Plans to boost tube performance for the Olympics and beyond are on track, according to recent figures published by London Underground.

The figures for the period from November 13 to December 10, confirm that the four-week period was the third in succession that customer demand hit new levels, with 95.8m passenger journeys - up by 1.2m from the record established in the previous period.

Delays were reduced by 8,900 from the previous period, and have been cut across every line compared to the same period last year. Annual trends, which show a more robust picture of performance by balancing out short-term fluctuations, also show an improving trend. Across the network lost customers hours have been reduced by almost 40 per cent since 2007/08.

More work is under way to further boost reliability and provide a lasting legacy for Londoners.

Mike Brown, Managing Director London Underground, said: “This is a crucial year for London, and every one of my staff is focused on supporting a fantastic 2012 Games and keeping all Londoners moving. We have completed the huge infrastructure improvements needed to support the events and to give London a world-class transport network for years to come, and we are working around the clock to further improve reliability on the network.

“The latest figures show that reliability continues to improve, and we are confident that by the time of the Games further significant improvements will have been made - providing a lasting legacy for London. We are leaving no stone unturned – introducing new technology and working practices and replacing train doors, wheel sets and other components to ensure we offer the very best possible performance day in and day out.”

Over the last six months work has also been carried out on the Jubilee line which is key to a successful Games.