A470

A470

Merthyr Tydfil to Cardiff

Think of the busiest roads in Wales and you will inevitably think of the M4 and the A55. Often overlooked is the A470 between Cardiff and Merthyr Tydfil, a remarkable road that is, by any meaningful measure, an urban motorway.

Routes

A470 End to End

The road that connects Wales together, but which nobody really uses... All five hours of the A470, from Llandudno to Cardiff, are here.

Routes

What's new

Gifts for road lovers

Keep being asked what you want for Christmas? No problem: here’s our pick of road-related Christmas treats for 2021.

Go west! New Ringways pages are here

A new set of Ringways pages are now online, looking at unbuilt motorways and road projects west of London.

No smoke without ire

London's Ultra Low Emission Zone has just expanded to cover the whole inner city, and across the UK, other cities are implementing their own Clean Air Zones. Is this the future?

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Have you seen...

The Improbable A39

It crosses cattle grids and untamed moorland, it climbs 1-in-4 hills and plummets through hairpin bends, it runs single-track through woodland and historic villages. It's rugged and beautiful. Is it really the A39?