Route
Junction number
42
Markerpost
141.1 km
Name
Westley Interchange
Terminus
Not a terminus
Other routes
A1302, B1106
Authority
Restricted turns
Full access
Services
No services
A14 J42 Westley Interchange
Layout and signage
|
Fornham B1106 |
A1302 | 
|
B1106 |
Bury St Edmunds A1302 Fornham B1106 |
Lane configuration
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
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...
Roundabouts
The UK has been driving in circles for a hundred years now, and this humble road junction has become part of British culture. Just what is so special about roundabouts?
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