Latest figures show Tube operated more than 98 per cent of journeys

The figures, for Periods 1 and 2 of the current year (1 April to 26 April and 27 April to 24 May), follow 2013/14's record performance, when LU carried 1.265bn passengers. Passenger numbers are now up by a third over the last ten years. More than 5.5m kilometres were operated during Period 1 with network peak and off peak scheduled kilometres operated at 97.6 per cent and 98.5 per cent respectively. In period 2, excluding the two days of industrial action by RMT, the Northern line matched the record high of 99.7 per cent of scheduled kilometres operated, while Victoria line performance was at its highest level for over a year with 98.7 per cent of scheduled kilometres operated.

Overall delays to Tube customers continue to be reduced as LU remains on track to meet the Mayor's commitment to reduce delays by a further 30 per cent by 2015. Delays to customers have been reduced by 54 per cent in the financial year 2013/4 compared with 2003/4, and 34 per cent since 2008/9.

Phil Hufton, LU's Chief Operating Officer, said: "Demand for Tube services continues, and we've recently increased services on the Victoria, Northern, Jubilee and Piccadilly lines to cope with that level d.

"These service improvements are part of the continuing modernisation of the Underground, with major stations, trains, track and signalling being modernised or replaced to provide more capacity for the growth of London"

The continuing trend of long-term improvement on the Tube follows the success of the London Underground Reliability Programme, introduced in 2011. London Underground continues to develop and implement more reliable solutions to meet the Mayor's commitment of reducing delays on the network.