The Liverpool Street signal box is a Grade II listed disused signal box at Liverpool Street tube station in London.
It was opened for operation in 1875 for an extension of the Metropolitan Railway. It was converted to an interlocking machine room in the 1950s. In 2013 it became the third signal box on the London Underground network to be listed.
The signal box was built in 1875 on what is now the Metropolitan and Circle lines' platform at Liverpool Street for the Metropolitan Railway's extension from Moorgate. The signal box was a non-standard design designed and built by McKenzie and Holland, built of yellow stock brick, with a weatherboarded timber framed upper storey. [1]
Originally fitted with a 40 lever frame, a second mechanical frame was installed in 1902, [2] a 20-lever Railway Signal Company frame. [1] On 21 February 1954 this was replaced by a 15-lever Westinghouse miniature power lever frame. [2]
The signal box was subsequently converted to an interlocking machine room (IMR), and from 16 November 1956 it was closed and operated remotely from the Farringdon signal box. [1] Control was transferred to Baker Street on 25 March 2001. [2] As of 2020 the IMR is still in use. [1]
In 2013 it was one of 26 signal boxes given listed status by Ed Vaizey, minister for the Department for Culture, Media and Sport, after a joint initiative by English Heritage and Network Rail. [3] [4]
The structure was given Grade II listed status as an early example of an underground railway signal box, of a specific design for the Metropolitan Railway, and as being relatively unaltered. [5]
It was the third signal box on the London Underground network to gain listed status, after those at Chesham and Ruislip stations.[ citation needed ]
Liverpool Street station, also known as London Liverpool Street, is a major central London railway terminus and connected London Underground station in the north-eastern corner of the City of London, in the ward of Bishopsgate Without. It is the terminus of the West Anglia Main Line to Cambridge, the Great Eastern Main Line to Norwich, commuter trains serving east London and destinations in the East of England, and the Stansted Express service to Stansted Airport.
On a rail transport system, signalling control is the process by which control is exercised over train movements by way of railway signals and block systems to ensure that trains operate safely, over the correct route and to the proper timetable. Signalling control was originally exercised via a decentralised network of control points that were known by a variety of names including signal box, interlocking tower and signal cabin. Currently these decentralised systems are being consolidated into wide scale signalling centres or dispatch offices. Whatever the form, signalling control provides an interface between the human signal operator and the lineside signalling equipment. The technical apparatus used to control switches (points), signals and block systems is called interlocking.
Great Portland Street station is a London Underground stop between Baker Street and Euston Square stations. It lies on the Circle, Hammersmith & City and Metropolitan lines. Great Portland Street station is listed as a building of National Significance and is in Travelcard Zone 1.
Canterbury railway station is a heritage-listed railway station located on the Bankstown line at Canterbury, New South Wales, Australia. The station is served by Sydney Trains T3 Bankstown line services. The station was designed by New South Wales Government Railways and built from 1895 to 1915 by J. J. Scouller. It is also known as Canterbury Railway Station group. The property was added to the New South Wales State Heritage Register on 2 April 1999.
Leslie William Green was an English architect. He is best known for his design of iconic stations constructed on the London Underground railway system in central London during the first decade of the 20th century, with distinctive oxblood red faïence blocks including pillars and semi-circular first-floor windows, and patterned tiled interiors done in the Modern Style.
Crediton railway station is a railway station serving the town of Crediton in Devon, England. It is 7 miles 76 chains (12.8 km) from Exeter Central at milepost 179.25 from London Waterloo.
Birkenhead Hamilton Square railway station serves the town of Birkenhead, in Merseyside, England, on the Wirral Line of the Merseyrail network. The station is close to Hamilton Square in Birkenhead.
Haslemere railway station is on the Portsmouth Direct Line, serving the town of Haslemere, Surrey, England. It is 42 miles 79 chains (69.2 km) down the line from London Waterloo, measured via Woking.
Heighington is a railway station on the Tees Valley Line, which runs between Bishop Auckland and Saltburn via Darlington. The station, situated 5 miles 62 chains (9.3 km) north-west of Darlington, serves the villages of Aycliffe and Heighington in County Durham, England. It is owned by Network Rail and managed by Northern Trains.
Weston-super-Mare railway station serves the seaside town of Weston-super-Mare in North Somerset, England. It is situated on a loop off the main Bristol to Taunton Line, 137 miles 33 chains from the zero point at London Paddington via Box.
Roydon railway station is on the West Anglia Main Line serving the village of Roydon in Essex, England. It is 20 miles 9 chains (32.4 km) down the line from London Liverpool Street and is situated between Broxbourne and Harlow Town stations. Its three-letter station code is RYN.
Mechanical railway signalling installations rely on lever frames for their operation to interlock the signals, track locks and points to allow the safe operation of trains in the area the signals control. Usually located in the signal box, the levers are operated either by the signalman or the pointsman.
Severn Bridge Junction is the area of railway lines just south east of Shrewsbury railway station, in Shropshire, England. It is controlled by a mechanical interlocked signal box of the same name, which is the largest operational mechanical signal box in the world. The Network Rail signalling area code is 'SBJ.'
Wrawby Junction is a busy railway junction located a short distance west of Barnetby, North Lincolnshire, England and controls the confluence of the Network Rail routes from Lincoln, Retford and Scunthorpe towards Immingham and Cleethorpes. The junction was controlled by a large signal box of part-brick, part-wooden, construction and is now controlled from York Rail Operating Centre (ROC).
Charles Walter Clark (1885–1972) was an architect who worked for the Metropolitan Railway from 1911 to 1933 and was responsible for designing 25 stations, five of which are listed buildings today.
Par signal box is a Grade II listed former Great Western Railway signal box, located on Par railway station in Cornwall, England.
Lostwithiel signal box is a Grade II listed former Great Western Railway signal box, located on Lostwithiel railway station in Cornwall, England. The signal box is situated at the northern end of Platform 1, adjacent to the level crossing.
An Interlocking machine room (IMR) is a component of the London Underground signalling system. Interlocking is an arrangement of signal apparatus that prevents conflicting movements through an arrangement of tracks such as junctions or crossings. On the London Underground signals and points are operated and controlled by an array of electrical, pneumatic and mechanical components. IMRs are unmanned and generally located adjacent to points or at platform ends, and provide a secure and weatherproof enclosure for pneumatically controlled mechanically and electrically interlocked levers mounted horizontally in an upright lever-frame or with a converted manual lever frame.
Runcorn signal box is a railway control building sited at the south end of Runcorn railway station in Cheshire, England. It is located to the west of the West Coast Main Line and the branch line to Folly Lane. The signal box is recorded in the National Heritage List for England as a designated Grade II listed building. It was built by the London, Midland and Scottish Railway (LMS) in the early years of the Second World War incorporating the specifications of the Air Raid Precautions (ARP), and was one of the first of such signal boxes to be operational.
Birmingham New Street Signal Box is a railway signal box in Birmingham, central England, situated on the corner of Brunel and Navigation Streets and at the west end of the platforms of Birmingham New Street railway station. Opened on 3 July 1966, the brutalist structure is a grade II listed building for its architectural value and a prominent city centre landmark. It closed on 24 December 2022.