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 monster seen from below
What might it have been like to stand in one spot and witness the arrival, and the uncertainty, of plans for an urban motorway in West London?
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.
Have you seen...
Abbreviations
How do you describe a road? One way is to use these engineering abbreviations, much loved by the UK's community of road enthusiasts.
About this page
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Published
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