Signal box prefix codes

A (hopefully) comprehensive listing

'Boxes beginning H

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
H Haborough   MAC3 101m 13ch     Ulceby Junction (UJ)
SC Hackbridge   BTH1     21 September 1969 Victoria SC (VC)
H Hackney Downs   BGK 3m 2ch 28 May 1960 27 November 2000 Liverpool St (L)
D Down line automatic signals
DF Down fast line automatic signals
U Up line automatic signals
UC Up Chingford line automatic signals
UF Up fast line automatic signals
HC Hademore Crossing   LEC2 113m 40ch 1899 18 March 2007 Lichfield Trent Valley Low Level (LD)
HD Hadfield   HAJ 12m 61ch   7 December 1985 Dinting (DG)
HE Hadfield East   HAJ     by 1973 Hadfield (HD)
HW Hadfield West   HAJ     by 1973 Hadfield (HD)
  Hagside LC   MVB3 8m 34ch 1980 August 1991 Manchester Metrolink
LP Hainault Loop Exact name and location unknown          
  Hale   CDM2 8m 36ch c1875 22 July 1991 Deansgate Junction (DJ)
  Halewood East Junction   WJL2?        
  Halewood West Junction   WJL2?        
H Halifax Renamed from Halifax 30 March 1969 MRB 32m 31ch 1884    
HX Unclear if code carried
R Banner repeater signals
HD Hall Dene At least one signal LEN3 85m 23ch 1905   Tees Signalling Control Centre (NS) (proposed)
H Code not confirmed
HM Hallen Marsh   AMB 14m 41ch 11 February 1917 23 January 1988 St Andrews Junction (SA)
DA Down Avonmouth line automatic signals
HG Hall Green   TSB 1m 22ch   1987? Saltley (SY)
  Halling Down line IBH for Rugby Sidings? PWS2 35m 18ch 1 March 1890 6 February 1972 Cuxton (CX)
HL Hall Lane Code probably not carried DUH     27 March 1979 Hammerton Street (HS)
HR Hall Road   HXS3 7m 10ch 1878 15 May 1994 Merseyrail (ML)
WBV Halterworth Crossing   ECR 79m 25ch     Eastleigh (E)
HN Halton Junction   WJL1 179m 20ch 1897    
HW Haltwhistle   NEC2 c37m 13ch c1915 23 May 1993 Haltwhistle [new] (HW)
H Early code used on at least one signal (later changed to HW)
HW Haltwhistle [new]   NEC2 37m 20ch 23 May 1993    
H Hamilton Engine Sheds   HMN1?   17 November 1896 26 August 1973 Motherwell (M)
H Hamilton Square   CWK1     8 May 1977 James Street (JS)
S Automatic signals
H Hammerton   HAY1 c8m 63ch   c1980 Hammerton [new] (H)
H Hammerton [new]   HAY1 8m 63ch c1980    
  Hammerton Road Gate box: line controlled by Hammerton (H) HAY1 9m 17ch      
HS Hammerton Street   LBE3     16 September 1979 Mill Lane Junction (M)
CDB Hampden Park   KJE3 21m 71ch 1888    
HR Hampstead Road Junction   CRC1 5m 23ch     Euston (EN)
CRC2 5m 23ch
WP Hampton Court Junction Downgraded to gate box 1 March 1970: line controlled by Surbiton (S) BML1 13m 30ch 28 June 1936   Surbiton (S)
HH Hams Hall National Distribution Park   DBP3 33m 5ch 7 July 1997    
HW Hamworthy Junction   BML2 115m 72ch 1893    
HS Handforth Sidings Shunt frame CMP1   29 June 1959   Wilmslow (WW)
H Handsworth Colliery   MAC3 44m 30ch     Orgreave Colliery (OC)
HH Handsworth Junction   PBJ     2 July 1966 Birmingham New Street (NS)
NS Temporary code until Handsworth Junction taken over by Birmingham New Street
HP Hare Park   DOL1 c171m 73ch   28 November 1970 Wakefield Westgate North (WN)
HT Harlescott Crossing All signals seen in photographs SYC 30m 30ch 1882    
HC Unclear whether code used
HX Unclear whether code used
HD Harlesden   CWJ 6m 2ch   10 December 1988 Willesden Suburban (WS)
HR Harling Road   ETN 101m 39ch 1883    
HA Harlow Mill   BGK 24m 34ch 24 July 1960 29 October 2003 Liverpool St (L)
D Down line automatic signals
RD Repeater to down line automatic signals
RHA Repeater to controlled signals
U Up line automatic signals
  Harrietsham   SBJ 47m 36ch   5 November 1972 Maidstone East (EBX)
HP Harringay Park Junction   TAH1 4m 15ch 1959 16 November 2009 (planned) South Tottenham Station Junction (S)
H Unclear whether code used
HW Harringay West Station   ECM1     4 August 1973 Finsbury Park No 5 (F5)
HG Harringay West Up Goods   ECM1     7 December 1974 Finsbury Park (FP)?
HH Harringworth Now preserved on Northampton & Lamport Railway GSM1 84m 79ch 1928   Manton Junction (MJ)
H Harrogate Later code HAY2 20m 30ch 1947    
HN Code when named Harrogate North
HS Harrogate South   HAY2     20 June 1981 Harrogate North (HN)
HR Harrow No 2   CWJ 11m 24ch   10 December 1988 Willesden Suburban (WS)
RHR Repeater signals
HB Hartburn   LEN3 c59m 10ch   November 1973 Bowesfield (B)
HJ Hartford Junction   CGJ1 170m 55ch 1925   Winsford (WD)
HY Hartlebury   OWW 131m 73ch 1876    
H Harton   JAW2? c5m 30ch   30 March 1982 Line transferred to Metro
H Harwich   MAH 70m 38ch   1 December 1985 Parkeston [temporary panel] (P)
H Harworth Colliery See Maltby Colliery
EW Haslemere Code used from 18 July 1937 WPH1 42m 79ch 1895    
CE Hassocks   VTB3 43m 55ch   8 August 1982 Keymer Crossing (CG)
CA Automatic signals
EDL Hastings   ATH 82m 26ch 1930    
TTH 62m 43ch
HE Hatch End   CWJ 13m 17ch   10 December 1988 Willesden Suburban (WS)
RHE Repeater signals
H Hatfield   ECM1       Kings Cross (K)?
H1 Hatfield No 1   ECM1 c17m 44ch     Kings Cross (K)
H2 Hatfield No 2   ECM1 c17m 64ch     Kings Cross (K)
R2 Banner repeater signals
HJ Haughley Junction   LTN1 c82m 75ch   21 July 1985 Colchester (CO)
  Haughton   WSJ2 183m 26ch     Gobowen North (GN)
KW Havant   WPH2 37m 28ch 1876 29 October 2007 Havant (HT)
WA Automatic signals
DWA Distant to automatic signals
HT Havant Area Signalling Centre   WPH2 c37m 28ch 29 October 2007    
  Havenhouse   GRS4 6m 0ch   c18 March 1989 Wainfleet (W)
- Havensmouth [Normans Bay]   WJB 26m 0ch     Pevensey (CCV)
HL Hawkesbury Lane   CNN 4m 70ch 1896 26 May 2009 (planned) Rugby Signalling Centre (CN)
EDJ Hawkesbury Street Junction   FDM 77m 72ch 1934 1998 Folkestone East (YE)
HL Hawkins Lane   DBP1 c10m 20ch 8 December 1929 2 February 1966 Derby (DY)
  Haxby Demolished 28 February 1988 YMS 4m 18ch   28 February 1988 Strensall (S)
  Haxby Road   YMS 3m 27ch   5? February 1989 Strensall (S)
HB Haydon Bridge   NEC2 28m 35ch 1877    
H Hayes & Harlington   MLN1 10m 67ch   10 June 1968 Old Oak Common (OO)
HL Hay Lane   MLN1 80m 0ch 1 June 1941 23 March 1968 Swindon (SN)
EH Haymarket Temporary panel EGM2 c1m 40ch 15 December 1975 3 October 1976 Edinburgh (EH)
HC Haymarket Central Junction   EGM2   7 October 1894 15 December 1975 Haymarket (HC)
  Haymarket Depot   EGM2 45m 25ch      
CH Haywards Heath   VTB3 37m 65ch 12 June 1932 1983 Three Bridges (T)
CA Automatic signals
HG Hazel Grove   BEJ 2m 21ch 1877    
H Hazlehead   MAC1 24m 48ch   after 1969 Dunford East
TE Headcorn   XTD 45m 15ch   1968 Ashford (UE) and Tonbridge (PE)
A Automatic signals
H Headingley   LEH1       Leeds (L)
R Repeater signals
HL Headstone Lane   CWJ 12m 38ch   10 December 1988 Willesden Suburban (WS)
RHL Repeater signals
HM Healey Mills   MVN2 42m 64ch 16 June 1963    
RHM mechanical distant signals
D Down direction automatic signals
DB Down branch line automatic distant signals
R Banner repeater signals
U Up direction automatic signals
UB Up branch line automatic distant signals
HK Heatheryknowe Code used from 1960 NEM2 7m 2ch 6 October 1943 28 July 1991 Yoker (YS)
HJ Heath Junction   CAR 3m 29ch 1984    
DC Down Caerphilly line automatic signals
UC Up Caerphilly line automatic signals
H Heaton   HCS 2m 16ch 6 September 1964 1991 (by 21 April) Heaton Control Tower (CT) and Tyneside (T)
D Down line automatic signals (until 1977?)
DN Down north line automatic signals (until 1977)
DT Down Tynemouth line automatic signals (until 1977)
HJ Signals jointly controlled by Metro
RUN Banner repeaters to up north line automatic signals
U Up line automatic signals (until 1977)
UN Up north line automatic signals (until 1977?)
UT Up Tynemouth line automatic signals (until 1977?)
CT Heaton Control Tower   ECM7 2m 16ch 21 March 1977    
CTR Off indicators
HL Heaton Lodge Junction   MVL4 c29m 54ch   18 October 1970 Healey Mills (HM)
MVL3 c29m 54ch
MVN2 c37m 29ch
HN Heaton Norris Junction   CMP2 183m 63ch 5 March 1955    
HNA Automatic signals
HW Hebburn West Code used possibly from 1960 JAW 1m 59ch?   2 December 1967 Pelaw (P)
HB Hebden Bridge   MVN2 23m 55ch 1891    
HN Heckington   GRS2 125m 54ch 1876    
H Unclear whether code used
  Heck Lane Gate box: line controlled by Hensall (H) WAG1 64m 74ch      
H Heckmondwike         20 June 1971 Route closed?
HM
HD Hednesford At least two signals RRN2 9m 12ch 1877    
H Heighington   DAE1 5m 9ch 1872    
HR Unclear whether code used
D Distant signals
HC Helensburgh Central Code used from 1960 NEM7   17 January 1960 4 November 1984 Craigendoran (C)
H Hellifield Some distant signals SKW1 231m 14ch 1911    
HD Other signals, where plates carried
HE Helpston Original code when named Helpston East ECM1 81m 69ch 1898    
H Later code as gate box: line controlled by Peterborough (P)
HW Helpston West   ECM1       Peterborough (P)
HY Helsby Junction   CHW1 7m 34ch 1900    
HHJ 8m 61ch
  Helsby West Cheshire Junction   HHJ 8m 13ch     Helsby Junction (HY)
H Hemingborough   HUL1 28m 2ch 1873 26 October 1997 Selby Panel (S)
HS Hendon Station   SPC1 7m 8ch     West Hampstead (WH)
RHS Repeater signals
  Hendon [Tyne & Wear]   HNB 1m 53ch   c1992 Ryhope Grange (RG)
HY Hendy Junction   LLA 4m 64ch     Port Talbot (PT)
HA Henley in Arden   TSB 13m 34ch 1907    
HY Henley on Thames   HEN 35m 22ch 1897 11 March 1972 Reading (R)
H Hensall Later code WAG1 64m 41ch 1875    
HL Earlier code
R Distant signals
HK Henwick   WAH 121m 66ch 1875    
HH Henwick Hall Downgraded to gate box 22 March 1970: up line controlled by Shaftholme (SH), down line controlled by Brayton (BN) TCW1 172m 20ch 1912 1983? Selby Panel (S)
H Hepscott   EJM c19m 44ch   26 February 1984 Morpeth (M)
H Hereford   SHL 51m 13ch 1884    
EK Herne Bay   VIR 62m 55ch   1971 Margate (GE) and Faversham (EY)
A Automatic signals
EE Herne Hill   VIR 3m 65ch 3 June 1956 6 December 1981 Victoria SC (VS)
A Automatic signals
HE Hertford East Codes used from 24 January 1960 HEB 24m 7ch 1888 27 May 2003 Liverpool St (L)
D Down line automatic signals
HD Hertford North   HDB c19m 40ch     Kings Cross (K)
  Heslerton Station Downgraded to gate box 10 June 1970 YMS 29m 32ch     Malton (M)
H Hessay Gate box: line controlled by Hammerton (H) HAY1 5m 11ch      
HH Hessle Haven Later code (possibly from 1975) HUL1 4m 24ch   26 February 1983 Hessle Road Junction (HR)/
Melton Lane (ML) (some signals)
H Earlier code
D Down line automatic signals
U Up line automatic signals
UG Up goods line automatic signals
UM Up main line automatic signals
HR Hessle Road Junction   HUL1 1m 74ch 14 October 1962    
U Up line automatic signals
  Hest Bank Gate box: line controlled by Preston (PN) CGJ7 3m 12ch 1958    
HT Hethersett   ETN c117m 74ch   28 June 1987 Colchester (CO)
HM Hett Mill Code in use by January 1971.  Downgraded to gate box 28 November 1971 ECM5 c60m 21ch   11 March 1984 Ferryhill (F)
- Hever   SCU1 27m 27ch   7 January 1990 Oxted (OD)
H Hexham Was Hexham East to September 1966 NEC2 20m 53ch 1918    
HM
HE Reported, but unclear if actually carried
R Banner repeater signals
HJ Hexthorpe Junction   PED5 21m 4ch   31 August 1980 Doncaster (D)
H Code reported but probably not carried
HY Heyford Ground Frame           Rugby (RY)
HR Heywood Road   SWY 94m 45ch 1 January 1933 11 May 1984 Westbury (W)
DW Down Westbury line automatic signals WES 94m 45ch
UW Up Westbury line automatic signals
  Heyworth   ECM2 162m 54ch     Doncaster (D)
H Hickleton Formerly Hickleton Main Colliery to 3 May 1981 SMJ2 15m 5ch 1933    
  Highams Park Gate box CJC 8m 45ch c1927 24 February 2002 Highams Park [temporary]
  Highams Park [reopened] Gate box CJC 8m 45ch 5 June 2002 24 June 2002 Liverpool St (L)
  Highams Park [temporary] Gate box (opposite side of line to permanent 'box) CJC 8m 45ch 24 February 2002 5 June 2002 Highams Park [reopened]
HB Highbridge Code used from 29 January 1972 MLN1 145m 3ch ?? 18 March 1972 Bristol (B)
DM Down main line automatic signals.  Code used from 29 January 1972
H Highdyke   ECM1 c101m 46ch 1882 24 October 1977 Doncaster (D)
  High Eggborough Gate box: line controlled by Hensall (H) WAG1 63m 33ch      
HM High Meads   LLS1     1 April 1967 Stratford (S)
HS High Street Junction Code used from 1960 NEM2 0m 26ch 1904? 20 November 1989 Yoker (YF)
HN Hightown   HXS3 9m 4ch 1878 11 March 1994 Merseyrail (ML)
HW High Wycombe   NAJ2 16m 12ch   8 February 1991 Marylebone (ME)
HJ Hilton Junction   SCM4 149m 17ch 6 August 1873    
H Unclear whether code carried CDC2 45m 62ch
HY Hinckley   WNS 3m 70ch 1894 28 July 2006 Croft (CT)
  Hirst Lane Gate box: line controlled by Ashington Junction BWC 3m 21ch      
HT Hitchin Code after renaming from Cambridge Junction ECM1 c32m 13ch     Kings Cross (K)
J Code when named Cambridge Junction
H Hitchin South   ECM1 c31m 55ch   9 February 1975 Hitchin (HT)
D Down direction automatic signals
UM Up main line automatic signals
Y Hitchin Yard   ECM1 c32m 0ch     Kings Cross (K)
P Hither Green   XTD 7m 2ch 4 February 1962 4 November 1976 London Bridge (L)
A Automatic signals
EBW Hither Green Sidings 'C' Code used from c1960 XTD 8m 16ch   3 February 1962 Hither Green (P)
P Hither Green Station 'A' Code used from 30 June 1929 on 2 signals only XTD 7m 2ch   3 February 1962 London Bridge (L)
HS Hockley South   DCL 130m 5ch 1902 17 September 1972 Line closed.  Controlled by Saltley (SY) on reopening
A Holborn Code to c1927 HHH 0m 18ch 1926? 1974 Blackfriars (J)
H Code from c1927
- Hollingbourne   SBJ 45m 6ch   14 April 1984 Maidstone East (ME)
  Hollinwood   MPR2 4m 52ch     Manchester North (MN)
ND Holloway North Down   ECM1 c1m 74ch     Finsbury Park (FP)?
HND
SD Holloway South Down   ECM1       Finsbury Park (FP)?
H Holme Possibly same structure as Holme gate box ECM1 c69m 26ch   13 December 1975 Peterborough (P)
H Holme Gate box; line controlled by Peterborough (P).  Possibly same structure as Holme signal box ECM1 69m 26ch 13 December 1975 3 May 1998 Peterborough (P)
  Holmes Chapel   CMP1 166m 52ch 1959    
HJ Holmes Junction Code used by 1965 TJC2 163m 43ch   29 July 1979 Sheffield (S)
CBL Holmwood   BTH3 27m 6ch 1877 3 August 2004 Three Bridges (T)
H Holton le Moor   NOB3 21m 10ch 1890    
HD Holyhead   CNH3 263m 26ch 1937    
  Holyhead Freight Terminal   CNH3 263m 47ch 1968   Holyhead (HD)
H Holytown Junction Code used from 1973 EGS2   1 June 1879 21 October 1973 Motherwell (M)
HJ Holywell Junction Down distant CNH3 195m 75ch 1902    
HW Holywood Code used from 2002 GSW 88m 30ch      
HN Honiton   BAE2 154m 60ch 16 June 1957    
H
EDF Hoo Junction   HDR   1964 16 May 1971 Dartford (D)
XW Hook   BML1 42m 11ch 25 September 1904 23 October 1966 Basingstoke (YW)
HN Hooton   CRR2 7m 73ch 1985    
HJ Horbury Junction   MVN2 45m 38ch 1927    
D Automatic signals
H Horden Code used from March 1977 LEN3 78m 58ch 28 March 1977   Cemetery North (CN)
CP Horley North   VTB3 25m 42ch   1970 Three Bridges (T)
CN Horley South   VTB3 25m 75ch   1960 Horley North (CP)
HC Hornchurch   FSS2 13m 52ch   27 March 1961 Upminster (UM)
H
HB Horninglow Bridge To shunt frame 14 June 1969 DBP1 10m 30ch 6 August 1893 2 December 1973 Derby (DY)
HY Hornsey Carriage Sidings   ECM1 4m 15ch 1976    
H1 Hornsey No 1   ECM1     14 December 1974 Wood Green (WG)
HO Hornsey Up Goods   ECM1       Finsbury Park (FP)?
HD Horrocksford Junction At least 2 colour light signals DJH 21m 60ch 1873    
HJ Later code
HJR Distant signals: later code
R Distant signals: earlier code
  Horsemoor   EMP 84m 31ch 1899 13 November 1988 March South Junction (MS)
H Horsforth   LEH1 4m 70ch 1883    
D Some down line automatic signals
RU Banner repeaters for up line automatic signals
U Up line automatic signals
CBP Horsham Code used from new BTH3 35m 34ch 24 April 1938 30 August 2005 Three Bridges (T)
EBS Hothfield Code to 1980 SBJ 55m 61ch   16 February 1985 Maidstone East (ME)
HF Code from 1980 when panel provided
H Hougham   ECM1     30 April 1972 Grantham (G)
HV Hove Formerly Hove 'A' BLI1 1m 16ch by 1911 16 March 1985 Three Bridges (T)
CCL Hove 'B'   BLI1 c1m 42ch by 1911 25 November 1973 Hove 'A' (HV)
W Hoveton & Wroxham   WHC1 8m 70ch 1900 26 June 2000 Trowse Swing Bridge (TB)
  Howden   HUL1 22m 27ch 1873 26 October 1997 Selby Panel (S)
H Howden-On-Tyne     5m 23ch from Newcastle   10 August 1980? Line transferred to Metro
HD
HS Howe & Co's Siding   SAC 302m 77ch 1916    
  How Mill   NEC2 52m 66ch   23 August 1989 Corby Gates (CG)
H Howsham Gate box YMS 13m 29ch 1873    
  Howsham (Lincs)   NOB3 16m 17ch     Holton le Moor (H)
  Hoylake   CWK3 9m 32ch 1889 18 September 1994 Merseyrail (ML)
HB Hubberts Bridge   GRS2 133m 43ch 1961    
U Up line automatic signals
HU Huddersfield   MVL3 25m 60ch 30 November 1958    
HD Possibly earlier code
D Down line automatic signals
U Up line automatic signals
H Huddersfield Hillhouse Junction   MVL3       Huddersfield (HU)
HJ Huddersfield Junction Mileage accuracy unknown MAC1 28m 44ch      
H Huddersfield Junction See Penistone          
  Huish Crossing Downgraded to gate box 29 January 1972; demolished 1990 MLN1 132m 11ch     Bristol (B)
HL Hullavington   SWB 94m 17ch 1 January 1903? 23 March 1968 Swindon (SN)
DB Down Badminton line automatic signals
  Hull Bridge   ADH1 1m 66ch 1885    
D Hull Dock Control Cabin   KGD        
HP Hull Paragon Later code from December 1984.  Once world's largest relay interlocking HUL1 0m 18ch 23 April 1938    
P Original code used from opening
HR Humber Road Junction   RBS1     1972? Coventry (CY)
  Huncoat Station Local Control Frame   FHR5 17m 35ch 1902    
H Hungerford   BHL 61m 47ch 19 March 1972 15 July 1978 Reading (R)
H Hunmanby   HBS 41m 51ch 1875 5 March 2001 Seamer (SR)
H Hunslet   TJC3       Stourton (S)
H Hunterston Code used from 1978 LGS2 c36m 50ch 2 April 1978 9 November 1986 Paisley (PH)
  Hunterston Emergency Signalling Panel See Paisley Hunterston interlocking LGS2 36m 45ch -    
  Hunterston High Level Closed 1992-1996 LGS2   c1980    
HU1 Huntingdon North No 1   ECM1       Peterborough (P)
R Banner repeater signals
HU2 Huntingdon North No 2   ECM1       Peterborough (P)
H Huntly Formerly Huntly South.  Code used 2002-2003 ANI1 40m 43ch 3 March 1890    
HT Code from 4 January 2003
HC Hunts Cross   MAJ 7m 13ch 1982    
  Huntspill   MLN1 147m 4ch 19 May 1940 18 March 1972 Bristol (B)
H Hurlford Formerly Hurlford South.  Code used 1976-2002 GSW 35m 50ch c1920    
HF Code from 2003
CCN Hurst Green   SCU1 21m 31ch   11 July 1987 Oxted (OD)
HN Huyton   DSE 5m 50ch 1899    
H Hyde Junction   HAJ 6m 15ch   December 1984 Guide Bridge (GB)
HR Hyde Road Junction     1m 16ch     Line closed
H Hyndland Code used from 1979 NEM3 3m 48ch 3 July 1960 20 November 1989 Yoker (YH)
HY Code used from 1960
HF Finnieston interlocking.  Code used from 1979

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