Route
Junction number
6
Markerpost
39.5 km
Name
The Clock Interchange
Type
Non-standard interchange
Terminus
Not a terminus
Other routes
A1000, B197, B656
Authority
Restricted turns
Full access
Services
No services
A1(M) J6 The Clock Interchange
Layout and signage
|
Welwyn Welwyn Garden City A1000 |
B656 B197 |
|
B197 A1000 |
Welwyn Welwyn Garden City A1000 |
Lane configuration
- Lane 1 exits and does not return.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
- Lane 1 has option to exit and splits to create a new lane.
- Lane 2 continues ahead.
What's new
Where did the M25 come from?
London’s notorious orbital motorway turns 40 years old today. Where did it come from - and why the number “25”?
The long way round
When a road is closed, why isn't the diversion route just the quickest way past the closure?
Signs and sensibility
The one great attempt to make London’s streets logical - and how one retired chauffeur’s favourite routes changed the way you get around the capital.
Have you seen...
Almondsbury Interchange
The UK's first four-level interchange opened in 1966. Relive some of the wonder and excitement of this icon of the motorway era with the book published to mark its completion.
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