None
33.8 km
Clacket Lane Services
Service area only
Not a terminus
None
Full access
Service area here
Clacket Lane
Roadchef
 Clacket Lane
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Clacket Lane
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Variable Speed Limits apply Variable Speed Limits applyLondon’s notorious orbital motorway turns 40 years old today. Where did it come from - and why the number “25”?
When a road is closed, why isn't the diversion route just the quickest way past the closure?
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.
It crosses cattle grids and untamed moorland, it climbs 1-in-4 hills and plummets through hairpin bends, it runs single-track through woodland and historic villages. It's rugged and beautiful. Is it really the A39?
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