43016 hurries along the up fast line of the Great Western Main Line for Paddington.
43016 arriving at Westbury.
A diverted First Great Western HST passes Portskewett north of Severn Tunnel Jn, diverted because of safety checks being carried out in the Severn Tunnel itself.
The 1600 Penzance to London Paddington crosses Dockyard Viaduct on the approaches to Plymouth
