An employee works in an inspection pit beneath a London Underground... News PhotoAlstom,Business,Corporate Business,District,Economy,England,Environment,Europe,Examining,Finance,Golders Green,Horizontal,London - England,London Underground,Occupation,Quality Control,Railroad Track,Repairing,Shunting Yard,Subway,Subway Train,Train - Vehicle,Transportation,UK,WorkingPhotographer Collection: Bloomberg 2012 BloombergAn employee works in an inspection pit beneath a London Underground Northern Line train at Alstom SA's Traincare Centre in the Golders Green district of London, U.K., on Wednesday, Nov. 21, 2012. Transport for London (TFL), who oversee the U.K. capital's public transport system, issued 300 million pounds ($476 million) of bonds five months ahead of schedule to take advantage of investor demand as it continues its 35 billion-pound transport investment program. Photographer: Chris Ratcliffe/Bloomberg via Getty Images