First look inside Crossrail tunnel in central London
BBC London has been given access to the new Crossrail and Tube tunnels that have been dug beneath Tottenham Court Road in central London.
The work has been causing significant disruption in the area. Bus routes have been diverted and Northern Line trains will not stop at Tottenham Court Road between April and November 2011.
However, when complete the new Tottenham Court Road station will have larger ticket halls, new entrances and there will be direct links between the Tube and Crossrail.