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Text removed from List of Docklands Light Railway stations article - text to be reviewed for integration into main DLR article.

Background
For over 200 years London's docks and wharves thrived on imperial commerce. From the Pool of London and St Katharine Docks close to the Tower of London they grew eastwards along both sides of the River Thames to include the London Docks, Surrey Docks, Limehouse Dock, West India Docks, Millwall Dock, East India Docks and the three Royal Docks, extending to Barking and becoming the world's largest port. The docks stimulated and supported an extensive network of industrial enterprise such as ship repair, heavy engineering, food processing, warehousing and distribution plus industries based on imported raw materials, particularly tobacco, timber and skins. The expansion of the docks culminated with the King George V Dock, opened by the King in 1921. In the 1930s the docks were at their peak, employing hundreds of thousands of people, but technological and managerial changes and changing patterns of trade led to a gradual decline after World War II. The government started to look at the implications and consequences of possible closures and alternative uses.

In 1962, the Rochdale Report was published, concerned with the London Docks and St Katherine Dock. It recognised that whilst activities at the docks were useful, the traffic could be developed elsewhere in the port or at the Port of Tilbury. The docks could be filled in and used for storage, and warehouses could be used by private enterprise. After extensive review, the Port of London Authority (PLA) decided that the smaller up-stream docks were not commercially viable, and closures began in 1967 with East India Dock and 1968 with St Katherine Dock, London Docks and Surrey Docks. Other docks were under serious threat: between 1966 and 1976 the PLA workforce in the boroughs of Tower Hamlets, Newham, Southwark, Lewisham and Greenwich reduced by 20 percent. The objective of the closures was to concentrate resources at Tilbury downstream for containerisation and the accommodation of larger ships with profitable bulk cargoes in the Lower Thames Estuary. A five-year phased project was set up in 1970 by the PLA to close more upper docks and berths. Competition from air traffic and European ports also contributed to the decline of trade within the London Docklands until only the Royal Docks remained in operation. The Royal Docks closed in 1981.

A report published in 1973 by the London Docklands Study Team saw future demand for better transport in the Isle of Dogs. An early suggestion was an underground line, but it was thought that there was insufficient demand. The idea was revived in 1976, but put on hold by Norman Fowler in 1979 in favour of lower-cost alternatives. In 1974, the Docklands Joint Committee was formed from the dockland boroughs and the Greater London Council (GLC), with a plan to redevelop the London Docklands with new industry and housing as quickly as possible. Throughout the 1970s light rail options were proposed. A later recommendation was an automatic light rail option from Aldgate East to the Isle of Dogs and Beckton. As an alternative to the east-west route, a cheaper north-south route from the Isle of Dogs was considered, but later forecasts of population and employment growth, coupled with the absence of any connection to the south of the river, showed that both routes were needed. The London Docklands Development Corporation (LDDC), formed in 1981 with responsibility to regenerate the whole area, helped to speed up the process.

In June 1982, a report published by the GLC, LDDC and other authorities recommended the construction of two light rail routes from the City of London and Mile End to the Isle of Dogs. Funding for the Docklands Light Railway was promised within three months. Later, £77 million was approved to be spent by 1987. In the mid-1980s it was found that the original plan to run at street level along the A11 to Mile End could not be achieved, so an alternative route was found along a railway cutting north to Stratford. This provided better transport connections and the line could use a disused platform at Stratford station.

Opening and extensions
The routes from Tower Gateway and Stratford to Island Gardens opened on 31 August 1987, with 15 stations. The tracks used a combination of redundant and new viaducts and underused routes. The station at Canary Wharf did not open until 1991, as the first sections of the Canary Wharf development were still under construction. Sites for stations at Carmen Street (later Langdon Park) and Pudding Mill Lane were safeguarded, the latter to be on a passing loop on the Stratford branch. The extension to Beckton opened on 28 March 1994.

In 1997 the DLR commissioned a study into expansion of the network, as there were still significant transport gaps. One of the planned extensions was from Canning Town to North Woolwich – options considered included North Woolwich station and a site near King George V Dock. The development of Silvertown and North Woolwich and the projected expansion of London City Airport led to this line being planned with a possible extension to Woolwich Arsenal. The branch opened to King George V station on 2 December 2005, with Woolwich Arsenal opening on 10 January 2009. On this branch a station site has been safeguarded at Thames Wharf whilst the area awaits redevelopment.

With plans being developed for regeneration around Stratford International station and the expansion of London City Airport, connecting the two along the North London Line route via Canning Town was investigated. Whilst it was acknowledged that the Jubilee line already ran over part of the route between Canning Town and Stratford, it was seen that the DLR link would be valuable and that it could connect with Stratford International at a low cost and with less difficulty if the North London Line was closed and converted for DLR use between Stratford and Canning Town. The North London Line closed between Stratford and North Woolwich in 2006, and the extension opened in 2012 with the former North London line platforms at West Ham and Stratford rebuilt for DLR trains and new stations at Star Lane, Abbey Road, Stratford High Street and Stratford International. A station between Stratford and Stratford International was proposed at Carpenters Road.

Tower Gateway station was seen as an interim solution to serve the City within the original £77 million budget. Almost immediately it became apparent that two-car trains stopping at short platforms would not be able to cope with the projected 50,000 people working in the Canary Wharf development. £276 million was spent on upgrading the signalling, lengthening the platforms and providing an extension to Bank, which was built in 1991. When the system opened, the section south of Crossharbour station followed a disused viaduct of the Millwall Extension Railway. It ran beside East Ferry Road to where it diverged east onto a new bridge to accommodate Mudchute station before returning to the railway's 1872 single-track viaduct through Millwall Park to a terminus at Island Gardens. For the £200 million extension under the River Thames to Lewisham, the route south of Crossharbour was replaced with a new alignment to the tunnel under the river. Mudchute and Island Gardens stations were resited onto the new route, with Island Gardens being constructed underground. Canning Town station was resited to accommodate the Jubilee line extension. South Quay was resited in 2009 to accommodate three-car trains across the network. The original site had sharp curves at each end, making extension impossible.

Future developments
An extension to Dagenham Dock has been proposed, but is currently unfunded. Another previous proposal was an extension to Thamesmead. These were to both start from just east of Gallions Reach on the Beckton branch. Consideration has been given to an extension west from Bank to the disused Jubilee line platforms at Charing Cross.

There have been numerous other proposals for stations along the line. These have included, or still do include the following:
 * Thames Wharf, between Canning Town and West Silvertown,
 * Woolwich Reach, between King George V and Woolwich Arsenal,
 * Connaught between Prince Regent and Royal Albert,
 * Silvertown, between Pontoon Dock and London City Airport
 * Tower Hill, on the Bank branch.