Route
Junction number
M4 J22
Markerpost
0.0 km
Name
Pilning Interchange
Terminus
Terminus at top of exit list
Other routes
M4
Authority
Restricted turns
Full access
Services
No services
M49 (M4 J22) Pilning Interchange
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...
London Congestion Charge
One of the world's biggest and most controversial schemes to manage traffic by charging for roadspace. You can drive in to London if you like, guv, but it'll cost you.
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