Route
Junction number
None
Markerpost
66.2 km
Name
Carland Cross Interchange
Type
Terminus
Not a terminus
Other routes
A39, B3285
Authority
Restricted turns
Full access
Services
No services
A30 Carland Cross Interchange
Layout and signage
|
Truro A39 |
B3288 (B3285) |
|
A39 |
Truro A39 Perranporth (B3285) Zelah B3288 |
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 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...
Clear and legible
A century ago, one short memorandum issued by the Ministry of Transport laid the groundwork for a system of standardised, uniform road signs and a great deal more.
About this page
Published
Last updated
Published
Last updated
