Immediate: Work begins on station and train cleaning in parallel with a station refurbishment and modernisation programme. Contractors will focus on signalling and track 'pinchpoints' to improve immediate Tube performance.
Work also begins on forming asset management plans and ordering new trains and maintenance equipment.
2004: Asset management plans largely complete. Seven extra, but not new, trains in service along Central line bringing 10% improvement in service levels.
2005: New prototype Victoria line trains arrive. Journey times improved by 8%.
2006: New signalling system installed and tested in Waterloo & City line, bringing shorter journeys.
20% service improvement.
2008: Complete new signalling system installed in Victoria line and new control centre completed.
2009: New Jubilee line cars added to 59 trains, and completely new signalling system tested and installed. 22% service improvement.
2010: End of first seven and a half year period. 47 new 8-car trains delivered on Victoria line.
Refurbishment of 149 Bakerloo, Central and Victoria line stations and 97 Jubilee, Northern and Piccadilly line stations completed.
Half of all LUL track refurbished or replaced. All 'grey' structures investigated, many embankments, bridges and tunnel repaired.
2011: Northern line trains signalling replaced.
2014: New signalling system and 92 new trains installed and operational on the Piccadilly line.
2015: 1,362 new train cars in service in District, Circle, Metropolitan, Hammersmith & City and east London lines. All subsurface signalling replaced.
2019: New fleet of Bakerloo trains.