London Underground commuters can expect travel disruption every weekend until the London 2012 Olympics, it has emerged.
Engineering works caused the entire Circle Line to be suspended last weekend, and more services are scheduled to be withdrawn while maintenance work is completed.
Figures show that the last time the London Underground ran a full weekend service was in December 2007.
The Evening Standard newspaper has obtained figures showing that track, signal and construction work will close or partly-close many Tube lines every weekend until just before the Olympics, which get under way on July 27 2012.
The figures were published following the frustration caused by weeks of delays, with the London Underground blaming signal, train and power failures.