Images released of HS2's Old Oak Common hub
An aerial view of the Old Oak Common hub and a glimpse of the Chilterns tunnel entrance are among images released by the builders of HS2.
Progress on the high-speed London to Birmingham link, which cuts through part of West London before heading north under the Chilterns, is being documented to mark the turn of the year.
Planning approval was given this year to the new inter-change at Old Oak Common, which will link with the new Elizabethan Line across London.
The pictures include a view of the huge South Portal site near the M25, from where tunnel boring machines will dig north under the Chilterns.