Park Record Media Center

St Paul's Cathedral is covered in mist as people and buses cross Waterloo Bridge during the second day of a 48 hour workers strike partially closing the London Underground train network in London, Wednesday, April 30, 2014. Members of the Rail, Maritime and Transport Union went on strike over management plans to close all ticket offices on the subway network, known as the Tube, which will result in around 750 job losses from the Underground's staff of 18,000. A further 72 hour strike is planned starting May 5. (AP Photo/Sang Tan) ( Britain Subway Strike )

Commuters walk across London Bridge in central London, on April 30, 2014, as a strike by underground train staff affected a second day's rush-hour. The strike action was called by the RMT union in protest at plans to close all ticket offices across the network, which it says will jeopardise hundreds of jobs and safety standards. (CARL COURT/AFP/Getty Images) ( 529363349 )

A packed train arrives at Westminster underground station during the second day of a 48 hour workers strike partially closing the London Underground train network in London, Wednesday, April 30, 2014. Members of the Rail, Maritime and Transport Union went on strike over management plans to close all ticket offices on the subway network, known as the Tube, which will result in around 750 job losses from the Underground's staff of 18,000. A further 72 hour strike is planned starting May 5. (AP Photo/Sang Tan) ( Britain Subway Strike )

Cyclists wait for a traffic light to change during a 48 hour workers strike partially closing the London Underground train network in London, Tuesday, April 29, 2014. Members of the Rail, Maritime and Transport Union are going on strike over management plans to close all ticket offices on the subway network, known as the Tube, which will result in around 750 job losses from the Underground's staff of 18,000. A further 72 hour strike is planned starting May 5. (AP Photo/Matt Dunham) ( Britain Subway Strike )

Commuters travel on the Northern Line of the London Underground which is running a limited service due to industrial action on April 29, 2014 in London, England. At 9pm last night members of the Rail, Maritime and Transport (RMT) Union commenced a 48 hour strike on the London Underground over plans to close all ticket offices with the loss of nearly 1000 jobs. (Photo by Oli Scarff/Getty Images) ( 487280943 )

Commuters prepare to travel on the District Line of the London Underground which is running a limited service due to industrial action on April 30, 2014 in London, England. At 9pm on April 28, 2014 members of the Rail, Maritime and Transport (RMT) Union commenced a 48 hour strike on the London Underground over plans to close all ticket offices with the loss of nearly 1000 jobs. (Photo by Oli Scarff/Getty Images) ( 487410781 )

Gates bar access to King's Cross underground station, which was closed to commuters before 7am due to industrial action, on April 29, 2014 in London, England. At 9pm last night members of the Rail, Maritime and Transport (RMT) Union commenced a 48 hour strike on the London Underground over plans to close all ticket offices with the loss of nearly 1000 jobs. (Photo by Oli Scarff/Getty Images) ( 487281139 )

People walk across one of the two pedestrian Golden Jubilee Bridges during a 48 hour workers strike partially closing the London Underground train network in London, Tuesday, April 29, 2014. Members of the Rail, Maritime and Transport Union are going on strike over management plans to close all ticket offices on the subway network, known as the Tube, which will result in around 750 job losses from the Underground's staff of 18,000. A further 72 hour strike is planned starting May 5. (AP Photo/Matt Dunham) ( Britain Subway Strike )

A Transport for London (TFL) worker (R) advises commuters during the morning rush hour at Victoria station in London, on April 29, 2014, as a planned 48 hour underground train strike came into effect late Monday night. Workers on London's Underground train system began a 48-hour strike at 9:00 pm (2000 GMT) on Monday, threatening chaos for commuters and hitting football supporters attending Arsenal's match with Newcastle. (LEON NEAL/AFP/Getty Images) ( 529335357 )

Commuters form long queues for buses outside Waterloo Station in London, on April 29, 2014, as a planned 48 hour underground train strike came into effect late Monday night. Workers on London's Underground train system began a 48-hour strike at 9:00 pm (2000 GMT) on Monday, threatening chaos for commuters and hitting football supporters attending Arsenal's match with Newcastle. (CARL COURT/AFP/Getty Images) ( 529336766 )

People walk across Hungerford pedestrian bridge during the second day of a 48 hour workers strike partially closing the London Underground train network in London, Wednesday, April 30, 2014. Members of the Rail, Maritime and Transport Union went on strike over management plans to close all ticket offices on the subway network, known as the Tube, which will result in around 750 job losses from the Underground's staff of 18,000. A further 72 hour strike is planned starting May 5. (AP Photo/Sang Tan) ( Britain Subway Strike )