Route
Junction number
8A
Markerpost
42.3 km
Name
Dunton Interchange South
Type
Non-standard interchange
Terminus
Not a terminus
Other routes
M6 Toll
Authority
Restricted turns
Some turns restricted
Services
No services
M42 J8A Dunton Interchange South
Lane configuration
- Lane 1 continues ahead.
- Lane 2 continues ahead.
- Lane 3 exits and does not return.
- Lane 4 exits and does not return.
- Lane 5 exits and does not return.
Other events
Variable Speed Limits apply
- Variable Speed Limits apply
What's new
The road that made no sense
It was the UK's only single-carriageway motorway, and twenty years ago it ceased to exist. This is the story of the strange fascination it held, and of my place in history.
The forever bottleneck, part 2
The second part of the story, where we learn why exactly the M4 gets narrower on the final approach to Europe’s biggest city.
The forever bottleneck, part 1
The M4 into London was one of the UK's earliest and most ambitious motorway projects. It was bold, pioneering... and almost instantly regretted.
Have you seen...
Reigate Tunnel
An unassuming Surrey market town with an amazing claim to fame — the world's first road tunnel.
About this page
Published
Last updated
Published
Last updated
