A4 road (England)

The A4 is a major road in England, portions of which are known as the Great West Road, Bath Road and London Road. It runs from London to Avonmouth, near Bristol. Historically the road was the main route from London to the west of England and formed, after the A40, the second main western artery from London. Much of the route is now paralleled by the M4 motorway, which carries the bulk of long distance traffic in this corridor, leaving the A4 primarily for local traffic.