Ken Livingstone, mayor of London seen at the site of the Docklands Light Railway Woolwich Arsenal extension, in London, Monday, April 3, 2006.
The Docklands Light Railway, or DLR, runs past Thames Barrier Park in London, U.K., Friday, July 21, 2006.
Docklands Light Railway train on a bridge over the river Thames, by Chris Hogg, 1993. The Docklands Light Railway opened in 1987, to link North and...
Docklands Light Railway train at Island Gardens Station, by Chris Hogg, 1993. The Docklands Light Railway opened in 1987, to link North and South...
Mayor of London, Boris Johnson, arrives to open the new Woolwich Arsenal station on the Docklands Light Railway on January 12, 2009 in London,...
Mayor of London, Boris Johnson, speaks on a station platform as he opens the new Woolwich Arsenal station on the Docklands Light Railway on January...
Mayor of London, Boris Johnson , speaks to the media on a station platform as he opens the new Woolwich Arsenal station on the Docklands Light...
Mayor of London, Boris Johnson, speaks on a station platform as he opens the new Woolwich Arsenal station on the Docklands Light Railway on January...
Mayor of London, Boris Johnson, is pictured on a train as he opens the new Woolwich Arsenal station on the Docklands Light Railway on January 12,...
Mayor of London, Boris Johnson, is pictured in a train as he opens the new Woolwich Arsenal station on the Docklands Light Railway on January 12,...
Mayor of London, Boris Johnson , looks at a map of the new Woolwich Arsenal station on the Docklands Light Railway on January 12, 2009 in London,...
Mayor of London, Boris Johnson, arrives to open the new Woolwich Arsenal station on the Docklands Light Railway on January 12, 2009 in London,...
Mayor of London, Boris Johnson, speaks at the opening of the new Woolwich Arsenal station on the Docklands Light Railway on January 12, 2009 in...
Mayor of London, Boris Johnson , speaks to staff as he opens the new Woolwich Arsenal station on the Docklands Light Railway on January 12, 2009 in...
Mayor of London, Boris Johnson, arrives to open the new Woolwich Arsenal station on the Docklands Light Railway on January 12, 2009 in London,...
Mayor of London, Boris Johnson, arrives to open the new Woolwich Arsenal station on the Docklands Light Railway on January 12, 2009 in London,...
Mayor of London, Boris Johnson, arrives to open the new Woolwich Arsenal station on the Docklands Light Railway on January 12, 2009 in London,...
Police officers patrol the Docklands Light Railway near the Excel conference centre in east London today, where the G20 leaders are meeting.
Police officers and commuters ride on the Docklands Light Railway past the Excel conference centre in east London today, where the G20 leaders are...
Man runs for a train at Crossharbour & London Arena in east London on the Docklands Light Railway line.
Passengers come and go on the platform at Lewisham on the Docklands Light Railway line in south-east London.
Commuter reads a newspaper as he waits for a train at Canary Wharf station on the Docklands Light Railway line in east London.
Passengers wait on the platform at Shadwell in east London, as a Docklands Light Railway train pulls in, bound for Lewisham in south-east London.
Passengers come and go on an escalator at Bank station on the Docklands Light Railway line in London.
Passengers stand aboard a train running between Bank and Lewisham on the Docklands Light Railway line in east London.
View of Canary Wharf taken from the platform at West India Quay station on the Docklands Light Railway line in east London.
Docklands Light Railway passes the offices of Barclays Plc, and HSBC Holdings Plc in the Canary Wharf financial, business and shopping district as it...
Commuters sit on seats on a Docklands Light Railway train in Stratford in London, U.K., on Monday, Aug. 14, 2017. The Docklands Light Railway, a...
Docklands Light Railway train enters Beckon depot in London, U.K., on Monday, Aug. 14, 2017. The Docklands Light Railway, a low-capacity rail system...
Docklands Light Railway train sits stationary at Beckon depot in London, U.K., on Monday, Aug. 14, 2017. The Docklands Light Railway, a low-capacity...
Passengers disembark a Docklands Light Railway train at Stratford in London, U.K., on Monday, Aug. 14, 2017. The Docklands Light Railway, a...
An employee works on the maintenance of a Docklands Light Railway train at a depot in Beckon in London, U.K., on Monday, Aug. 14, 2017. The Docklands...
An employee works on the maintenance of a Docklands Light Railway train at a depot in Beckon in London, U.K., on Monday, Aug. 14, 2017. The Docklands...
An employee works on the maintenance of a Docklands Light Railway train at a depot in Beckon in London, U.K., on Monday, Aug. 14, 2017. The Docklands...