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

Silver bullet

The Silvertown Tunnel is finally open for business. One question remains: what’s it for?

Skid Risk, Accident, Fog

For the first time, we can share pictures of the pioneering experiment that lit up the Worcestershire countryside with enormous signs 61 years ago.

All change

In July 2024, a new Government entered office with a very different set of priorities. What does it mean for a faltering roads programme?

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Have you seen...

To the Limit

Speed limits are more emotive and divisive than almost anything else about the road network. How do you sort the fact from the opinion? And how did we end up with the speed limits we have?