logoSignal box prefix codes

A (hopefully) comprehensive listing

'Boxes beginning Q

Last update 2 August 2018

Additional information is always gratefully received, whether entirely new records (particularly historical records), or information to fill in gaps or correct errors, via the contact link under the Miscellaneous entry in the navigation bar above.  Thank you.

Please select a starting letter from the links below:

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 | Ireland | Western region MAS dates | Mechanical signalling bell codes

Code Signal Box Note ELR Mileage Opened Closed Control to
QJ Quarry Junction   PED2 7m 45ch 19 April 1960 17 November 1985 Jumble Lane (J)
QJ Queensferry Junction   EGM1 42m 42ch 9 October 1949 30 April 1978 Edinburgh (EN)
QP Queens Park [London]   CWJ 3m 66ch 26 March 1905 10 December 1988
(or 1991?)		 Willesden Suburban (WS)
RQP Repeater signals
WD Queens Road [London] Named Queens Road West to 17 May 1936 BML1 2m 65ch 1898 25 May 1990 Wimbledon (W)
  Queens Road West See Queens Road [London]
  Queens Road [Manchester]   MVB1 1m 36ch   August 1991 Line transferred to Manchester Metrolink
Q Queen Street   EGM1 0m 17ch 1881 26 February 1967 Cowlairs (CQ)
QW Queen Street West Code used from 1935 NEM3 0m 44ch 15 March 1886 8 February 1960 High Street Junction (HS)/
Kelvinhaugh Junction (K)
QE Queensville   LEC2 132m 30ch     Stafford No 4 (SD4)
Q Quintinshill Code used from 1971 WCM1 10m 19ch 25 September 1903 7 July 1973 Carlisle (CE)

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 | Ireland | Western region MAS dates | Mechanical signalling bell codes