Last update 12 March 2022
Please select a starting letter from the links below:
Code | Signal Box | Note | ELR | Mileage | Opened | Closed | Control to |
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OA&GB Junction | MVL1 | 6m 07ch | 1965 | 14 January 1996 | Ashton Moss North Junction (AMN) | ||
O | Oakenshaw | Formerly named Oakenshaw North | TJC3 | 182m 35ch | 1928 | 23 December 2007✖last train; official closure 27 December 2007 | Wakefield Kirkgate [new] (WK) |
OK | Unclear if code carried | ||||||
ON | Code used when named Oakenshaw North | ||||||
R | Repeater signals | ||||||
UM | Up line automatic signals | ||||||
Oakenshaw North | See Oakenshaw | ||||||
OA | Oakham | Name board states 'Oakham Level Crossing' | GSM2 | 93m 56ch | 8 October 1899 | ||
OM | |||||||
O | Unclear whether code used | ||||||
Oakham Level Crossing | See Oakham | ||||||
OP | Oakleigh Park | ECM1 | ≈8m 25ch | 13 July 1924 | 30 May 1970 | New Barnet (NB) | |
OT | Oak Tree | DSN1 | ≈4m 28ch | 7 October 1972 | Darlington (D) | ||
WO | Oatlands | BML1 | 18m 13ch | 1894 | 22 March 1970 | Surbiton [new] (S) | |
Oddingley | Gate box: line controlled by Gloucester (G) | BAG2 | 62m 61ch | 1908 | |||
OF | Offord & Buckden | Downgraded to gate box 25 July 1976: line controlled by St Neots (SN) | ECM1 | 55m 76ch | 6 February 1899 | 17 May 1998 | Peterborough (P) |
OY | Oldbury | Downgraded to shunt frame 8 January 1966: line controlled by Birmingham New Street (NS) | RBS2 | 5m 14ch | ≈28 October 1981 | Birmingham New Street (NS) | |
Old Dalby NNR | GSM4 | 111m 22ch | ? | ||||
OM | Oldham Mumps | MPR3 | 7m 21ch | 1967 | 3 October 2009 | Line transferred to Manchester Metrolink | |
F | Old Kew Junction | HOU | 10m 04ch | 18 October 1942 | 8 September 1974 | Feltham (F) | |
LG | Old Lea Station | Temporary box intended for occasional use to increase capacity during Nottingham resignalling. Opened and immediately switched out, never used to signal trains. Lincoln to Gainsborough line signals | SPD3 | 95m 68ch | 30 June 2013 | 4 January 2014 | Lincoln Control Centre (LG) |
OO | Old Oak Common | MLN1 | 2m 64ch | 8 October 1962 | 4 September 1967 | Old Oak Common [new panel] (OO) | |
EC | Engine and carriage line signals | ||||||
OO | Old Oak Common [new panel] | MLN1 | 2m 64ch | 4 September 1967 | 30 May 1995 | Slough New IECC (SN) | |
DG | Down goods and carriage line signals. Code used by 1974 | ||||||
DM | Down main line automatic signals | ||||||
DR | Down relief line automatic signals | ||||||
EC | Engine and carriage line signals. Code used by 1971 | ||||||
OOO | Code shown in 1984 notice in error | ||||||
UC | Up carriage line automatic signals | ||||||
UM | Up main line automatic signals | ||||||
UR | Up relief line automatic signals | ||||||
UW | Up Wycombe line automatic signals | ||||||
Z | Draw ahead signals at Hayes. Code used from 10 August 1983 | ||||||
C | Old Oak Common Carriage Line Ground Frame | Believed code not carried | MLN1 | ≈2m 00ch | |||
CR | Old Oak Common Crossrail Depot | Codes shown on development plans | MLN1 | ||||
DC | |||||||
WL | Old Oak Common Depot | Wheel lathe line signals | OOC1 | 28 December 2017 | |||
A | Road A signals | ||||||
B | Road B signals | ||||||
C | Road C signals | ||||||
OT | Old Town | DSN2 | 26 November 1967 | Middlesbrough (M) | |||
OM | Olive Mount Junction | DSE | 2m 50ch | 1883 | 18 May 1998 | Edge Hill (LE) | |
OC | Ollerton Colliery | Burnt down April 2006 | HIM | 19m 33ch | 1893 | 23 March 2009 | Thoresby Colliery Junction (T) |
OY | Onibury | SHL | 22m 68ch | 12 December 1977 | Wales Rail Operating Centre (NS) (planned) | ||
OL | Ordsall Lane No 1 | Believed code not carried | COL | ≈190m 20ch | 18 October 1978 | Deal Street (DS) | |
OC | Orgreaves Colliery | Ambiguous source data: colliery branch removed 8 February 1981 | MAC3 | 45m 10ch | 1901 | 8 September 1985 | Darnall West Junction (DW) |
OW | Orient Way Sidings | Code used from opening | SDC | ≈5m 70ch | 2009 | ||
JE | Orpington [panel] | Code used from opening | XTD | 13m 49ch | 4 March 1962 | 22 February 1993 | Ashford IECC (AD) |
JE | Orpington A | Code used from 1959 | XTD | 13m 47ch | ≈1904 | 4 March 1962 | Orpington [panel] (JE) |
EBV | Otford Junction | Code used from 11 March 1962 | SBJ | 24m 55ch | 1 January 1898 | 5 June 1983 | Victoria Signalling Centre (VS) |
A | Automatic signals | ||||||
OB | Oughty Bridge | MAC3 | 36m 23ch | 24 July 1905 | January 1984 | Wadsley Bridge (WB) | |
OB | Oulton Broad North | NOL | 22m 01ch | 1901 | 24 February 2020 | Colchester [new] (YL) | |
Oulton Broad Swing Bridge | ESK | 116m 02ch | 1907 | 20 March 2005 | Oulton Broad Swing Bridge [new] | ||
Oulton Broad Swing Bridge [new] | Renamed Oulton Broad Swing Bridge Operations Cabin 24 February 2020 | ESK | 116m 00ch | 20 March 2005 | |||
OJ | Over Junction | SWM2 | 115m 53ch | January 1953 | 2 June 1969 | Gloucester (G) | |
OE1 | Oxenholme No 1 | Code used from 29 April 1973 | CGJ7 | ≈18m 45ch | 12 May 1973 | Carlisle (CE) | |
OE2 | Oxenholme No 2 | Code used from 29 April 1973 | CGJ7 | ≈19m 05ch | 12 May 1973 | Carlisle (CE) | |
OX | Oxford | DCL | 63m 46ch | 7 October 1973 | 7 July 2018✖last train; official closure 16 July 2018 | Thames Valley Signalling Centre (OD) | |
BT | Signals protecting Bicester London Road level crossing | ||||||
DM | Down main line automatic signals | ||||||
DX | Down Oxford line automatic signals | ||||||
OD | Code shown on some plans, believed never carried | ||||||
UM | Up main line automatic signals | ||||||
UX | Up Oxford line automatic signals | ||||||
OR | Oxford Road | COL | ≈189m 37ch | Manchester Piccadilly (MP) | |||
OS | Oxheys | CGJ6 | ≈1m 30ch | 3 February 1973 | Preston (PN) | ||
OY | Oxley | WSJ2 | 143m 14ch | 30 March 1969 | 29 November 2010 | West Midlands Signalling Centre (OS) | |
CS | Oxley Carriage Shed | WSJ2 | ≈143m 17ch | ||||
O | Oxmardyke | Gate box: line controlled by Gilberdyke Junction (G) | HUL1 | 16m 22ch | 1901 | 23 November 2018✖last train; official closure 26 November 2018, delayed from 3 April 2018 | York Rail Operating Centre (GH) |
OX | Oxmarsh Crossing | BAR | 106m 39ch | 1959 | |||
OM | Code reported but not seen on site | ||||||
O | Oxspring Junction | PED2 | 0m 20ch | 1933 | 20 May 1973 | Line closed | |
CCM | Oxted | Original code phased out 1985-1987 | SCU1 | 20m 32ch? | 1896 | July 1987? | Oxted [new] (OD) |
OD | New code phased in 1985-1987 | ||||||
OD | Oxted [new] | SCU1 | 20m 31ch | 11 July 1987 |