The A483 is a major road in the United Kingdom

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

, running from Swansea

Swansea

Swansea is a coastal city and county in Wales. Swansea is in the historic county boundaries of Glamorgan. Situated on the sandy South West Wales coast, the county area includes the Gower Peninsula and the Lliw uplands...

 in Wales

Wales

Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...

 to Chester

Chester

Chester is a city in Cheshire, England. Lying on the River Dee, close to the border with Wales, it is home to 77,040 inhabitants, and is the largest and most populous settlement of the wider unitary authority area of Cheshire West and Chester, which had a population of 328,100 according to the...

 in England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

, although the official title is the Swansea to Manchester Trunk Road.
From the M4 motorway

M4 motorway

The M4 motorway links London with South Wales. It is part of the unsigned European route E30. Other major places directly accessible from M4 junctions are Reading, Swindon, Bristol, Newport, Cardiff and Swansea...

 Junction 42, just east of Swansea, it travels west along the Fabian way towards Swansea where it turns to a northwesterly direction towards the M4 motorway junction 47 at Penllergaer

Penllergaer

Penllergaer is a village in the City and County of Swansea, Wales, UK, falling within the Penllergaer ward. Penllergaer is situated about 6 miles north west of Swansea city centre, near the M4 Motorway at Junction 47.-Features:...

 after which the route is multiplexed with the A48

A48 road

The A48 is a major trunk road in Great Britain. It runs from the A40 at Highnam west of Gloucester to the A40 at Carmarthen. Before the construction of the M4 motorway and the first Severn Bridge in the mid 1960s it was the principal route into South Wales. For most of its journey through Wales,...

 along Swansea Road, Bryntirion Road, Bolgoed Road to Pontarddulais

Pontarddulais

Pontarddulais is a community and town in the City and County of Swansea, Wales. It is situated north west of Swansea city centre. It falls within the Pontarddulais ward.-Overview:...

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After Pontarddulais, the route continues along Heol Fforest and Carmarthen Road.