Crossrail's £15bn Elizabeth Line is prompting yet more changes to the capital's iconic Tube map.
Transport for London's (TfL) newest version of the Underground map shows how the capital's transport will look by 2019 once the massive project is fully complete.
May 2015: TfL Rail services opened between Liverpool Street Main Line and Shenfield.
May 2017: The first new train enters passenger service.
May 2018: TfL Rail service opens between Paddington (National Rail) and Heathrow Terminal 4, replacing the existing Heathrow Connect service and part of the Great Western inner suburban service.
December 2018: The Elizabeth line opens between Paddington and Abbey Wood.
May 2019: The Elizabeth line extends from Shenfield to Paddington.
December 2019: The Elizabeth line is fully open, extending to Reading and Heathrow Terminal 4.
In May next year a fleet of 66 Class 345 trains built by Bombardier in Derby will begin operating on the route.
Crossrail Under Construction