The Docklands Light Railway (DLR) is an automated
light metro
A medium-capacity system (MCS), also known as light rapid transit or light metro, is a rail transport system with a capacity greater than light rail, but less than typical heavy-rail rapid transit. MCS’s trains are usually 1-4 cars, or 1 lig ...
system serving the redeveloped
Docklands area of
London
London is the capital and List of urban areas in the United Kingdom, largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary dow ...
, England and provides a direct connection between London's two major financial districts,
Canary Wharf
Canary Wharf is an area of London, England, located near the Isle of Dogs in the London Borough of Tower Hamlets. Canary Wharf is defined by the Greater London Authority as being part of London's central business district, alongside Central Lon ...
and the
City of London
The City of London is a city, ceremonial county and local government district that contains the historic centre and constitutes, alongside Canary Wharf, the primary central business district (CBD) of London. It constituted most of London f ...
.
First opened on 31 August 1987, the DLR has been extended multiple times, giving a total route length of .
[ Lines now reach north to Stratford, south to Lewisham, west to and in the ]City of London
The City of London is a city, ceremonial county and local government district that contains the historic centre and constitutes, alongside Canary Wharf, the primary central business district (CBD) of London. It constituted most of London f ...
financial district, and east to Beckton
Beckton is a suburb in east London, England, located east of Charing Cross and part of the London Borough of Newham. Adjacent to the River Thames, the area consisted of unpopulated marshland known as the East Ham Levels in the parishes of Barki ...
, London City Airport
London City Airport is a regional airport in London, England. It is located in the Royal Docks in the Borough of Newham, approximately east of the City of London and east of Canary Wharf. These are the twin centres of London's financial ...
and Woolwich Arsenal. Further extensions are being considered.
Normal operations are automated, so there is minimal staffing on the 149 trains (which have no driving cabs) and at major interchange stations; the four below-ground stations are staffed, to comply with underground station health and safety regulations.
The DLR is owned by Docklands Light Railway Ltd, part of the London Rail
London Rail is a directorate of Transport for London (TfL), involved in the relationship with the National Rail network within Greater London, UK which manages TfL's non-London Underground train services.
Operations
London Rail manages the ...
division of Transport for London (TfL). It is operated under a franchise awarded by TfL to KeolisAmey Docklands Limited, a joint venture between transport operator Keolis
Keolis is a multinational transportation company that operates public transport systems. The company manages bus, rapid transit, tram, coach networks, rental bikes, car parks, water taxi, cable car, trolleybus and funicular services.
...
and infrastructure specialists Amey plc, having been run previously (1997–2014) by Serco Docklands.
Passenger numbers have greatly increased as the network has expanded, and in the financial year 2019/20 there were 116.8 million passenger journeys. The DLR (like Tramlink
London Trams, previously Tramlink and Croydon Tramlink, is a light rail tram system serving Croydon and surrounding areas in South London, England. It began operation in 2000, the first tram system in the London region since 1952. It is manage ...
but excluding most other TfL and National Rail
National Rail (NR) is the trading name licensed for use by the Rail Delivery Group, an unincorporated association whose membership consists of the passenger train operating companies (TOCs) of England, Scotland, and Wales. The TOCs run the ...
services) is fully metric
Metric or metrical may refer to:
* Metric system, an internationally adopted decimal system of measurement
* An adjective indicating relation to measurement in general, or a noun describing a specific type of measurement
Mathematics
In mathem ...
.
History
Origins and development
The docks immediately east of Central London began to decline in the early 1960s as cargo became containerised. They had been connected to the national railway network via the London and Blackwall Railway
Originally called the Commercial Railway, the London and Blackwall Railway (L&BR) in east London, England, ran from Minories to Blackwall via Stepney, with a branch line to the Isle of Dogs, connecting central London to many of London's docks. ...
(L&BR), which was closed in 1966 for lack of traffic. The opening of the Tilbury container docks, further east in Essex
Essex () is a county in the East of England. One of the home counties, it borders Suffolk and Cambridgeshire to the north, the North Sea to the east, Hertfordshire to the west, Kent across the estuary of the River Thames to the south, and Grea ...
, finally rendered them redundant, and in 1980 the government gained control of the now-derelict area.
As early as 1972, consideration was given to how to redevelop the moribund Docklands. Travis Morgan & Partners were commissioned by the London Docklands Study Team to consider the issue. They proposed, among other recommendations, that a "minitram" people-mover system capable of carrying up to 20 people in each unit should be constructed to connect the Docklands with the planned Fleet line tube railway terminus at Fenchurch Street railway station
Fenchurch Street railway station, also known as London Fenchurch Street, is a central London railway terminus in the southeastern corner of the City of London. It takes its name from its proximity to Fenchurch Street, a key thoroughfare in th ...
. The Greater London Council formed a Docklands Joint Committee with the Boroughs of Greenwich
Greenwich ( , ,) is a town in south-east London, England, within the ceremonial county of Greater London. It is situated east-southeast of Charing Cross.
Greenwich is notable for its maritime history and for giving its name to the Greenwich ...
, Lewisham, Newham
The London Borough of Newham is a London borough created in 1965 by the London Government Act 1963. It covers an area previously administered by the Essex county boroughs of West Ham and East Ham, authorities that were both abolished by the ...
, Southwark and Tower Hamlets
The London Borough of Tower Hamlets is a London borough covering much of the traditional East End. It was formed in 1965 from the merger of the former metropolitan boroughs of Stepney, Poplar, and Bethnal Green. 'Tower Hamlets' was originally ...
in 1974 to undertake the redevelopment of the area. A light railway system was envisaged, terminating either at Tower Hill tube station or at nearby Fenchurch Street, but both options were seen as too expensive. Nonetheless, in 1976 another report proposed a conventional tube railway for the area and London Transport obtained Parliamentary powers to build a line from Charing Cross station to Fenchurch Street, Surrey Docks (now Surrey Quays railway station
Surrey Quays is a station on the East London Line of the London Overground. It is located in Rotherhithe, part of London Borough of Southwark. It is in Zone 2 and the next station to the north is , and to the south it splits into branches to , ...
), the Isle of Dogs, North Greenwich and Custom House to Woolwich Arsenal. This was intended to be the second stage of the Fleet line – which had been renamed the Jubilee line
The Jubilee line is a London Underground line that runs between in east London and in the suburban north-west, via the Docklands, South Bank and West End. Opened in 1979, it is the newest line on the Underground network, although some secti ...
, the first stage of which opened in 1979 from to . However, when the Thatcher Government came to power, the plans to extend the Jubilee line were halted and the new government insisted that a lower-cost option should be pursued.
The government established the London Docklands Development Corporation
The London Docklands Development Corporation (LDDC) was a quango agency set up by the UK Government in 1981 to regenerate the depressed Docklands area of east London. During its seventeen-year existence it was responsible for regenerating an a ...
(LDDC) in July 1981 to coordinate the redevelopment of the Docklands. The need to provide a cheap public transport solution led to it commissioning London Transport to evaluate a number of exclusively light rail options. The core of the route ran alongside the Great Eastern line out of London and south along the former London & Blackwall Railway line through the Isle of Dogs. Three terminus options were proposed at the west end, at Tower Hill, Minories and Aldgate East. The Tower Hill option would have required a low-level interchange to be constructed alongside the existing Underground station, but this would have been a very costly venture. The Minories option, a high-level station virtually on the site of the old Minories railway station
Minories was the western terminus of the London and Blackwall Railway (L&BR), located on the east side of Minories, a short distance north-east of the Tower of London. The line was operated on a cable-hauled basis with a 400 hp pair of st ...
, was selected and became the current Tower Gateway DLR terminus. Aldgate East would have been perhaps the most ambitious of all of the options, as it originally envisaged a low-level connection with the District line
The District line is a London Underground line running from in the east and Edgware Road in the west to in west London, where it splits into multiple branches. One branch runs to in south-west London and a short branch, with a limited serv ...
that would have allowed DLR trains to run on London Underground
The London Underground (also known simply as the Underground or by its nickname the Tube) is a rapid transit system serving Greater London and some parts of the adjacent counties of Buckinghamshire, Essex and Hertfordshire in England.
The ...
tracks to a variety of central London destinations. However, it quickly became apparent that there was no capacity on the existing network for integrating the DLR into the Underground.
Two southern terminus options were put forward, at Cubitt Town (today's Island Gardens station) and Tiller Road, on the west side of Millwall Dock, with two possible routes to reach them. A "western" route would have run from the Westferry station alongside West Ferry Road via Cuba Street, then either terminating at Tiller Road or continuing over Millwall Docks Cut to a terminus at Cubitt Town. The "central" option required the West India Docks
The West India Docks are a series of three docks, quaysides and warehouses built to import goods from and export goods and occasionally passengers to the British West Indies on the Isle of Dogs in London the first of which opened in 1802. Follow ...
to be infilled or bridged and would run down the middle of the peninsula, through what was at the time an area of derelict warehouses. Ultimately this latter option was chosen, though the 1981 London Transport report warned that without extensive development around Canary Wharf
Canary Wharf is an area of London, England, located near the Isle of Dogs in the London Borough of Tower Hamlets. Canary Wharf is defined by the Greater London Authority as being part of London's central business district, alongside Central Lon ...
the area would be "very isolated with poor traffic prospects" – as indeed it was, for a number of years.
The contract for the initial system was awarded to a GEC / John Mowlem
John Mowlem (12 October 1788 – 8 March 1868) was an English stonemason, builder and founder of the quarrying and construction company "Mowlem, Burt and Freeman".
Career
Mowlem was born in Swanage, Dorset, the son of a quarryman. As a young ma ...
joint venture in 1984 and the system was constructed from 1985 to 1987 at a cost of £77 million. The line was formally opened by Queen Elizabeth II on 30 July 1987, and passenger services began on 31 August.
Initial system (1987–1990)
The initial system comprised two routes, from and Stratford to . It was mainly elevated on disused railway viaducts or new concrete viaducts, and adopted disused surface railway formations between Poplar and Stratford. The trains were fully automated, controlled by computer, and had no driver; a Passenger Service Agent (PSA) on each train, originally referred to as a "Train Captain", was responsible for patrolling the train, checking tickets, making announcements and controlling the doors. PSAs could take control of the train in circumstances including equipment failure and emergencies. A total of eleven units supplied by Linke-Hofmann-Busch
Alstom Transport Deutschland, formerly Linke-Hofmann-Busch, is a German manufacturing company originally established in Breslau (now Wrocław, Poland) to produce locomotives and rolling stock. Its origins lay in the wheelwright business of Gott ...
comprised the first generation of the Docklands Light Railway rolling stock.
The system was lightweight, with stations designed for trains of only a single articulated vehicle. The three branches totalled , had 15 stations, and were connected by a flat triangular junction near . Services ran from Tower Gateway to Island Gardens and from Stratford to Island Gardens; the north side of the junction was used only for access to the Poplar depot. The stations were mostly of a common design and constructed from standard components. A common feature was a short half-cylindrical glazed blue canopy. All stations were above ground and were generally unstaffed.
Extensions to the City and the Royal Docks (1991–1994)
The initial system had a relatively low capacity, but the Docklands area very quickly developed into a major financial centre and employment zone, increasing traffic. In particular Tower Gateway, at the edge of the City of London
The City of London is a city, ceremonial county and local government district that contains the historic centre and constitutes, alongside Canary Wharf, the primary central business district (CBD) of London. It constituted most of London f ...
, attracted criticism for its poor connections, as it did not connect directly with the nearby Tower Hill tube station or Fenchurch Street railway station
Fenchurch Street railway station, also known as London Fenchurch Street, is a central London railway terminus in the southeastern corner of the City of London. It takes its name from its proximity to Fenchurch Street, a key thoroughfare in th ...
. The criticism arose partly because the system usage was higher than expected. Plans were developed, before the system opened, to extend it to in the west and Beckton
Beckton is a suburb in east London, England, located east of Charing Cross and part of the London Borough of Newham. Adjacent to the River Thames, the area consisted of unpopulated marshland known as the East Ham Levels in the parishes of Barki ...
in the east. Stations and trains were extended to two-unit length, and the system was expanded into the heart of the City of London
The City of London is a city, ceremonial county and local government district that contains the historic centre and constitutes, alongside Canary Wharf, the primary central business district (CBD) of London. It constituted most of London f ...
to through a tunnel, which opened in 1991 at a cost of £295m. This extension left on a stub.
The original trains were not suitable for underground usage due to not meeting the fire safety laws for underground trains. They were operated for a time on the above-ground sections only, and were later sold.
As the Canary Wharf
Canary Wharf is an area of London, England, located near the Isle of Dogs in the London Borough of Tower Hamlets. Canary Wharf is defined by the Greater London Authority as being part of London's central business district, alongside Central Lon ...
office complex grew, Canary Wharf DLR station was redeveloped from a small wayside station to a large one with six platforms serving three tracks and a large overall roof, fully integrated into the malls below the office towers.
The east of Docklands needed better transport connections to encourage development, and a fourth branch, towards Beckton
Beckton is a suburb in east London, England, located east of Charing Cross and part of the London Borough of Newham. Adjacent to the River Thames, the area consisted of unpopulated marshland known as the East Ham Levels in the parishes of Barki ...
, was planned, with several route options available. A route from via and the north side of the Royal Docks complex was chosen, and opened in March 1994 at a cost of £280m. Initially it was thought the line was likely to be underutilised, due to the sparse development in the area and for this reason two additional stations at Thames Wharf (not to be confused with the later Thames Wharf proposal on the Woolwich branch) and Connaught were omitted. As part of this extension, one side of the original flat triangular junction was replaced by a grade-separated junction west of Poplar. Poplar was rebuilt to give cross-platform interchange
A cross-platform interchange is a type of interchange between different lines at a metro (or other railway) station. The term originates with the London Underground; such layouts exist in other networks but are not commonly so named. In the U ...
between the Stratford and Beckton lines, with a new grade-separated junction built east of the station at the divergence of the Stratford and Beckton lines. As part of the extension, a new, larger, depot was built at Beckton
Beckton is a suburb in east London, England, located east of Charing Cross and part of the London Borough of Newham. Adjacent to the River Thames, the area consisted of unpopulated marshland known as the East Ham Levels in the parishes of Barki ...
.
Extension to Greenwich & Lewisham (1996–1999)
Early on, Lewisham London Borough Council commissioned a feasibility study into extending the system under the River Thames
The River Thames ( ), known alternatively in parts as the River Isis, is a river that flows through southern England including London. At , it is the longest river entirely in England and the second-longest in the United Kingdom, after the R ...
. This led the council to advocate an extension via Greenwich
Greenwich ( , ,) is a town in south-east London, England, within the ceremonial county of Greater London. It is situated east-southeast of Charing Cross.
Greenwich is notable for its maritime history and for giving its name to the Greenwich ...
and Deptford
Deptford is an area on the south bank of the River Thames in southeast London, within the London Borough of Lewisham. It is named after a Ford (crossing), ford of the River Ravensbourne. From the mid 16th century to the late 19th it was home ...
, terminating at Lewisham railway station
Lewisham is a National Rail and Docklands Light Railway station in Lewisham, south-east London which first opened in 1849. On the National Rail network it is measured from and is operated by Southeastern.SoutheasternStation facilities: Lewish ...
. The ambitions of the operators were supported by politicians in Parliament, including the future Labour Deputy Prime Minister John Prescott
John Leslie Prescott, Baron Prescott (born 31 May 1938) is a British politician who served as Deputy Prime Minister of the United Kingdom from 1997 to 2007 and as First Secretary of State from 2001 to 2007. A member of the Labour Party, he w ...
, and Lord Whitty; and by 1996 construction work had begun.
The Lewisham extension opened on 20 November 1999, at a cost of £200m funded mostly by the private sector as a Private finance initiative. It left the Island Gardens route south of the Crossharbour turn-back sidings, and dropped gently to , where a street-level station replaced the high-level one on the former London & Blackwall Railway
Originally called the Commercial Railway, the London and Blackwall Railway (L&BR) in east London, England, ran from Minories to Blackwall via Stepney, with a branch line to the Isle of Dogs, connecting central London to many of London's docks. ...
viaduct. The line then entered a tunnel, following the route of the viaduct to a shallow subsurface station at , accessible by stairs or a lift. It crossed under the Thames to in the centre of Greenwich, and surfaced at Greenwich railway station, with cross-platform interchange between the northbound track and the London-bound main line. The line snaked on a concrete viaduct to , before descending to at street level, close to Lewisham town centre, terminating in two platforms between and below the main-line platforms at Lewisham railway station, with buses stopping outside the station. The extension quickly proved profitable.
Extensions to London City Airport & Woolwich (2004–2009)
An extension to London City Airport
London City Airport is a regional airport in London, England. It is located in the Royal Docks in the Borough of Newham, approximately east of the City of London and east of Canary Wharf. These are the twin centres of London's financial ...
from the existing Beckton branch was explored in the mid-90s, at first via travelator from Royal Albert, and then in 1998 via a proposed lift-bridge over the dock with an intermediate station at West Silvertown. The government initially supported this proposal, and in 1999 was developed to the route known today with a further extension to King George V. At this time, the further route to Woolwich Arsenal was developed with an intermediate station at Woolwich Reach, but was viewed as a longer term aspiration. The Woolwich Reach station (on the south bank of the Thames, at the site of the Marlborough Road ventilation and escape shaft), was descoped in 2000.
The extension was aided by a five-year programme of investment for public transport across London that was unveiled by Mayor of London Ken Livingstone on 12 October 2004. On 2 December 2005, an eastward branch along the approximate route of the former Eastern Counties and Thames Junction Railway
The Eastern Counties and Thames Junction Railway in east London connected the Royal Docks with the Eastern Counties Railway (ECR). Authorised in 1844, it opened in 1846, and was absorbed by the ECR in 1847. The ECR amalgamated with other railwa ...
on the southern side of the Royal Docks complex opened from Canning Town to via .
A further extension from to Woolwich Arsenal opened on 10 January 2009, providing interchange with the North Kent main line, close to the planned future stop on the Crossrail
Crossrail is a railway construction project mainly in central London. Its aim is to provide a high-frequency hybrid commuter rail and rapid transit system crossing the capital from suburbs on the west to east, by connecting two major railway l ...
line to Abbey Wood via West India and Royal Docks, met by Private Finance Initiative funding. Construction began in June 2005, the same month that the contracts were finalised, and the tunnels were completed on 23 July 2007, and formally opened by Boris Johnson
Alexander Boris de Pfeffel Johnson (; born 19 June 1964) is a British politician, writer and journalist who served as Prime Minister of the United Kingdom and Leader of the Conservative Party from 2019 to 2022. He previously served as F ...
, Mayor of London
The mayor of London is the chief executive of the Greater London Authority. The role was created in 2000 after the Greater London devolution referendum in 1998, and was the first directly elected mayor in the United Kingdom.
The current m ...
on 12 January 2009. Following completion, the project was shortlisted for the 2009 Prime Minister's Better Public Building Award.
The original station was closed in mid-2008 for complete reconstruction. The two terminal tracks either side of a narrow island platform were replaced by a single track between two platforms, one for arriving passengers and the other for departing (Spanish solution
In railway and rapid transit parlance, the Spanish solution is a station layout with two railway platforms, one on each side of the track, which allows for separate platforms for boarding and alighting.
Description
This platform arrangement allo ...
). It reopened on 2 March 2009.
As part of an upgrade to allow three-car trains, strengthening work was necessary at the Delta Junction north of . It was decided to include this in a plan for further grade separation to eliminate the conflict between services to Stratford and from Bank. A new timetable was introduced, with improved frequencies at peak hours. The new grade-separated route from Bank to Canary Wharf is used throughout the day, bypassing West India Quay station until mid-evening. Work on this project proceeded concurrently with the three-car upgrade work and the 'diveunder' (sometimes referred to as a flyunder but DLR have coined the term in this instance 'diveunder'), and the improved timetable came into use on 24 August 2009.
Upgrade to three-car trains (2007–2011)
With the development of the eastern Docklands as part of the Thames Gateway
Thames Gateway is a term applied to an area around the Thames Estuary in the context of discourse around regeneration and further urbanisation. The term was first coined by the UK government and applies to an area of land stretching east from ...
initiative and London's staging of the 2012 Summer Olympics, several extensions and enhancements were undertaken.
Capacity was increased by upgrading for trains with three cars, each with four doors per side. The alternative of more frequent trains was rejected as the signalling changes needed would have cost no less than upgrading to longer trains and with fewer benefits. The railway had been built for single-car operation, and the upgrade required both strengthening viaducts to take heavier trains and lengthening many platforms. The extra capacity was useful for the 2012 Summer Olympics, which increased the use of London's transport network. The main contractor for the expansion and alteration works was Taylor Woodrow
Taylor Woodrow was one of the largest housebuilding and general construction companies in Britain. It was listed on the London Stock Exchange and was a constituent of the FTSE 100 Index until its merger with rival George Wimpey to create Ta ...
.
Elverson Road, Royal Albert, Gallions Reach and Cutty Sark have not been extended for three-car trains; such extension may be impossible in some cases. Selective door operation
Selective door operation (SDO), also known as selective door opening, is a mechanism employed primarily on trains (although buses with multiple doors also generally have this feature) that allows the driver or conductor/guard to open the doors of ...
is used, with emergency walkways in case a door fails to remain shut. station is underground, and both costs and the risk to nearby historic buildings prevent platform extension. The tunnel has an emergency walkway. Additional work beyond that needed to take the three-car trains was also carried out at some stations. This included replacing canopies with more substantial ones along the full platform length. A new station has been built east of the former location as nearby curves precluded lengthening. now has a third platform.
For this upgrade DLR purchased an additional 31 cars compatible with existing rolling stock. The works were originally planned as three phases: Bank-Lewisham, Poplar-Stratford, and the Beckton branch. The original £200m contract was awarded on 3 May 2007. Work started in 2007 and Bank-Lewisham was originally due to be completed in 2009. However, the work programme for the first two phases was merged and the infrastructure work was completed by the end of January 2010. The Lewisham-Bank route now runs three-car trains exclusively. They started running on the Beckton branch on 9 May 2011. Stratford to Lewisham and Bank to Woolwich Arsenal services sometimes operate as three-car trains; other routes run the longer trains when required.
Extension to Stratford International (2011)
In addition to the three-car station extensions, partly funded from the 2012 Olympics budget, a line was opened from Canning Town to Stratford and Stratford International railway station along the former North London Line of the national railway system, with additional stations. It parallels the London Underground Jubilee line for much of its length.
The extension to Stratford International, taking over the North London Line from Canning Town to Stratford, links the Docklands area with domestic high-speed services on High Speed 1. It was an important part of transport improvements for the 2012 Olympic Games, much of which were held on a site adjoining Stratford International.
The first contract for construction work was awarded on 10 January 2007 and construction started in mid-2007. Originally scheduled to open in mid-2010, the line opened on 31 August 2011. On 11 November 2015 the Mayor of London announced that all stations on this line would be rezoned from zone 3 to zone 2/3.
New stations were , , , , and Stratford International. Of these, Canning Town, West Ham and Stratford are former North London Line stations, and Stratford High Street was built on the site of railway station.
From Canning Town to Stratford the extension runs parallel to the Jubilee line
The Jubilee line is a London Underground line that runs between in east London and in the suburban north-west, via the Docklands, South Bank and West End. Opened in 1979, it is the newest line on the Underground network, although some secti ...
of the London Underground
The London Underground (also known simply as the Underground or by its nickname the Tube) is a rapid transit system serving Greater London and some parts of the adjacent counties of Buckinghamshire, Essex and Hertfordshire in England.
The ...
. As well as providing interchange with the adjacent Jubilee line stations, there are additional DLR stations at Star Lane, Abbey Road and Stratford High Street.
At Stratford new platforms were built for the North London Line at the northern end of the station. The old platforms (formerly 1 and 2) adjacent to the Jubilee line were rebuilt for the DLR, renumbered 16 (towards Stratford International) and 17 (towards Beckton/Woolwich Arsenal). Interchange between the Stratford International branch and DLR trains via Poplar is possible although the platforms are widely separated and at different levels. There is no physical connection between the two branches.
Relocation of Pudding Mill Lane station (2014)
One of the tunnel portals for Crossrail
Crossrail is a railway construction project mainly in central London. Its aim is to provide a high-frequency hybrid commuter rail and rapid transit system crossing the capital from suburbs on the west to east, by connecting two major railway l ...
is on the original site of Pudding Mill Lane station. As a consequence, work was carried out to divert the DLR between City Mill River and the River Lea onto a new viaduct further south. This included a replacement station, which opened on 28 April 2014. The former station stood on the only significant section of single track on the system, between Bow Church and Stratford. The opportunity was taken to double the track in three stages, to improve capacity. There was originally no provision for works beyond the realigned section in the Crossrail Act.
Current system
Network
The DLR has of tracks, with 45 stations. There are six branches: to Lewisham in the south, and Stratford International in the north, and Woolwich Arsenal in the east, and Central London in the west, splitting to and .
The northern, southern and south-eastern branches terminate at the National Rail stations at Stratford, Stratford International, Lewisham and Woolwich Arsenal. Other interchanges with National Rail are at Limehouse
Limehouse is a district in the London Borough of Tower Hamlets in East London. It is east of Charing Cross, on the northern bank of the River Thames. Its proximity to the river has given it a strong maritime character, which it retains through ...
, Greenwich
Greenwich ( , ,) is a town in south-east London, England, within the ceremonial county of Greater London. It is situated east-southeast of Charing Cross.
Greenwich is notable for its maritime history and for giving its name to the Greenwich ...
and West Ham
West Ham is an area in East London, located east of Charing Cross in the west of the modern London Borough of Newham.
The area, which lies immediately to the north of the River Thames and east of the River Lea, was originally an ancient ...
, while out-of-station interchanges for Oyster card
The Oyster card is a payment method for public transport in London (and certain areas around it) in England, United Kingdom. A standard Oyster card is a blue credit-card-sized stored-value contactless smart card. It is promoted by Transport ...
holders are available between Shadwell DLR station and London Overground
London Overground (also known simply as the Overground) is a suburban rail network serving London and its environs. Established in 2007 to take over Silverlink Metro routes, (via archive.org). it now serves a large part of Greater London as w ...
's station of the same name, and between Fenchurch Street and the DLR's western termini of Tower Gateway and Bank.
Between Limehouse and Tower Gateway, the DLR runs parallel to the London, Tilbury and Southend line.
Services
With four platforms and separated tracks at Canning Town and Poplar where the lines intersect, the network could theoretically support three discrete routes to maximise tph, although in practice the automated running of trains and turnaround capacities at each terminus supports the mix of routes available, with all sections of track bar part of the Bank-bound junction at West India Quay seeing regular use.
The following services are operated in normal off-peak service from 26 September 2022:
At peak times, these same services run, but with the frequency improved by 25% (6tph becomes 7.5tph, 12tph becomes 15tph). Additionally, in the morning peak, alternate Stratford - Canary Wharf services extend to/from Lewisham.
At terminal stations trains reverse direction in the platforms, except at Bank where there is a reversing headshunt in the tunnel beyond the station. During service disruption or planned engineering work, trains can also turn back at and . There is also capability for an additional shuttle from Canning Town to Prince Regent when exhibitions are in progress at the ExCeL exhibition centre
ExCeL London (an abbreviation for Exhibition Centre London) is an exhibition centre, international convention centre and former hospital in the Custom House area of Newham, East London. It is situated on a site on the northern quay of the ...
, although this is not supported by any additional turnback infrastructure. Trains serve every station on the route, but trains from Bank to Lewisham do not call at West India Quay
West India Quay is an area in the London Docklands, London, England. It is immediately to the north of the West India Docks and Canary Wharf. The warehouse at West India Quay was used to store imported goods from the West Indies, such as tea, sug ...
because they are routed along the diveunder track to avoid junction conflicts. During long-term works for extension projects, other routes may be operated at weekends, such as Beckton to Lewisham if the Bank branch is closed.
Future services
The new rolling stock introduced from 2023 will support service improvements, with peak Stratford International - Woolwich Arsenal services increasing to 15tph, peak Stratford - Canary Wharf services extended to Lewisham and a peak Stratford International - Beckton service.
Stations
Most stations are elevated
An elevated railway or elevated train (also known as an el train for short) is a rapid transit railway with the tracks above street level on a viaduct or other elevated structure (usually constructed from steel, cast iron, concrete, or bricks ...
, with others at street level, in cutting or underground. Access to the platforms is mostly by staircase and lift, with escalators at some stations. From the outset the system has been fully accessible to wheelchairs; much attention was paid to quick and effective accessibility for all passengers. The stations have high platforms matching the floor height of the cars, allowing level access for passengers with wheelchairs or pushchairs.
Most stations are of a modular design dating back to the initial system, extended and improved with two side platforms, each with separate access from the street, and platform canopies, although few examples remain of the original, distinctive rounded roof design. Stations are unstaffed, except the underground stations at , Stratford International and Woolwich Arsenal for safety reasons, a few of the busier interchange stations , Canning Town, West Ham
West Ham is an area in East London, located east of Charing Cross in the west of the modern London Borough of Newham.
The area, which lies immediately to the north of the River Thames and east of the River Lea, was originally an ancient ...
, and City Airport, which has a ticket office for passengers unfamiliar with the system. Canning Town, Custom House and Prince Regent are normally staffed on the platform whenever there is a significant exhibition at the ExCeL exhibition centre.
On 3 July 2007, DLR officially launched an art programme called DLR Art, similar to that on the London Underground, Art on the Underground
Art on the Underground, previously called ''Platform for Art'', is Transport for London's (TfL) contemporary public art programme. It commissions permanent and temporary artworks for London Underground, as well as commissioning artists to creat ...
. Alan Williams was appointed to produce the first temporary commission, called "Sidetrack", which portrays the ordinary and extraordinary sights, often unfamiliar to passengers, on the system and was displayed throughout the network.
Fares and ticketing
The system is part of the London fare zone system, and Travelcard
The Travelcard is an inter-modal travel ticket for unlimited use on the London Underground, London Overground, Elizabeth line, Docklands Light Railway, London Trams, London Buses and National Rail services in the Greater London area. Tr ...
s that cover the appropriate zones are valid. There are one-day and season DLR-only "Rover" tickets, plus a one-day DLR "Rail and River Rover" ticket for the DLR and City Cruises river boats. Tickets can be purchased from ticket machines at the entrances to platforms, and are required before accessing the platform. Passengers using Oyster
Oyster is the common name for a number of different families of salt-water bivalve molluscs that live in marine or brackish habitats. In some species, the valves are highly calcified, and many are somewhat irregular in shape. Many, but not ...
pay-as-you-go and contactless bank-cards need to touch both in and out of the system using card readers on automatic gates and platforms. There are no ticket barriers at DLR-only stations: correct ticketing is enforced by random on-train inspections by PSAs. There are barriers at Bank
A bank is a financial institution that accepts deposits from the public and creates a demand deposit while simultaneously making loans. Lending activities can be directly performed by the bank or indirectly through capital markets.
Because ...
, , Woolwich Arsenal, West Ham and , where the DLR platforms are within a London Underground
The London Underground (also known simply as the Underground or by its nickname the Tube) is a rapid transit system serving Greater London and some parts of the adjacent counties of Buckinghamshire, Essex and Hertfordshire in England.
The ...
or National Rail
National Rail (NR) is the trading name licensed for use by the Rail Delivery Group, an unincorporated association whose membership consists of the passenger train operating companies (TOCs) of England, Scotland, and Wales. The TOCs run the ...
barrier line. Users of payment cards who have failed to touch in at the start of the journey, and other passengers without a correct ticket, may be liable to a £80 penalty fare or prosecution for fare evasion.
Rolling stock
The DLR is operated by 149 high-floor bi-directional single-articulated
An articulated vehicle is a vehicle which has a permanent or semi-permanent pivot joint in its construction, allowing it to turn more sharply. There are many kinds, from heavy equipment to buses, trams and trains. Steam locomotives were sometim ...
Electric Multiple Units (EMUs). Each car has four double doors on each side, and two or three cars make up a train. There are no cabs because normal operations are automated; a small driver's console is concealed behind a locked panel at each end, from which the PSA can drive the car. Consoles at each door opening allow the PSA to control door closure and make announcements whilst patrolling the train. With the absence of a driver's position, the fully glazed car ends provide a forward and rear view for passengers. The operational top speed is .
Despite having high floors and being automated, the cars are derived from a German light-rail design intended for street running. All cars look similar but there have been several different types, some still in service, others sold to other operators. Units were purchased from Bombardier in 2005 and delivered between 2007 and 2010.
Future rolling stock
In 2017, TfL opened bidding for new full-length, walk-through trains, subsequently awarded to CAF in 2019 and expected in service in 2023. Forty-three 5-car trains were ordered, 33 to replace the existing stock and ten to increase service capacity. The design of the train increases internal capacity by 10%, which combined with service improvements will bring about a 65% increase in capacity from Stratford to Lewisham, and a doubling of capacity between Canning Town and Beckton/Woolwich Arsenal. The trains will feature charging points and air-conditioning.
Depots
The network has two depots, at Poplar and Beckton
Beckton is a suburb in east London, England, located east of Charing Cross and part of the London Borough of Newham. Adjacent to the River Thames, the area consisted of unpopulated marshland known as the East Ham Levels in the parishes of Barki ...
. Poplar was opened with the initial line in 1987. Due to the constrained site, a new, larger, depot at Beckton was opened in 1994 and is now the main maintenance depot and primary control centre for the network. Track maintenance, off-peak train stabling, as well as the Operating and Maintenance Centre (OMC for TfL Staff) and the Hilton, Ritz and Dorchester Buildings houses the KeolisAmey Docklands franchise staff and the secondary back-up control centre are based at Poplar.
Signalling technology
Originally the DLR used signalling
In signal processing, a signal is a function that conveys information about a phenomenon. Any quantity that can vary over space or time can be used as a signal to share messages between observers. The ''IEEE Transactions on Signal Processing'' ...
based on a fixed-block technology developed by GEC-General Signal and General Railway Signal
General Railway Signal Company (GRS) was an American manufacturing company located in the Rochester, New York area. GRS was focused on railway signaling equipment, systems and services. The company was established in 1904 and became part of Alsto ...
. This was replaced in 1994 with a moving-block TBTC (Transmission Based Train Control) system developed by Alcatel Alcatel may refer to:
* Alcatel, a former French telecommunications equipment company, which became Alcatel-Lucent and is now part of Nokia
* Alcatel Mobile, a brand of mobile phones, tablets and wearables, formerly a joint venture between Alcatel ...
, called SelTrac. The SelTrac system was bought by Thales
Thales of Miletus ( ; grc-gre, Θαλῆς; ) was a Greek mathematician, astronomer, statesman, and pre-Socratic philosopher from Miletus in Ionia, Asia Minor. He was one of the Seven Sages of Greece. Many, most notably Aristotle, regarded ...
in 2007 and updates are provided by Thales Rail Signalling Solutions. The same technology is used by rapid transit
Rapid transit or mass rapid transit (MRT), also known as heavy rail or metro, is a type of high-capacity public transport generally found in urban areas. A rapid transit system that primarily or traditionally runs below the surface may be ...
systems including Vancouver's SkyTrain, Toronto's SRT, the San Francisco Municipal Railway
The San Francisco Municipal Railway (SF Muni or Muni), is the public transit system for the City and County of San Francisco. It operates a system of bus routes (including trolleybuses), the Muni Metro light rail system, three historic cabl ...
and Hong Kong's MTR. The SelTrac S40 system has also been adopted by the London Underground
The London Underground (also known simply as the Underground or by its nickname the Tube) is a rapid transit system serving Greater London and some parts of the adjacent counties of Buckinghamshire, Essex and Hertfordshire in England.
The ...
Jubilee line
The Jubilee line is a London Underground line that runs between in east London and in the suburban north-west, via the Docklands, South Bank and West End. Opened in 1979, it is the newest line on the Underground network, although some secti ...
and Northern line
The Northern line is a London Underground line that runs from North London to South London. It is printed in black on the Tube map. The Northern line is unique on the Underground network in having two different routes through central London, tw ...
. Transmissions occur via an inductive loop cable between each train's Vehicle On-Board Controller ( VOBC) and the control centre (VCC, SMC) at Beckton. If this link is broken and communication is lost between the VOBC and VCC, SMC, the train stops until it is authorised to move again. If the whole system fails the train can run in restricted manual at for safety until the system is restored and communication is re-established. Emergency brakes can be applied if the train breaks the speed limit during manual control or overshoots a fixed stopping point, or if it leaves the station when the route has not been set. A secondary control centre is based at Poplar, the location of the original control centre, which can operate immediately should there be any issues with the primary at Beckton.
Corporate affairs
Ownership and structure
Initially, DLR was a wholly owned subsidiary of London Regional Transport. In 1992, it was transferred to the London Docklands Development Corporation
The London Docklands Development Corporation (LDDC) was a quango agency set up by the UK Government in 1981 to regenerate the depressed Docklands area of east London. During its seventeen-year existence it was responsible for regenerating an a ...
.
The infrastructure is owned by Docklands Light Railway Ltd, part of the London Rail
London Rail is a directorate of Transport for London (TfL), involved in the relationship with the National Rail network within Greater London, UK which manages TfL's non-London Underground train services.
Operations
London Rail manages the ...
division of Transport for London (TfL), which also manages London Overground
London Overground (also known simply as the Overground) is a suburban rail network serving London and its environs. Established in 2007 to take over Silverlink Metro routes, (via archive.org). it now serves a large part of Greater London as w ...
, London Trams
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