The DLR has a total of 94 trains in service, built by BN Construction/Bombardier in Bruges. They are two-car articulated units, which normally operate with two units coupled together. There are three batches of trains in service, made up of two types, designated B90, B92 and B2K—following the convention for London Underground surface rolling stock, the '90' '92' and '2K' (ie. '2000') giving an indication of the year of construction. B92 and B2K stock were built to the same design; B2K stock trains were delivered with changes to internal and external colour schemes made to comply with updated disability discrimination legislation.
Delivery has commenced of a new batch of 24 units, designated B07 stock; these will be followed by a further batch of 31 units, designated B09 stock. These units will be used when the platform extension works have been completed to enable 3-unit trains, and for the new services to Woolwich Arsenal and Stratford International.
When the DLR opened in 1987, it was operated with just eleven trains of P86 stock (numbered 01–11), built by German manufacturer LHB. These were joined in 1989 by 10 cars of P89 stock (numbered 12–21) built by British Rail Engineering Ltd. (BREL). The P86 stock was sold to EVAG in Essen, Germany in 1991, as it was unsuitable for operation in the Bank tunnel; P89 stock followed in 1997.
DLR rolling stock is unique in a number of ways. The trains are designed for full Automatic Train Operation (ATO), and so have no seperate driver's cab. The train may be driven manually by the Passenger Service Agent (formerly Train Captain), by controls normally kept locked under cover at the front of the train, but in normal operation the PSA's only intervention is to press a start button from a position within the passsenger saloon after closing the doors, after which the train proceeds under automatic control. The lack of a cab means unrivalled views from the front passenger seats, particularly spectacular on the ride through the Isle of Dogs.
The other unique feature is the method of current collection—traction current is supplied at 750Vdc through a third rail, but with the current collector making contact with the underside of the conductor rail, which is insulated on the top and sides.
Fleet numbers 22–44 (following on from original P86/89 stock fleet numbers)
Delivered from 1992
Fleet numbers 45–91
Fleet numbers 1–16 and 92–99
Delivery commenced in 2007
Fleet numbers 101–124
Delivery due to commence in 2009
Fleet numbers 125–155
§ unit due for delivery 2008–2009
B07 cars which have been delivered are not yet in service
The original DLR livery, as applied to P66 and P89 stock, comprised a blue skirt and blue body, a red band with white stripe top and bottom below the windows sweeping up around red doors. The 'Docklands' fleetname was applied on the sides at car ends, in Rockwell typeface. The livery has also been used with a more recent DLR logo.
B2K stock was delivered with the same livery as above, but with doors painted white to comply with recent disability regulations that require vehicle doors to be visually distinctive. In this version of the livery, the red band and white stripes do not sweep around doors.
The current DLR livery was introduced in 2004, and is now carried by all B90, B92 and B2K units. This comprises a red base with a blue wavey band (representing the River Thames) along bodyside, silver doors and a turquoise and dark blue 'DLR' variant of the TfL roundel on bodysides and on car ends underneath windscreen. The new B07 units carry a variant of this livery with black ends and window surrounds ('revised DLR').
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