Route
Junction number
None
Markerpost
46.2 km
Name
Braywick Roundabout
Type
Roundabout
Terminus
Terminus at top of exit list
Other routes
A308, A330
Authority
Restricted turns
Full access
Services
No services
A308(M) Braywick Roundabout
Layout and signage
|
Maidenhead A308 Windsor A308 Ascot A330 Bracknell (A3095) |
A308 |
|
A308 A330 (A3095) |
N/A |
Lane configuration
- Lane 1 exits and does not return.
- Lane 2 exits and does not return.
- Lane 1 continues ahead.
- Lane 2 continues ahead.
Other events
End of motorway regulations
Start of motorway regulations
What's new
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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.
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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...
Operation Stack
If there's trouble crossing the Channel, you'll see the lorries queuing on the M20. What is Operation Stack? Why does it cause so much trouble? And why, more than twenty years after it started, are we still using it?
About this page
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