The eastbound carriageway continued beyond North Street to York Road. The opening date is per The Gazette, but this is uncertain - local press mention it opening on an unspecified date in May 1970.
Road scheme and chronology data is courtesy SABRE (where much of it was gathered by member Ross Spur), with additional data from the UK Motorway Archive, the Scottish Roads Archive and the Northern Ireland Roads Site.
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.
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What happens when there's a big accident on a trunk route? Who picks up the pieces, and why does it take so long?
