Snap of two of the CrossRail Tunnel Boring Machines parked between Paddington and Royal Oak. The TBMs will bore the tunnels for London's new CrossRail line. They are huge machines, dwarfing the concrete mixer lorry in front; behind the front plate there is a production line to remove the spoil and line the tunnel. Crossrail will link Paddington with Canary Wharf via Farringdon and is due to open for service in 2017. Crossrail's 21km of new twin-bore tunnels are first major new railway tunnels under London since the Jubilee Line.