Route
Junction number
None
Markerpost
28.5 km
Name
Black Cat Roundabout
Type
Roundabout
Terminus
Terminus at top of exit list
Other routes
A1
Authority
Restricted turns
Full access
Services
No services
A421 Black Cat Roundabout
60mph speed limit begins
National Speed Limit beginsWhat's new
Silver bullet
The Silvertown Tunnel is finally open for business. One question remains: what’s it for?
Skid Risk, Accident, Fog
For the first time, we can share pictures of the pioneering experiment that lit up the Worcestershire countryside with enormous signs 61 years ago.
All change
In July 2024, a new Government entered office with a very different set of priorities. What does it mean for a faltering roads programme?
Have you seen...
Harry Yeadon
A civil engineer, working principally in the North West of England, responsible for many of the area's motorways.
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