- Docklands Light Railway rolling stock
Docklands Light Railway Rolling Stock
B07 stock train in 2008 livery at Poplar DLR station
The interior of the new B07 Rolling Stock
In service P86: 1987-1991
Manufacturer Bombardier Transportation Number built 118 trainsets, 31 more on order Formation 2 cars per trainset, planned upgrade to 3 cars per trainset  Capacity
- Total: 70
- Pairs: 12
- Longitudinal: 42
- Tip-up: 4
Operator Docklands Light Railway Depot(s) Near Poplar DLR station
Near Gallions Reach DLR station
Line(s) served Docklands Light Railway Specifications Train length 2 car set: 56 m (183 ft 9 in) (57.6 m (189 ft 0 in) over couplers) Car length 28 m (91 ft 10 in) (28.8 m (94 ft 6 in) over coupler) Width 2.65 m (8 ft 8 in) Height P86/P89: 3.47 m (11 ft 5 in)
B90/B92/B2K: 3.51 m (11 ft 6 in)
B07: 3.51 m (11 ft 6 in)
Floor height 1.03 m (3 ft 5 in) Doors 2 pairs of doors each side per car, 1.5 m (4 ft 11 in) wide Maximum speed 100 km/h (62 mph) (Maximum Speed Capable)
64 km/h (40 mph) (Fastest Operation Speed)
64 km/h (40 mph) (Regular Operational Speed) 
Weight 36 tons Electric system(s) 750 V DC Current collection method Third rail bottom contact Gauge 1,435 mm (4 ft 8 1⁄2 in) Standard gauge
Docklands Light Railway rolling stock is the passenger trains and service vehicles (collectively known as 'rolling stock') used on the Docklands Light Railway (DLR), which serves the London Docklands area in the east of London.
The passenger stock consists of high-floor, bi-directional, single-articulated electrical multiple units. The trains are formed from sets of 2 or 3 semi-permanently connected cars, the increase to 3-car trains being introduced progressively on the busiest routes in 2010, following substantial platform extension works. The trains are fully automated and have no driver, but a Passenger Service Agent (PSA), and titled the "Train Captain" in the system's earlier years, is in attendance in each train and can take control at a driver's console if required.
There have been three different main types of DLR rolling stock, but only two of them (the B90/B92/B2K fleet and the B07 fleet) are in operation; the original P86/P89 stock having been withdrawn in 1991/1995 and sold to a German operator in Essen.
Passenger stock overview
The passenger stock consists of high-floor, bi-directional, single-articulated electrical multiple units. The trains have four doors on each side and each train is normally composed of two 28-metre (92 ft)-long cars. A third car was added on the busiest routes in 2010. Each car has 70 seats and has a total capacity of 284 passengers.
The cars have no driver's cab, although there is a small driver's console concealed behind a locked panel at each outer car end from which the Passenger Service Agent (PSA) can drive the train when necessary. Other consoles at each door opening allow the PSA to control door closure and make announcements whilst patrolling the train. Because of the absence of a driver's position, the fully glazed car ends provide a panoramic forward (or rear) view for passengers. At least one PSA is required on each train to close the doors upon departing and for emergency situations, such as taking the controls or evacuating the train, especially in tunnelled sections.
Despite having high floors and being highly automated, the cars are derived from a German light rail design, which was intended for use in systems with elements of street running. All the cars that have operated on the system look similar, but there have been five separate types, three of which are still in operation on the Docklands Light Railway. A further car type, with quite different styling, was first displayed in March 2008 and entered service in September 2008.
The DLR stock units have a maximum speed of 100 km/h (62 mph), but the fastest speed reached is 80 km/h (50 mph) in the tunnel under the River Thames to Woolwich Arsenal station.
P86 and P89 rolling stock
The fleet for the 1987 opening consisted of 11 light-rail vehicles (LRVs) built in 1986 by Linke-Hofmann-Busch (LHB, now Alstom) in Germany and numbered 01 to 11. These were referred to as P86 stock, the 'P' referring to Poplar depot, where they were maintained. Vehicle 11 made history several times. It was part of a light rail demonstration at Debdale Park, Manchester for which it had a pantograph fitted by Balfour Beatty. The demonstration took place on 9 February 1987 as evaluation trials for a potential tram system in Manchester. P11 was the last unit to be delivered to the DLR at Poplar on 30 March 1987, without the pantograph. It was also the vehicle used by the Queen and the Duke of Edinburgh during the royal opening of the railway on 30 July 1987: the train ran from Island Gardens (when originally above ground) to Poplar and then to Tower Gateway. P11 also formed the first revenue-earning DLR vehicle and was the first vehicle to be moved to Essen in 1991.
There were 84 seats in each car with most arranged in transverse bays of four to take advantage of the large windows. There were two wheelchair bays, and twelve longitudinal seats increased the circulation area. An emergency console for the Train Captain was provided but locked when out of use. These cars were built for the initial above-ground system and, because of failing to meet safety requirements, were not allowed to operate on the tunnelled extension to Bank. Because of this, and because adaptation to a new signalling system was too costly, these cars were sold in 1991 to Essener Verkehrs-AG of Essen, Germany, where they were extensively rebuilt and put into service on its Stadtbahn between 1994 and 1998. Originally, they retained DLR colours and were limited to route U11, but after a further modification programme started in 2005, trains are appearing in a yellow livery and are used on all routes.
In 1989-1990, BREL in Derby, UK, supplied another ten LRVs, numbered 12 to 21. These share the characteristics of the original P86 stock. They were, though, equipped with sufficient fire-proofing to operate through the tunnels of the Bank extension. These were designated P89 stock and remained in operation on the DLR until 1995. The two initial car types were effectively identical in appearance; apart from the car numbers one difference was the red livery underneath the end window was notably more orange and reflective on the P89 cars than on the original P86 ones. The P89s were rebuilt with sliding doors. They were also sold to Essen, where they entered service between 1999 and 2004 after major modifications had been carried out. They are now painted yellow and blue and are used on all routes of the Essen Stadtbahn network.
As the Essen Stadtbahn does not use fully automated driving, and uses overhead line rather than third rail power collection, the modifications to both sets of cars involved fitting driver's cabs and pantographs. Today , the P89 operates on U17 and U18 lines.
B90/B92/B2K rolling stock
Further vehicles were required as the network grew and as the original P86 and P89 cars had to be replaced due to their unsuitability for the changed system conditions. Bombardier built 23 vehicles of B90 stock in 1991, 47 vehicles of B92 stock between 1993 and 1995, and 24 vehicles of B2K stock in 2001 and 2002. When new the B2K stock differed from the earlier vehicles in appearance as the doors and handrails were painted in colours contrasting to their surroundings. They are also fitted with internal LCD display screens. These differences were all mandated by the Rail Vehicle Accessibility Regulations (RVAR) of the Disability Discrimination Act (DDA), which were not in force when the older cars were built.
The 'B' in the type codes refers to Beckton DLR depot, where they are primarily maintained. They are of a common design and can be operated interchangeably in trains of up to three sets.
The DLR fleet at the end of 2004 consisted of:
- 22–44: Bombardier B90, built in 1991
- 45–91: Bombardier B92, built 1993–1995
- 92–99, 01–16: Bombardier B2K, built 2001–2002
The numbering of the last B2K cars restarted at 01, reusing the numbers of the replaced, original cars. The main reason for this was that the DLR computer system had only been designed originally to handle 2-digit car numbers, and an upgrade to allow 3-digit car numbers did not take place until some time after these cars were received.
DLR cars had a common livery of blue, red, and white upon delivery. Over the years, several vehicles have received all-over advertising livery. A new livery of turquoise and blue was tested on B92 car 40 in the mid-1990s, but it was not adopted, and the car was repainted in standard livery a few years later. The B90, B92 and B2K stocks were refurbished starting in 2004 with the completed trains re-entering service with a redesigned interior and in a new livery of red and blue with grey doors to comply with the Disability Discrimination Act. The refurbished units feature an Audio and Visual Information System (AVIS) which gives audio announcements when approaching a station: "This train is for destination, the next stop is next stop", for example: "This train is for Bank, the next stop is Canary Wharf". It also announces the name of the station when the doors have opened, for example: "This is Canary Wharf".
B07 rolling stock
In May 2005, Bombardier announced that they would be providing a further 24 vehicles of a new design, which they consider superior to the B90/B92/B2K. The new cars, needed for network extensions and three-car service on the Bank–Lewisham route, were to be delivered between May 2007 and September 2008, but were delayed. These vehicles are known as 'B07 stock', and are numbered 101 to 124. The first new DLR train was delivered on 22 December 2007, and three units of B07 stock, 104, 105, and 106, were on display at West India Quay on 13 March 2008. The first train of B07 stock, made up of units 105 and 106, went into service in September 2008. Even by March 2009 few of the new trains had appeared in service, but all units of this batch had entered service by July 2009.
In June 2006, another 31 vehicles were added to this order. This batch was partly funded by the Olympic Delivery Authority and was planned to be delivered by 2009. If previous naming conventions are applied, then it is expected these additional vehicles will be known as the second batch of B07 stock, or the Olympic batch, and will be numbered 125 to 155. All units of this batch have been delivered, with the first six units having been delivered by June 2009. All units entered service by the end of June 2010.
The B07 stock units feature a totally redesigned exterior and interior. It features larger windows and doors and more leg room. In addition, several technical improvements were made for better acceleration, altered door functions to enable faster boarding and alighting, and improved braking for a smoother ride.
The B07 units were the first to operate as 3-car trains in early 2010; the B92 trains followed operating in this way later in 2010. The initial 3-car route was the mainstream Bank to Lewisham route, but the lengthened trains were subsequently operated on other routes as well.
All DLR stock has wheels which have a more angled profile than that on mainline trains, which is effective in dealing with the tight curves encountered on DLR routes. However, a downside to this innovation is that they are partly responsible for violent shaking as the train travels at higher speeds on the straight parts of the route.
B90 stock pulling into Pontoon Dock DLR station
B92 stock train 57 arrives at Canary Wharf DLR station
B2K stock car 02, shown at Canary Wharf station
Bank/Tower Gateway-Canning TownLewisham branchStratford branchBeckton branchWoolwich Arsenal branchStratford International branch
- ^ a b "Docklands Light Railway - Three-carriage Capacity Enhancement Project". Transport for London. http://developments.dlr.co.uk/enhancements/capacity/index.asp. Retrieved 2009-08-08.
- ^ a b "DLR 3 Car". Taylor Woodrow Construction and Vinci (construction). http://www.taylorwoodrow.com/Home/Construction/CurrentProjects/DLR3Car. Retrieved 2009-08-08. [dead link]
- ^ a b c d e "Docklands Light Railway DLR guide". milesfaster.co.uk. 2009. http://www.milesfaster.co.uk/information/docklands-light-railway-dlr.htm. Retrieved 2009-08-03.
- ^ Docklands Light Railway Information Pack by Serco. Serco. August 2003.
- ^ a b c railway-technology.com. "Docklands Light Railway Capacity Upgrading, London London, United Kingdom". SPG Media Group Ltd. http://www.railway-technology.com/projects/docklands/specs.html. Retrieved 2009-08-10.
- ^ a b "Docklands Light Railway : Trains". thetrams.co.uk. 2009. http://www.thetrams.co.uk/dlr/trains/. Retrieved 2009-08-04.
- ^ "DLR finalises three-car upgrade funds for London 2012 Games and beyond". Transport for London. http://pressroom.dlr.co.uk/news/details.asp?id=198. Retrieved 2010-02-08.
- ^ "Docklands Light Railway Key Facts". railway-technology.com. 2009. http://www.railway-technology.com/projects/docklands/specs.html. Retrieved 2009-08-03.
- ^ "DLR safety". Transport for London. 2009. http://www.tfl.gov.uk/gettingaround/4568.aspx. Retrieved 2009-08-04.
- ^ a b c Pearce, Alan; Hardy, Brian; Stannard, Colin (2000). Docklands Light Railway Official Handbook. Capital Transport Publishing. ISBN 1-85414-223-2.
- ^ "New accessibility boost for DLR passengers" (Press release). Transport for London. 2006-05-26. http://www.tfl.gov.uk/corporate/media/newscentre/archive/3615.aspx. Retrieved 2009-08-01.
- ^ a b "New Docklands Light Railway stock unveiled". TheRailwayCentre.com. March 2008. http://www.therailwaycentre.com/News%20March%202008/140308_DLR.html. Retrieved 2008-03-25.
- ^ "Bombardier Receives A $94 Million US Order From Docklands Light Railway For Automatic Light Rail Cars To Be Used In London, UK" (Press release). Bombardier Transportation. May 4, 2005. http://bombardier.com/en/corporate/media-centre/press-releases/details?docID=0901260d8000fc2d. Retrieved 2009-08-03.
- ^ "DLR looks to the future with Olympic train order" (Press release). Transport for London. 2006-06-13. http://pressroom.dlr.co.uk/archive/details.asp?id=111. Retrieved 2009-08-03.
- ^ "Docklands Light Railway - Rolling Stock Enhancements". Transport for London. http://developments.dlr.co.uk/enhancements/rollingstock/index.asp. Retrieved 2009-08-04.
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