The South Wales Main Line, originally known as the London, Bristol and South Wales Direct Railway or simply as the Bristol and South Wales Direct Railway, is a branch of the Great Western Main Line in Great Britain. It diverges from the core London-Bristol line at Royal Wootton Bassett beyond Swindon, first calling at Bristol Parkway, after which the line continues through the Severn Tunnel into South Wales.
The entrance to the Chipping Sodbury Tunnel with the newly electrified overhead line equipment
Four track railway approaching Cardiff from Newport, prior to electrification
The Great Western Main Line (GWML) is a main line railway in England that runs westwards from London Paddington to Bristol Temple Meads. It connects to other main lines such as those from Reading to Penzance and Swindon to Swansea. The GWML is presently a part of the national rail system managed by Network Rail while the majority of passenger services upon it are provided by the current Great Western Railway franchise.
Maidenhead Railway Bridge carrying the line over the River Thames.
St James Railway Bridge, Bath
Image: Bathpool GWR 158763+158747 Cardiff service
Image: Oxford GWR 165116 leaving for Reading