Signal box prefix codes

A (hopefully) comprehensive listing

'Boxes beginning S

Last update 6 November 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
SA St Albans   SPC1 19m 64ch 1892 1 December 1979 West Hampstead (WH)
SA St Andrews Junction [Bristol]   AMB 15m 79ch 9 May 1910    
Z "Creep" signals at Bristol Bulk Handling Terminal
SA St Andrews Junction [West Midlands]   SKN 41m 19ch     Saltley (SY)
  St Austell   MLN3 286m 34ch 1905 22 March 1980 Par (PR)
SB St Bees   CBC1 70m 22ch 21 February 1891    
SB St Blazey   NEW 282m 19ch 1908    
B St Botolphs   STB c59m 10ch     East Gate Junction (EG)
WDN St Denys   BML1 77m 12ch 1902 11 October 1981 Eastleigh (E)
WA Automatic signals
SD St Dunstans Unclear if code carried LBE4 c191m 68ch     Mill Lane Junction (M)
SE St Enoch   SSR   14 May 1933 26 November 1967 High Street Junction (HS) (part)/closed (remainder)
SE St Erth   MLN4 320m 67ch 1899    
SF St Fagans Code used before downgrading to gate box 23 April 1966: line now controlled by Cardiff (C) SWM2 174m 34ch      
SG St Germains Reduced to gate box 20 November 1977 ECM8 11m 52ch   29 September 1985 Edinburgh (EA)
  St Germans   MLN2 256m 23ch 2 July 1973? 1998? Plymouth (P)
SH St Helens Station   SBH2 5m 20ch 1891    
SJB St James Bridge Closed 1965 or 1966 LEN3 100m 23ch     Gateshead (G)
SD St James Deeping   WEB 83m 29ch 1876    
SJ At least one signal
JD Small number of signals
S St James Junction   PED5 c22m 38ch     Doncaster (D)
SJ
L St Johns   XTD c5m 52ch 30 June 1929 8 February 1976 London Bridge (L)
A Automatic signals
SL St Leonards West Marina   WJB 32m 56ch 1891 1997 Bo Peep Junction (BJ)
WBH St Margarets   RDG1 10m 61ch 1882 10 November 1974 Feltham (F)
SM St Margarets [Herts] Codes used from 17 January 1960 HEB 20m 23ch 1887 27 May 2003 Liverpool St (L)
RSM Repeater signals
U Up line automatic signals
  St Marys Reduced to gate box 5 October 1970: line controlled by Gloucester (G) SWM1 98m 65ch c1870    
SMG St Mary's Goods Yard     3m 16ch April 1938 20 April 1980 Derby (DY)
SN St Neots   ECM1 c51m 30ch 1898 1977 Peterborough (P)
SP St Pancras   SPC1     3 July 1982 West Hampstead (WH)
D Down line automatic signals
CQ Salfords   VTB3 23m 58ch   1975 Earlswood (CR)
SY Salisbury   BAE1 83m 38ch 19 August 1981    
RWA Repeater to automatic signals
WA Automatic signals
SG Salop Goods Junction   LLI 157m 71ch 1901    
  Salthouse Junction   CBC1 27m 57ch     Barrow in Furness (BF)
DLB 27m 57ch
SY Saltley   DBP3 40m 38ch 11 August 1969   West Midlands Signalling Centre (LJ/WM) (in part)
S Saltmarshe   TJG2 3m 49ch 1905    
SA "Official" code, not seen on site
D Down direction automatic signals
U Up direction automatic signals
SK Salwick   PBN 5m 3ch 1889    
SH Sandbach   CMP1 162m 61ch 5 June 1959 11 March 2006
(last used 11 December 2005)		 Manchester South (MS)
RSH Repeater signals
  Sanderstead   SCU1 12m 15ch   November 1985 Three Bridges (T)
  Sandhills See Merseyrail (ML)
SW Sandwich   BME2 86m 38ch 1938    
S Sandy   ECM1 c43m 70ch     Peterborough (P)
ST Sandycroft   CNH3 184m 73ch 1900 24 January 2005 Chester (CR)
SW Sawbridgeworth   BGK       Liverpool Street (L)
D Down line automatic signals
RSW Repeaters to controlled signals
U Up line automatic signals
  Saxby Junction Closed after being 'switched out' for many years GSM2 101m 53ch 1892 6 February 2005 Whissendine
SY Saxilby Up signals SPD3 88m 42ch 1939    
S Down signals
SM Saxmundham   ESK 91m 5ch 1881    
S Code not confirmed
S Scopwick Code carried by at least one signal.  Downgraded to gate box 30 April 1989 SPD2 70m 49ch 1937    
SK Unclear whether code used
SD Scotswood Code used from 6 February 1966 NEN 2m 69ch   27 February 1983 Newcastle (N)
D Down line automatic signals
RD Banner repeaters to down line automatic signals
U Up line automatic signals
SG Scout Green Code used from 1 April 1973 CGJ7 35m 12ch   14 April 1973 Carlisle (CE)
SN Scremerston Code used from 10 April 1960 ECM7 63m 46ch   15 March 1981 Tweedmouth (T)
D Down line automatic signals
U Up line automatic signals
- Scropton   NSS 22m 53ch c1886    
S Scunthorpe   DOW 23m 27ch 1 April 1973    
S Scunthorpe And Frodingham   DOW c22m 50ch   1 April 1973 Scunthorpe (S)
B Scunthorpe BSC Coal Handling Plant   DOW c24m 30ch      
BSC Scunthorpe BSC Terminal   SAN 0m 69ch      
H Scunthorpe Hump Draw ahead signals DOW 23m 70ch 1972    
RH Approach to draw ahead signals
RRH
RRRH
A Seabanks Codes possibly used with ground position light signals       25 July 1987 Dawdon (DN)
B
  Seacroft Gate box GRS4 8m 2ch     Skegness
SF Seaford Permanently switched out June 1996 STS 58m 63ch 1895 18 January 2002 Newhaven Harbour (NH)
S Seaham At least one signal.  To become gate box LEN3 84m 44ch 1905   Tees Signalling Control Centre (NS) (proposed)
BC Seaham Colliery [British Coal]       13 December 1986?   Now closed
SR Seamer Code from 5 November 2000 YMS 39m 17ch 1910    
SE Code when named Seamer East (to 5 November 2000)
E Earlier Seamer East code (from 1984)
SR Seamer [temporary panel]   YMS 39m 18ch 9 April 2000 5 November 2000 Seamer (SR)
SW Seamer West   YMS 38m 63ch 1906 9 April 2000 Seamer [temporary panel] (SR)
HBS 50m 43ch
SC Selby Canal   TCW1 173m 50ch   9 April 1972 Selby South (S)
SD Selby D Ground Frame Renamed from Selby Dock Ground Frame 1972         Selby Panel (S)
C Selby Mine NCB Control Room Stone Bunker line signals
(also had draw-ahead signals in colliery sidings lettered SA to SF, letters arranged vertically, with no number)		 HUL3 c5m 60ch     Sidings closed
B Draw ahead signals
D Draw ahead signals
S Siding signals
SN Selby North Code not certain       18 April 1971 Selby South (SS)
SS Selby South Original code HUL1 31m 10ch   29 April 1973 Selby Panel (S)
S Code from 1972 when panel temporarily fitted and renamed Selby
S Selby Panel Selby West until 29 April 1973 when panel transferred from Selby South HUL3 0m 40ch 1870    
U Up line automatic signals
  Selby Swing Bridge   HUL2 30m 70ch 1891    
S Selhurst Depot   LBW 9m 0ch 1984, permanent location 1985    
SUY Depot shed protection signals
SJ Selhurst Junction   VTB1     21 March 1954 Gloucester Road Junction (CY)
CA Automatic signals
SD Sellafield   CBC1 63m 76ch 1918    
S Unclear whether code used
SG Selling Preserved at Eythorne (East Kent Light Railway) FDM 55m 21ch c1870 1995 Faversham (EY)
SO Selly Oak Reduced to ground frame 6 September 1969 BAG1 45m 62ch by 1915 12 August 1973 Saltley (SY)
SN Selsdon   WDS 14m 44ch   1 April 1984 Three Bridges (T)
SJ Settle Junction   SKW1 234m 42ch 14 September 1913    
SK Seven Kings   LTN1 c8m 30ch     Liverpool Street (L)
NE Sevenoaks Code used from opening XTD 21m 76ch 4 March 1962 28 June 1993 Ashford (AD)
A Automatic signals
SS Seven Sisters Junction   HDT 5m 40ch 1905 26 November 2001 Liverpool St (L)
D Down line automatic signals
U Up line automatic signals
SBJ Severn Bridge Junction   WSJ2 171m 33ch 1903    
  Severn Tunnel East   SWM2 148m 42ch 2 June 1942 5 July 1969 Newport (N)
DH Severn Tunnel Junction Down Hump Yard   SWM2 148m 62ch 1 October 1939 1970 Newport (N)
TW Severn Tunnel West Code used from 1 November 1968 BSW 15m 05ch by 1920 5 July 1969 Newport (N)
SE Seymour Junction   BAC2 152m 21ch 1963 Disused since 2006
(Still in sectional appendix in 2008)		  
SH Shaftholme Also called Shaftholme Junction ECM2 160m 22ch 1958 26 October 1980 Doncaster (D)
WY Shalford   RSJ 40m 78ch 1954 30 December 1998 Guildford (GD)
SQ Shap Quarry Code used from 18 March 1973 CGJ7 c37m 68ch   31 March 1973 Carlisle (CE)
SK Sharnbrook   SPC2 56m 46ch   1 August 1981 West Hampstead (WH)
S Shawfield   WCM2 100m 14ch   8 April 1973 Glasgow Central (G)
SW Shaw Station   MPR3 10m 5ch c1925 3 October 2009  
SL Shepcote Lane Junction   BTJ 161m 13ch     Woodburn Junction (W)
S Sheffield   TJC1 158m 29ch 20 January 1973    
D At least one shunt signal at Roundwood
GF Ground frame-controlled signals
N At least one shunt signal near Aldwarke
SA Aldwarke area signals
SN Sheffield North Junction   TJC1 c158m 54ch   20 January 1973 Sheffield (S)
S1 Sheffield No 1   MAC3 40m 61ch   25 March 1979 Line closed
S2 Sheffield No 2   MAC3 41m 0ch?   c. January 1969 Line closed
S3 Sheffield No 3   MAC3 41m 38ch   ?? Line closed
S4 Sheffield No 4   MAC3 41m 57ch   c13 September 1986 Woodburn Junction (WJ)
RS4 Banner repeater signals
S5 Sheffield No 5 Downgraded to ground frame 3 October 1965 MAC3 41m 62ch?   ?? Line closed
S6 Sheffield No 6 Downgraded to ground frame 3 October 1965 MAC3 42m 5ch?   ?? Line closed
SS Sheffield South Junction   TJC1 c158m 32ch   20 January 1973 Sheffield (S)
S Shelford   BGK c52m 28ch     Cambridge (CA)
S Shenfield   LTN1 20m 9ch 1937 17 May 1981 Shenfield [new] (S)
DL Down Southend loop automatic signals
DS Down Southend line automatic signals
RDS Distant to down Southend line automatic signals
RS Distant signals
RUS Distant to up Southend line automatic signals
US Up Southend line automatic signals
S Shenfield [new]   LTN1 20m 16ch 17 May 1981 30 August 1993 Liverpool St (L)
DM Down main line automatic signals
UE Up electric line automatic signals
SL Shepcote Lane   BTJ c161m 15ch 7 December 1964 8 November 1992 Woodburn Junction (WJ)
ED Shepherds Lane   ATL 5m 49ch 8 March 1959 29 November 1981 Victoria SC (VS)
VIR 2m 76ch
SH Shepherds Well   FDM 71m 52ch 1878    
S Shepreth   SBR c49m 67ch 1878 26 February 1983 Cambridge (CA)
SBJ Shepreth Branch Junction   BGK 53m 6ch   26 February 1983 Cambridge (CA)
SBR 55m 26ch
  Sherborne Downgraded to gate box 4 January 1970: line controlled by Yeovil Junction (YJ) BAE2 118m 0ch 18 December 1960    
SN Sherburn in Elmet North   NOC 12m 70ch   10 October 1982 Milford (M)
S Sherburn in Elmet South   NOC 12m 38ch   10 October 1982 Milford (M)
SS  
SH Shettleston Code used from 1960 NEM2 3m 30ch 31 July 1904 28 July 1991 Yoker (YS)
S Shields Junction No.1 Code used from 1966 AYR1 c1m 2ch 6 August 1894 2 April 1967 Glasgow Central (G)
S Shildon Renamed from Shildon South c2 September 1967 DAE1 8m 26ch 1887    
N Shildon North   DAE1   1960s June 1986? Shildon (S)
SN Shildon North   DAE1     2 September 1967? Shildon North (N)?
BJ Shipley Bingley Junction   TJC3 205m 76ch 1907 25 July 1994 Leeds (L)
BR Shipley Bradford Junction   SBF 206m 1ch 1907 25 July 1994 Leeds (L)
BBIB 0m 0ch
LJ Shipley Leeds Junction   TJC3 c205m 54ch   20 July 1975 Guisley Junction (G)
SH Shippea Hill   ETN 77m 26ch 1883    
SJ Shirebrook Junction   PSE 145m 14ch 1 January 1899    
  Shirebrook Sidings Replaced 'box destroyed by fire 27 June 1971 PSE 144m 7ch   c1993 Kirkby Summit (KS)
  Shirebrook Station   PSE 144m 79ch 1890 January 1998 Shirebrook Junction (SJ)
  Shirehampton   CNX 7m 48ch 13 August 1905 17 October 1970 Bristol (B)
SS Shireoaks [station] Still available for emergency level crossing control MAC3 54m 56ch 1874 13 December 1997 Worksop (WP)
SE Shireoaks East Junction   MAC3 55m 62ch 1914 6 December 1997 Worksop (WP)
SH Shirley   TSB 3m 66ch 1907    
SH Shoeburyness   FSS3 39m 23ch   9 July 1995 Upminster (UR)
R Banner repeater signals
SW Shoeburyness West Shunter's Control Panel   FSS3   1995?   Upminster (UR)
CCG Shoreham By Sea 'A'   BLI1 5m 48ch by 1910 1988 Lancing (LG)
  Shoreham [Kent]   SBJ 22m 52ch   21 February 1971 Victoria SC (VS)
EH Shortlands Junction   VIR 9m 56ch 31 May 1959 19 June 1982 Victoria SC (VS)
S Shunters Bothy (Corkerhill CSMD) Code used from 1984 CNL c3m 11ch 1984    
ZZB2 c3m 11ch
S Sibsey   GRS3 112m 7ch 1888    
X Sidcup   HDR     1970 Dartford (D)
S Sighthill Junction Code used from 1960 SGN 0m 61ch 28 November 1886 25 December 1998 Cowlairs (CC)
ST Silecroft   CBC1 48m 12ch 1923    
SM Silk Mill Crossing   MLN1 164m 35ch 1940 21 March 1987 Exeter (E)
SG Singer Code used from 1959 NEM5 8m 53ch 7 November 1907 2 July 1989 Yoker (YY)
  Singleton   PBN 12m 32ch 1879   Poulton No 3 (PT)
EV Sittingbourne   VIR 44m 73ch 24 May 1959    
A Automatic signals
  Skegness   GRS4 9m 5ch 1883    
S Skellow Also known as Skellow Junction.  Code used from 8 March 1970 CJS 160m 59ch   16 August 1981 Doncaster (DS)
SKA 0m 61ch
SJ Skelton Junction   WJP1 30m 9ch   22 July 1991 Deansgate Junction (DJ)
S Skelton Junction [York] Code used from opening ECM5 1m 50ch 8 June 1941 11 May 1989 York (Y)
SJ Code in use by 1988
U Up line automatic signals (opening until 13 March 1977).  Slow lines suffixed "S"
UF Up fast line automatic signals (13 March 1977 until 1980s)
US Up slow line automatic signals (13 March 1977 until 1980s)
SW Skew Bridge   CGJ5 c20m 45ch   3 February 1973 Preston (PN)
SK Skiers Spring   SHB 167m 66ch 1990 10 April 1998 Barnsley (BY)
  Skipton Station North   TJC3 221m 33ch 1915 22 October 1994 Leeds (L)
  Skipton Station South   TJC3 221m 13ch 1906 22 October 1994 Leeds (L)
SG Slade Green Control Room Depot control panel NKL 15m 60ch 1991? (by 14 December 1992)    
DE Berthing shed protection signals
LE
SL Slade Lane   CMP2     12 December 1959 Manchester London Road (LR)
S Slateford Junction Code used from 1960 ECA3 99m 19ch 18 December 1960 17 August 1981 Edinburgh (ES)
SE Sleaford East   GRS2 120m 57ch 1882    
SN Sleaford North Code carried by at least one signal SPD2 63m 47ch 1882    
SS Sleaford South Code carried by most but not all signals SPD2 62m 15ch 1957    
SW Sleaford West   GRS2 120m 33ch c1880    
SE Sleights East 'Box preserved at Embsay PBS1 134m 76ch 3 April 1892 6 August 2007 East Midlands Signalling Centre (PK)
S Slough   MLN1 18m 44ch 14 October 1963    
DM Down main line automatic signals
ES ES1 present (bagged over) at Windsor & Eton Central
UM Up main line automatic signals
Z Draw ahead signals at Hayes
SN Slough New IECC   MLN1 18m 45ch 22 October 1992    
SW Slough West   MLN1 18m 68ch by 1906 14 October 1963 Slough (S)
SLO 0m 1ch
SH Small Heath No 1   DCL 127m 14ch     Saltley (SY)
SD Smeafield Code used from 10 April 1960 ECM7 54m 79ch   9 December 1973 Belford (BD)
D Down direction automatic signals
U Up direction automatic signals
SW Smethwick West   GSJ1 4m 5ch 17 April 1966 (reopened)   Stourbridge Junction (SJ)
SB Smithy Bridge   MVN2 12m 66ch 1907    
S Snaith Gate box WAG1 68m 10ch   14 June 1986 Goole (G)
SR Snaith Road Gate box WAG1 70m 17ch   14 June 1986 Goole (G)
  Sneinton Gate box from 7 December 1969: line controlled by Trent (TT) NOB1 0m 34ch 26 July 1914    
  Snelland   NOB3 32m 15ch   4 November 1989 Wickenby (W)
EDM Snodland   PWS2 36m 65ch c1870    
SC Snowdown Colliery   FDM 69m 73ch 1953 28 February 2005 Shepherds Well (SH)
EP Sole Street   VIR 26m 69ch   1972 Rochester (ER)
A Automatic signals
  Soham   SOB 7m 61ch 1878 4 May 1992 Cambridge (CA)
SB Somerleyton Swing Bridge   NOL 17m 72ch 1904    
EJ Southall East Junction   MLN1 8m 58ch   11 May 1968 Old Oak Common (OO)
ES Southall East Station   MLN1 9m 1ch   11 May 1968 Old Oak Common (OO)
WJ Southall West Junction   MLN1 9m 57ch by 1906 11 May 1968 Old Oak Common (OO)
WS Southall West Station   MLN1 9m 15ch   11 May 1968 Old Oak Common (OO)
WDS Southampton Central   BML2 79m 28ch 2 June 1935 8 November 1981 Eastleigh (E)
WFO Southampton Tunnel Junction   BML2 78m 28ch   2 October 1966 Northam Junction (WDQ)
CCT Southbourne   TBH2 34m 19ch 15 February 1928 26 September 1991 Chichester (CC)
D Southbury Sidings Ground Frame HDT       Liverpool Street (L)
U
S Southcote Junction   BKE 37m 68ch c1896 24 April 1965 Reading (R)
UW Up Westbury line automatic signals BHL 37m 68ch
CV South Croydon   VTB2 11m 37ch 8 May 1955 1 April 1984 Three Bridges (T)
SC Southend Central   FSS2 35m 47ch 1932 9 July 1995 Upminster (UR)
S Southend Victoria   SSV 41m 25ch 1938 1 September 1992 Liverpool St (L)
SD Earlier code
SJ Southerham Junction   KJE2     18 September 1976 Lewes (LW)
DSJ Distant signals KJE3  
G South Gosforth Tyne & Wear Metro control centre.  Code applied to certain signals 1980-1989 when shared running occurred - 0.125km 18 May 1980    
SG South Gosforth Formerly South Gosforth East.  Codes used from 1965.  Some signals also had suffix X, the meaning of which is unclear   3m 10ch from Newcastle   23 January 1978? Line transferred to Metro
D Down line automatic signals
DB Down Benton line automatic signals
SGE Code possibly used 1964-1965 when named South Gosforth East
U Up line automatic signals
SH South Hampstead   CWJ 2m 18ch   10 December 1988 Willesden Suburban (WS)
SK South Kenton   CWJ 9m 26ch   10 December 1988 Willesden Suburban (WS)
C South Kirkby Colliery
(also had draw-ahead signals in colliery sidings lettered LA to LC (line B) and DD to DF (discharge hopper line), with no number)		   SKB       Line closed
DH Discharge Hopper signals
SK South Kirkby Junction Also known as South Kirkby.  Code used from November 1970 DOL1 c165m 74ch   22 May 1971 Leeds (L)
  South Liberty Junction   MLN1 121m 8ch ?? 4 December 1971 Bristol (B)
S South Pelaw           Tyneside (T)?
SP
ST Southport Station   HXS3 18m 21ch 1917 20 March 1994 Merseyrail (ML)
WBS3 35m 15ch
SS South Shields Code used by 1963       31 March 1968 Harton (H)
S South Tottenham Station Junction Panel fitted 2 November 2009 TAH1 5m 71ch 1894    
NT South Wales Control Centre       4 January 2010 (planned)    
SW South West Sidings Shunt frame         Willesden New (WN)?
SG Spalding Formerly Spalding No 1 SPD1 44m 21ch 1921    
S Original code
  Speeton Downgraded to gate box 1 January 1973 HBS 37m 34ch   12 December 1988 Bridlington Quay (BQ)
SE Speke Junction   WJL3 187m 15ch 1907    
SP Spellbrook Nameboard had Spelbrook BGK 28m 19ch 1898 29 October 2003 Liverpool St (L)
D Down line automatic signals
RD Repeater to down line automatic signals
U Up line automatic signals
SB Spital Bridge   ECM1 c76m 52ch     Peterborough (P)
SJ Spital Junction   ECM1 c76m 52ch   2 December 1972 Peterborough (P)
SY Spital Yard   ECM1 c76m 60ch     Peterborough (P)
  Spittal Gate box: line controlled by Tweedmouth (TW) ECM7 65m 1ch      
SS Spondon Station   SPC6 125m 74ch 26 May 1918 19 December 1988 Derby (DY)
SL Spon Lane Downgraded to shunt frame 8 January 1966: line controlled by Birmingham New Street (NS) RBS2 4m 30ch     Birmingham New Street (NS)
SP Spooner Row   ETN 111m 27ch 1881    
SR Unclear whether code used
S  
SV Spring Vale   RBS2 10m 45ch     Wolverhampton (WN)
SD1 Stafford No 1   LEC3 133m 0ch     Stafford No 4 (SD4)
SD2 Stafford No 2   LEC3 133m 12ch     Stafford No 4 (SD4)
SD3 Stafford No 3 Code presumed LEC3       Stafford No 4 (SD4)
SD4 Stafford No 4   LEC3 133m 32ch 1960    
SD5 Stafford No 5   LEC3 133m 57ch 1952    
ST Stainforth Junction Code used from 4 June 1972 DOW 6m 37ch   29 June 1980 Doncaster (D)
  Stainton Gate box NOB3 33m 60ch     Langworth (L)
S Stallingborough   MAC3 104m 71ch 1884 1 October 2007 Stallingborough (ST)
ST Stallingborough New 'box on opposite side of line MAC3 104m 72ch 1 October 2007    
SE Stalybridge   MVL2 7m 52ch 1886   Manchester East Signalling Control Centre (SE) (proposed)
SC Stamford Crossing Code from March 1961.  Downgraded to gate box September 1961: line controlled by Little Mill (LM) ECM7 40m 38ch   15 April 1978 Alnmouth (A)
SJ Standish Junction   CGJ5 c9m 34ch     Warrington (WN)
SJ Standish Junction   BGL2 100m 6ch     Gloucester (G)
S Stanford-Le-Hope   TLL c27m 16ch     Upminster (UR)
S Stanley Junction Code to 2002 HGL2 7m 8ch 1961    
SJ Code from 2002
ST Stanlow & Thornton Permanently switched out from 6 August 2005 HHJ 6m 4ch 1941 11 February 2008 Ellesmere Port (EP)
S Stannington Code used from June 1962 ECM7 13m 74ch   1 March 1991 Morpeth (M)
D Down line automatic signals (until 1977)
U Up line automatic signals (until 1977)
SG Stanton Gate North Shunt Frame Out of use from 2002 TCC 123m 65ch 19 October 1969 June 2006  
SF Stanton Gate South Shunt Frame Code not confirmed TCC 123m 36ch      
SGF  
S Stanway   LTN1 c49m 0ch   10 December 1961 Colchester Station (CS)
SS Stapleford & Sandiacre Downgraded to shunt frame 18 October 1969; line controlled by Trent (TT) TCC 122m 35ch 4 September 1949 9 October 2009 East Midlands Signalling Centre (TC)
SE Staplehurst   XTD 41m 65ch 1 April 1962 1993 Ashford (AD)
A Automatic signals
SR Stapleton Road   BSW 1m 67ch 25 April 1920 17 October 1970 Bristol (B)
S Unclear if code used
SB Starbeck Code from 2007 HAY1 18m 23ch      
S Earlier code
SK Earlier code
SS Code when named Starbeck South
ZC Star Bridge   RED2 18m 41ch   1983 Redhill 'A' (RH)
CS Star Lane   VTB2 16m 64ch 1899 22 November 1978 Three Bridges (T)
SK Staythorpe Crossing   NOB1 14m 21ch 8 October 1950    
SX At least one signal reading to Power Station sidings
SC Code not confirmed
SD1 Stechford No 1 Downgraded to shunt frame 2 July 1966: line controlled by Birmingham New Street (NS) RBS1 108m 78ch     Birmingham New Street (NS)
SD Shunt frame code
SD2 Stechford No 2   RBS1 c109m 17ch   2 July 1966 Birmingham New Street (NS)
NS Temporary code until taken over by Birmingham New Street
SC Steetley Colliery Sidings   PSE       Line closed
S Steeton   TJC3 215m 3ch 31 October 1924? 29 October 1989 Kildwick (K)
D Down line automatic signals
SJ Stenson Junction   DBP1 4m 50ch 28 March 1954 28 June 1969 Derby (DY)
ST Steventon Reduced to gate box 17 May 1965 MLN1 56m 57ch 1 April 1928 27 January 1974 Reading (R)
UM Up main line automatic signals
SY Stewartby Thought that code not carried on signals BBM 11m 17ch   6 September 2004 Marston Vale (MV)
S Stewarts Lane   BSF1 1m 34ch   17 May 1980 Victoria SC (VS)
SL BSP 1m 34ch
  Stillington   STF 3m 71ch   18 February 1968 Norton on Tees West (NW)
SM Stirling Middle Code used from 1999 SCM3 118m 8ch 4 August 1901    
SK Stirling-Kincardine route
SN Stirling North Code used from 2002 SCM3 118m 38ch 25 November 1900    
S Stobcross Junction   ARG2 c3m 73ch 1909 1965 Line closed.  Reopened 1979 controlled from Hyndland (HF)
SJ Stockport Junction Later code HAJ 4m 61ch   10 December 1984 Guide Bridge (GB)
S Earlier code
S1 Stockport No 1 Code to 3 September 2004 CMP2 182m 73ch 1884    
ST1 Code in use by 1989
S2 Stockport No 2 Code to 3 September 2004 CMP2 183m 8ch 1890    
ST2 Code in use by 1989
S Stocksfield   NEC2 c13m 11ch   25 February 1969 Prudhoe (P)
S Stoke   ECM1 100m 8ch     Peterborough (P)
SC Stoke Canon Crossing   MLN1 190m 16ch 1874 9 December 1985 Exeter (E)
SE Stoke Gifford East Codes used from 8 June 1970 SWB 111m 44ch 1 May 1903 20 February 1971 Bristol (B)
DB Down Badminton line automatic signals
UB Up Badminton line automatic signals
  Stoke Gifford West   SWB 111m 76ch 1 May 1903 20 February 1971 Bristol (B)
SH Stoke Hammond   LEC1 c44m 43ch     Bletchley (BY)
SE Stoke On Trent panel   CMD2 19m 61ch July 1966 25 May 2002 Stoke on Trent Signalling Centre (SOT)
SER Repeater signals
SOT Stoke On Trent Signalling Centre   CMD2 19m 61ch 27 May 2002    
SC Stafford-Crewe section of WCML
NS Norton Bridge-Stone section
CH Former Colwich area.  Code used from 12 June 2005
SY Stoke Yard Shunt Frame Roughly opposite panel CMD c19m 61ch   December 1984 Stoke on Trent panel (SE)?
S Stonea   EMP 82m 4ch 1984    
SP Stonebridge Park   CWJ 6m 75ch   10 December 1988 Willesden Suburban (WS)
ST Stone Crossing Gate box: line controlled by Dartford (D) HDR 19m 14ch c1904    
EBH Stonegate   TTH     1984 Robertsbridge (RB)
SV Stonehaven Code used from 2002 ECN5 224m 75ch 24 May 1901    
SJ Stone Junction   CMD2 c27m 5ch   16 July 1966 Stoke on Trent panel (SE)
SS Stora Sidings Ground Switch Panel   TLL 9m 54ch 27 May 1996    
SJ Stourbridge Junction   OWW 142m 25ch 1901    
S Stourton "Temporary" 'box when opened! TJC3 193m 17ch 5 July 1981 28 July 2002 York (S)
ST Stowmarket Reduced to gate box 19 May 1985: line controlled by Colchester (CO) LTN1 80m 53ch 1882    
SP Stow Park Code not confirmed SPD3 93m 12ch 1877    
S Code not confirmed; quoted in RSSB report
SC Strafford Crossing   PED2 4m 30ch?      
SR Strand Road Ground Frame [Preston]   PSR2 0m 43ch   1990s?  
SH Stranraer Harbour Code used from 2002 STR4 53m 73ch 24 November 1897    
S Stranton   LEN3 71m 22ch 1911    
S Stratford   LTN1 3m 79ch 1949 6 April 1999 Liverpool St North London Lines (S)
RS One down line shunt signal at Temple Mills
SE Stratford Eastern   LTN1 c4m 12ch September 1949   Stratford (S)
S
DE Down electric line automatic signals
DM Down main line automatic signals
UE Up electric line automatic signals
UM Up main line automatic signals
  Stratford Upon Avon East   HSA 9m 17ch 1933 5 April 1998 Bearley West Junction (BJ)
SW Stratford Western   LTN1 c3m 57ch     Stratford (S)
VZ Strawberry Hill Carriage Sidings Code used from 23 October 2008 SHF        
SC Streatham Common   VTB1     12 October 1952 Streatham Junction (BC)
CA Automatic signals
FC Streatham Hill   BBJ 5m 46ch   19 November 1967 Balham (DC)
BC Streatham Junction   VTB1 6m 35ch 12 October 1952 9 August 1981 Victoria SC (VC)
CA Automatic signals
S Streethouse Downgraded to gate box 17 May 1969 WAG1 52m 10ch   22 March 1987 Oakenshaw (O)
S Strensall Code used from 28 February 1988 YMS 6m 49ch 1901    
  Strensall No 1   YMS 6m 0ch   5 February 1989 Strensall (S)
SN Stretton   SPC8 145m 34ch   11 October 1969 Trent (TT)
EQ Strood Junction   HDR   7 June 1959? 1971 Dartford (D) and Rochester (ER)
A Automatic signals VIR 32m 69ch
ST Sturry Code when restored to block post 2003 ACR 72m 59ch 1893    
SY Code whilst gate box: line controlled by Canterbury West (EDH)
SW Sturt Lane Junction   BML1 32m 15ch 25 September 1904 5 June 1966 Woking (WV)
SS Substation Ground Frame   MLN1       Old Oak Common (OO)
S Subway Junction   MLN1 0m 76ch by 1880 19 November 1967 Old Oak Common (OO)
SJ
SY Sudbury   NSS 20m 67ch 1885    
  Sudbury Hill, Harrow   NAJ1 2m 57ch   29 May 1990 Marylebone (ME)
SJ Sudbury Junction   LEC1 c7m 69ch     Wembley Main Line (WM)?
S Sudforth Lane   WAG1 61m 9ch 1959    
SL
R Repeater signals
S Summit Code used from 1972.  Believed to refer to Beattock Summit WCM1 c49m 51ch 3 October 1899 29 April 1973 Motherwell (MC)
S Sunderland Code used from 10 October 1965 LEN3 89m 46ch 1965 11 January 2002 Tyneside (T)
SD Sunningdale Downgraded to gate box 8 September 1974 RDG1 26m 64ch by 1900 5 September 1975 Feltham (F)
D Distant signals
SJ Sunnyside Junction Code used from 1960 NEM2 c8m 39ch 8 August 1920 28 July 1991 Yoker (YS)
SJR Repeater signals
WN Surbiton   BML1 12m 17ch 28 June 1936 1 March 1970 Surbiton (S)
S Surbiton   BML1 12m 28ch 1 March 1970 1998 Woking (WK)
WA Automatic signals
DWA Distant to automatic signals
DS Distant to controlled signals
SU Sutton   BTH1     3 October 1982 Victoria SC (VC)
SUB Sutton Bridge Junction   SHL 0m 65ch 1913    
SO Sutton Oak Junction   SHS2     c21 May 1989 Warrington (WN)
S Suttons 'Box name unclear: 'S' signal present on HIM at about 26m 50ch HIM       Ollerton Colliery (OC)
ST Swainsthorpe   LTN1 c109m 53ch     Colchester (CO)
EL Swanley   VIR 17m 39ch 16 April 1939 June 1983 Victoria SC (VS)
A Automatic signals
SY Swinderby   NOB1 24m 68ch 6 January 1901    
S Unclear whether code carried
SN Swindon   MLN1 77m 19ch 3 March 1968    
BU Up direction automatic signals on down Badminton line
DB Down Badminton line automatic signals
DK Down Kemble line signals
DM Down main line automatic signals
SND Down direction automatic signals on up line between Hullavington and Wootton Bassett
SNU Up direction automatic signals on down line between Hullavington and Wootton Bassett
U Up Badminton line automatic signals
UB Up Badminton line automatic signals
UK Up Kemble line signals
UM Up main line automatic signals
SB Swindon B IECC   MLN1 77m 60ch 13 September 1993    
DM Down main line automatic signals
DR Down relief line automatic signals
UM Up main line automatic signals
UR Up relief line automatic signals
LY Swindon Loco Yard   SWM1 77m 64ch by 1900 29 June 1968 Swindon (SN)
  Swing Bridge East   PMT 24m 64ch 21 April 1899 1997 Carmuirs East Junction (CEJ)
S Swinton Junction Code believed used from 1979 SMJ1 167m 24ch   23 November 1980? Sheffield (SA)
SS Swinton Station Possibly also named Swinton Town TJC3 166m 72ch   after 1969 Kilnhurst (K)
S Existence of code uncertain
SJ Swynnerton Junction   NBS 2m 6ch     Stoke on Trent (SOT)
  Sykes Junction   SPD3 90m 4ch 1885 18 September 1988 Saxilby (S/SY)
SS Syston South Junction   SPC5 103m 72ch   12 April 1987 Leicester (LR)

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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