Route
Junction number
None
Markerpost
18.6 km
Name
Abercynon Roundabout
Type
Roundabout
Terminus
Not a terminus
Other routes
A472, A4054, A4059
Authority
Restricted turns
Full access
Services
No services
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
Red, white and blue
Kent County Council is run by eurosceptic nationalists. So why are they putting EU flags on their road signs?
The sunlit uplands
On Saturday 31 May something historic happened. The Heads of the Valleys Road was finally complete.
Grand openings
Our much-loved Opening Booklets section has two new publications for you to explore, and we’re making some overdue changes to make them easier to find and easier to read.
Have you seen...
Linnyshaw Moss
The UK's widest motorway is not where you might expect to find it — in fact, it's on the unassuming M61 near Manchester. This gallery offers an overhead view of one of the UK's most unique and spacious interchanges.
About this page
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