Route
Junction number
M1 J13
Markerpost
0.0 km
Name
Ridgmont Interchange
Type
Non-standard interchange
Terminus
Terminus at end of exit list
Other routes
M1, A507
Authority
Restricted turns
Full access
Services
No services
A421 (M1 J13) Ridgmont Interchange
Layout and signage
Lane configuration
- Lane 1 continues ahead.
- Lane 2 continues ahead.
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
- Then further along:
- Lane 1 terminates.
- Lane 2 terminates.
What's new
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.
Hello, here's my ridiculous side project
An introduction to what I write, and why I write it, and where my strange new road sign simulator fits in to all this.
Have you seen...
Forth Bridges
There's plenty of pictures of the three magnificent bridges over the Firth of Forth at Queensferry. But not many are taken from beneath.
About this page
Published
Last updated
Published
Last updated
