12
207.7 km
Millbank Interchange
Not a terminus
A70, B7078
Some turns restricted
Service area here
Happendon
Cairn Lodge
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Edinburgh Ayr A70  Happendon
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A70 |
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A70 |
What might it have been like to stand in one spot and witness the arrival, and the uncertainty, of plans for an urban motorway in West London?
It was the UK's only single-carriageway motorway, and twenty years ago it ceased to exist. This is the story of the strange fascination it held, and of my place in history.
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 first motorway opened in 1958. The first road restricted to motor traffic, on the other hand, opened in 1923...
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Last updated
