Route
Junction number
28
Markerpost
Unknown
Name
Tredegar Park Interchange
Type
Non-standard interchange
Terminus
Not a terminus
Other routes
A48, A467
Authority
Restricted turns
Full access
Services
No services
M4 J28 Tredegar Park Interchange
Layout and signage
|
Casnewydd Newport A48 Risca Brynmawr A467 |
A467 | 
|
A48 A48 |
Casnewydd Newport A48 Risca Brynmawr A467 |
Lane configuration
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
Other events
50mph speed limit begins
National 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...
Queensway Tunnel
The engineering marvel of its day, much altered and maligned ever since: this is the original Mersey Tunnel in all its glory.
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