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22 November 2010, 15:33 | Updated: 22 November 2010, 15:35
Tube services are going to be disrupted every weekend until the London Olympics.
That's according to figures the Evening Standard's got hold of, which show that work on things like the track and signals would affect many tube lines every weekend until July 2012.
The statistics also show that the last time a full weekend service ran was in December 2007.
TfL says the situation is not as bad as it sounds as any station closure constitutes a "reduced service".
Transport bosses also insist the work will vastly improve the capacity and frequency of services.