There will be a series of charity fundraising days from the 12th May to mark Jubilee Line turning 30.
Boris Johnson said "The Jubilee Line and everyone connected to it over the last thirty years deserve plaudits for the huge amount of work they have put in to getting Londoners around our city as quickly and as safely as possible. However it is paramount that during its anniversary year the line receives the massive upgrade that is underway. I appreciate the patience regular passengers have shown as this huge investment takes place. They should be assured that by the end of the year the Jubilee Line will be in a position to offer even better services."