 24ch 1987 7 August 1998 Manchester North (MN)
TH Thorrington Gate box: line controlled by Thorpe-le-Soken (T) COC 59m 43ch ??    
CL Three Bridges   VTB3 29m 34ch   2 July 1983? Three Bridges (T)
CA Automatic signals
T Three Bridges   VTB3 29m 28ch 2 July 1983    
TC Three Counties   ECM1 c35m 56ch     Kings Cross (K)
THS Three Horse Shoes   EMP 91m 5ch 1901    
TS Three Spires Junction Permanently switched out from September 1998 CNN 3m 20ch 28 June 1914 23 February 2003 Three Spires Junction (TS)
TS Three Spires Junction   CNN 3m 19ch 23 February 2003    
T Thrumpton Also known as Retford Thrumpton MAC3 64m 46ch 1889    
D Down line automatic signals
DB Down (Cotham) branch line automatic signals
U Up line automatic signals
UB Up (Cotham) branch line automatic signals
T Thurgoland Sidings   MAC2 31m 61ch?     Line closed
T Thurlstone Crossing   MAC1 27m 8ch?     Line closed
T Thrybergh Junction   WME c7m 73ch     Sheffield (S)
TJ Tibshelf East Junction   TCY1?       Trent (TT)
T Tilbury Riverside   TTE 0m 15ch 1961 8 April 1996  
T Tilehurst   MLN1 38m 44ch 1893 24 April 1965 Reading (R)
TE Tinsley East Junction   WME 2m 68ch   1992 Woodburn Junction (W)
MY Tinsley Main Yard Control Tower   BTJ c160m 10ch     Tinsley Yard (TY)
TP Tinsley Park   BTJ 160m 65ch 29 November 1964   Tinsley Yard (TY)
SY Tinsley Secondary Yard Control Tower   BTJ c160m 60ch     Tinsley Yard (TY)
TW Tinsley West Junction   SMC 2m 54ch     Sheffield (S)?
TY Tinsley Yard   BTJ 160m 2ch 11 April 1965    
WDB Tisbury   BAE2 96m 0ch 12 October 1958 5 February 1967 Gillingham (GM)
WDC Tisbury Gates Downgraded to gate box c1922 BAE2 97m 12ch 4 June 1892   Tisbury (WDB)?
TJ Tiverton Junction   MLN1 179m 11ch   3 March 1986 Exeter (E)
TIV 179m 11ch
T Tollerton Codes used from opening ECM5 9m 40ch 29 January 1961 10 December 1989 York (Y)
DF Down fast line automatic signals (until 28 July 1985)
DS Down slow line automatic signals (until 28 July 1985)
U Up line automatic and semi-automatic signals (until 28 July 1985).  Slow lines suffixed "S"
PE Tonbridge XTD and RTT routes transferred to Ashford (AD), control of TTH remains RTT 41m 77ch 18 March 1962 27 September 1993 (in part) Ashford (AD) (XTD and RTT routes only)
A Automatic signals XTD 29m 24ch
TU Tondu   BAL 2m 70ch 1884    
  Topsham   EMT 4m 23ch c1870 1 February 1988 Exmouth Junction (EJ)
  Torre   TOR 219m 9ch 1922 13 November 1986 Exeter (E)
TE Totley Tunnel East   MAS 154m 62ch 1893    
T Totnes   MLN1 222m 63ch 7 January 1923 9 November 1987 Exeter (E)
TE Toton East   THL       Trent (TT)
WDU Totton   BML2 82m 53ch c1875 28 February 1982 Eastleigh (E)
  Towneley Gate box: line controlled by Preston (PN) FHR6 22m 62ch 1878    
TG Town Green   SJO2 9m 79ch c1940 10 February 1994 Merseyrail (ML)
TP Trafford Park Junction   MAJ c31m 66ch     Manchester Piccadilly (MP)
TI Tram Inn   HNL1 5m 37ch 1894    
TE Tremains East   SWM2 188m 70ch     Port Talbot (PT)
TT Trent   TSN1 120m 1ch 27 September 1969    
T Trent   ECM1 c121m 20ch     Doncaster (D)
T Trimley   FEL 82m 60ch 1891 1988 Trimley [panel] (T)
T Trimley [panel]   FEL 82m 60ch 1988 14 March 1999 Colchester (CO)
TG Tring Shunt Frame   LEC1 c31m 55ch     Bletchley (BY)?
  Tring Sidings   LEC1 31m 37ch 1964    
TL Trowell Junction   TCC c125m 9ch   18 October 1969 Trent (TT)
TSB Trowse Swing Bridge Earlier code for Norwich station area resignalling.  Reduced to bridge control cabin 29 November 1986 LTN2 c123m 38ch c1900 15 February 1987 Trowse Swing Bridge [new] (TSB)
TSB Trowse Swing Bridge [new] Earlier code LTN2 123m 34ch 15 February 1987    
TB Later code (post 2000) for Sheringham line resignalling
T Truro   MLN3 300m 57ch 1899    
TJ Tuffley Junction   BAG2 94m 72ch 7 December 1941 10 August 1968 Gloucester (G)
GC Tulse Hill   BTH1     13 April 1969 Streatham Junciton (BC)
EBN Tunbridge Wells Central Goods   TTH   1932 1984 Tonbridge (PE)
TU Tunbridge Wells West 'B'   GJB2 49m 58ch 1932 6 July? 1985  
U Turkey Street Ground Frame HDT       Liverpool Street (L)
- Tutbury   NSS 24m 13ch 1872    
T Tweedmouth Code to July 1990 ECM7 65m 78ch 10 December 1961    
TW Code from July 1990
D Down direction automatic signals (until 1981)
U Up direction automatic signals (until 1981)
TS Tweedmouth South Code presumed ECM7 c65m 42ch   10 December 1961 Tweedmouth (T)
D Down direction automatic signals
T Twyford   MLN1 31m 7ch 23 October 1961 11 March 1972 Reading (R)
DM Down main line automatic signals
DR Down relief line automatic signals
UM Up main line automatic signals
UR Up relief line automatic signals
TW Twyford West   MLN1 31m 8ch by 1909 23 October 1961 Twyford (T)
TS Ty Croes Gate box: line controlled by Valley (VY) CNH3 254m 32ch 1872    
  Tyne Dock Code unknown, but known to have existed by 1968       30 May 1981? Line transferred to Metro
TS Tynemouth South     8m 20ch from Newcastle   10 August 1980? Line transferred to Metro
T Tyneside   HLK 0m 32ch 15 April 1991    
TY Tyne Yard   ECM5 75m 62ch 21 April 1963 9 May 1991 Tyneside (T)
D Down line automatic signals
U Up line automatic signals
TY1 Tyseley No 1   DCL 126m 40ch 1949    
TY2 Tyseley No 2   DCL       Tyseley No 1 (TY1)?
TY3 Tyseley No 3   DCL       Tyseley No 1 (TY1)?

Introduction A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Non-National Rail

 

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