Route
Junction number
(M4 J32)
Markerpost
0.6 km
Name
Coryton Interchange
Terminus
Terminus at end of exit list
Other routes
M4, A4054
Authority
Restricted turns
Full access
Services
No services
A470 Coryton Interchange
Layout and signage
| M4 A4054 |
|
A4054 M4 |
Casnewydd — Newport Pen-y-bont — Bridgend M4 Link Caerdydd — Cardiff A470 |
Lane configuration
- Lane 1 continues ahead.
- Lane 2 continues ahead.
- Lane 1 exits and does not return.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
Other events
National Speed Limit begins
Traffic signals
40mph speed limit begins- Traffic signals
What's new
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.
Silver bullet
The Silvertown Tunnel is finally open for business. One question remains: what’s it for?
Have you seen...
Junction Three
The M621 has one junction where everything leaves the motorway and heads for the city, and a very bizarre junction it is too.
About this page
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