A30 road
The A30 is a major road in England, running south-west from London to Land's End. It is 284 miles (457 km) long.
The A30 used to provide the most direct route from London to the South West; nowadays much of this function is performed by the M3 motorway and the A303 road. However, the section from Honiton to Land's End retains trunk road status, and is a dual carriageway for most of its length.
Route
London to Honiton
The A30 begins at Henlys Roundabout, a junction with the A4 near Hounslow. It runs along the south side of Heathrow Airport, then past Ashford and Staines-upon-Thames, before reaching the M25 motorway. This first section is entirely dual carriageway.
After crossing the M25, the A30 runs parallel to the M3 all the way to Basingstoke, bypassing Egham and passing through Bagshot, Camberley, Hartley Wintney and Hook.
Just west of Basingstoke, at junction 8 of the M3, the A303 begins. The A30 runs parallel to this road all the way to just north-east of Honiton, passing through Stockbridge, Salisbury, Shaftesbury, Sherborne, Yeovil, Crewkerne and Chard.