Route
Junction number
29
Markerpost
Unknown
Name
St. James Interchange (west)
Type
Non-standard interchange
Terminus
Not a terminus
Other routes
A726, A737
Authority
Restricted turns
Full access
Services
No services
M8 J29 St. James Interchange (west)
Layout and signage
Glasgow  Paisley A726 Irvine A737 |
A726 |
|
A726 A737 |
Paisley A726 |
Lane configuration
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
Other events
50mph speed limit begins
National Speed Limit begins
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...
EuroRoute
Today you can catch a train to France. You can even put your car on it, and be there in less than an hour. But in the 1980s, Euro Tunnel had competition - including plans to build a motorway across the English Channel.
About this page
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Last updated
Published
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