Route
Junction number
None
Markerpost
235.8 km
Name
St Mellons Interchange
Type
Terminus
Terminus at end of exit list
Other routes
A48
Authority
Restricted turns
Some turns restricted
Services
No services
A48(M) St Mellons Interchange
Layout and signage
|
Llaneirwg St Mellons A48 |
|
A48 |
Caerdydd Cardiff A48 |
Lane configuration
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
- Lane 1 continues ahead.
- Lane 2 continues ahead.
Other events
Start of motorway regulations
End of motorway regulations
What's new
Where did the M25 come from?
London’s notorious orbital motorway turns 40 years old today. Where did it come from - and why the number “25”?
The long way round
When a road is closed, why isn't the diversion route just the quickest way past the closure?
Signs and sensibility
The one great attempt to make London’s streets logical - and how one retired chauffeur’s favourite routes changed the way you get around the capital.
Have you seen...
M1 Architecture
The most unique motorway in Britain owes its identity to its fifties architecture. Much of it is in danger of being removed or irreperably altered. This page documents it in detail.
About this page
Published
Last updated
Published
Last updated
