Chronology Maps

1976 1977 1978

Click a section name to see full details and a map.

Completed Route Name Start End Original number
M90 Glenfarg Bypass J8 Arlary Arngask Road
M25 Darenth - Swanley J2 Darenth J3 Swanley
M11 Redbridge - South Harlow J3 Redbridge J7 Hastingwood
M4 Pontarddulais Bypass J46 Llangyfelach J49 Pont Abraham
M5 Exminster Section J30 Sandygate J31 Pearce’s Hill
M69 Coventry Section M6 J2 Ansty J1 Stretton Baskerville
M20 Swanley - West Kingsdown J1 Swanley London Road
M18 West Moor - Thorne J4 West Moor Thorne Road
M180 Brigg Bypass Castlethorpe J5 Barnetby Top
M58 Skelmersdale and Up Holland Bypass J4 Glenburn Road J6 Orrell A506
M4 Tredegar Park - St Mellons J28 Tredegar Park J29 Castleton
A48(M) Tredegar Park - St Mellons J29 Castleton J29A St Mellons
M90 Bridge of Earn Bypass J9 Muirmont J10 Craigend
M4 Pyle Bypass J37 Pyle J39 Groes
M4 Coryton - Pencoed J32 Coryton J35 Pencoed

In this section

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A century of motorways

It's 100 years since the opening of the world's first motorway, the Autostrada from Milan to the Lakes.

Schrödinger’s speed limit

In 2022, Manchester City Council say they reduced the speed limit on the Mancunian Way to 30mph. But it’s not clear if they did. It’s not even clear if they can.

Sorry, wrong number

Road numbering is a system with clear rules. What happens when the people responsible for numbering roads don't follow them?

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The Heads of the Valleys

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