Route
Junction number
40
Markerpost
Unknown
Name
Taibach Interchange
Terminus
Not a terminus
Other routes
A4107
Authority
Restricted turns
Full access
Services
No services
M4 J40 Taibach Interchange
Layout and signage
|
Port Talbot A4107 |
A4107 | 
|
A4107 |
Port Talbot A4107 |
Lane configuration
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
Other events
National Speed Limit begins
50mph speed limit begins
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...
Emergency Diversion Routes
Those funny black and yellow symbols are everywhere - and they might just get you back on track one day.
About this page
Published
Last updated
Published
Last updated
