Traffic Hubs in Wales

Transport in Cardiff, the capital, and the most populated city of Wales includes road, bus, rail, sea, and air transport hubs. There are a number of factors which have influenced the development of this transport network. It’s one of the major cities in the UK and a centre for government, employment, business, retail, media, culture, higher education, and sports.

The M4

The M4 motorway is what connects Cardiff with the other cities and towns in Britain. In the east, there is Newport, Bath, Bristol, Reading, and Swindon. In the west, there is Swansea, Bridgend, Llanelli, and Carmarthen. It’s part of the E30 too. Cardiff can also be directly accessed through junctions 29 to 34.


The A48 (M) motorway is what connects junction 29 with the city centre with exits for St. Mellons, where it changes to A48, Pontprennau, Rumney, Pentwyn, and Llanederyrn.

Then there’s the A4232 which connects M4 with junction 30 while bypassing the southern parts of the city. From junction 33, you will find exits at Culverhouse Cross, Leckwith, Ferry Road, and Butetown. Eventually the road links with the Southern Way Link.


The A470 is the main road between the north and the south of Wales. It runs from Cardiff all the way to Llandudno. It also has exits at Taff’s Well and Tongwynlais. It’s a major road inside the city and acts as an important link between the heads of the valleys road, north, and mid-Wales.

As with a lot of other cities in Wales, vehicle traffic has caused a lot of congestion issues and as a result of this, bus lanes have been designated to help improve traffic to and from the city centre. The government is also thinking of instituting a variable congestion charge, but only after the public transport network of the city gets an overhaul.