Crossrail is due to open in 2018
Images of the new Tottenham Court Road Station have been released as work on the Crossrail project is due to begin.
The central London Tube station is being redeveloped and a new Crossrail station is being built.
The £16bn Crossrail scheme will connect Maidenhead in Berkshire to Shenfield in Essex via Heathrow airport and London.
Transport for London has warned of delays as work, due to begin on 19 January, will mean changes to bus routes and road closures from Saturday.
At present 150,000 people use Tottenham Court Road with 200,000 commuters expected by the time Crossrail starts running in 2018.
The £1bn redevelopment will mean Tottenham Court Road will become both an Underground station and a Crossrail station.
There will be an expanded ticket hall as well as new entrances constructed at Dean Street and Charing Cross Road but buildings around the site will have to be demolished.
The junction of Tottenham Court Road and Oxford Street is also being revamped which will add to the disruption to traffic.
Roads have been closed and bus routes diverted, which will remain in place for the seven-year duration of the construction work.
Transport for London's Richard Parry said: "While the entire Crossrail project will be the biggest construction project in Europe, no one should underestimate the scale and extent of the work that will take place at Tottenham Court Road.
"This will be one of the biggest station redevelopment projects ever undertaken in central London."
Preparatory work will begin on 19 January to allow construction to begin in the autumn.