A30 road

A30
Route information
Length	284 mi (457 km)
Major junctions
East end	Hounslow, London (51°28′30″N 0°23′46″W / 51.475°N 0.396°W / 51.475; -0.396)
Major intersections	A4 A312 M25 Junction 13 A303 A34 A338 A36 A350 A303 A35 M5 Junctions 29 and 31 A38 A39
West end	Land's End (50°03′58″N 5°42′04″W / 50.066°N 5.701°W / 50.066; -5.701)
Location
Country	United Kingdom
Primary destinations	Heathrow Airport Staines-upon-Thames Basingstoke Salisbury Shaftesbury Yeovil Honiton Exeter Okehampton Launceston Bodmin Newquay Truro Redruth Penzance
Road network
Roads in the United Kingdom Motorways A and B road zones
← A29 → A31

The A30 is a major road in England, running 284 miles (457 km) WSW from London to Land's End.

The road has been a principal axis in Britain from the 17th century to early 19th century, as a major coaching route and post road.^[1][2] It used to provide the fastest route from London to the South West by land until a century before roads were numbered; nowadays much of this function is performed by the M3 (including A316) and A303 roads. The road has kept its principal status in the west from Honiton, Devon to Land's End where it is mainly dual carriageway and retains trunk road status.