Route
Junction number
45
Markerpost
Unknown
Name
Ynysforgan Interchange
Terminus
Not a terminus
Other routes
A4067, B4603
Authority
Restricted turns
Full access
Services
No services
M4 J45 Ynysforgan Interchange
Layout and signage
|
Abertawe (G) Swansea (N) Pontardawe A4067 |
A4067 B4603 |
|
A4067 B4603 |
Abertawe (G) Swansea (N) Pontardawe A4067 |
Lane configuration
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
What's new
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?
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.
Have you seen...
Roundabouts
The UK has been driving in circles for a hundred years now, and this humble road junction has become part of British culture. Just what is so special about roundabouts?
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