Route
Junction number
4
Markerpost
52.5 km
Name
Frimley Interchange
Type
Non-standard interchange
Terminus
Not a terminus
Other routes
A331
Authority
Restricted turns
Full access
Services
No services
M3 J4 Frimley Interchange
Layout and signage
|
Guildford Farnham Camberley Farnborough Aldershot A331 |
A331 | 
|
A331 (A325) |
Guildford Farnham Camberley Farnborough Aldershot A331 |
Lane configuration
- Lane 1 exits and returns after the junction.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
- Lane 1 exits and returns after the junction.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
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...
Alley by gaslight
Some of Central London's quieter streets are still, surprisingly, lit by old and rather beautiful gas lanterns. Here are a few, by day and by night.
About this page
Published
Last updated
Published
Last updated
