Junction number
None
Markerpost
Unknown
Name
Unknown
Other routes
None
A470 Abercynon Roundabout
Layout and signage
|
Aberpennar Mountain Ash Aberdâr Aberdare A4059 Ystrad Mynach A472 Aberfan (A4054) |
A4059 | 
|
A4054 A472 A4054 |
Ystrad Mynach A472 Aberfan (A4054) Aberdâr Aberdare A4059 |
Lane configuration
- Lane 1 continues, with option to exit.
- Lane 2 continues, with option to exit.
- Lane 1 continues, with option to exit.
- Lane 2 continues, with option to exit.
Other events
Traffic signals
50mph speed limit begins
- Traffic signals
National Speed Limit begins
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?
Have you seen...
Sir James Drake
County Surveyor and Bridgemaster for Lancashire in the 1950s and 60s, Drake was instrumental in the motorway revolution.
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