A1

A1 and A1(M)

Great North Road

London to Edinburgh

The A1 is the UK's longest numbered road and probably its most famous, linking London with Edinburgh and forming the backbone of the road network in mainland Britain.

Routes

A1 and A1(M)

The Great North Road was only ever going to play a walk-on part in London's proposed urban motorway network.

Routes

The wonderful A1 21 December 2017

The A1 is the UK's longest road, but the part within London is easily overlooked. Here's five things you (maybe) didn't know about it.

Routes

What's new

South London's lost motorways

Completing the story of London's epic Ringways, we've just published the Southern Radials, five more motorways that never saw the light of day.

To the north east!

Two new additions to our collection of Opening Booklets take us to Darlington and Middlesbrough.

The ghost junction

The only UK motorway that didn’t connect to ordinary roads finally got its own interchange in 2019. But it's not open, because it still doesn’t touch any ordinary roads.

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C-Roads

A collection of photos of signs confirming the existence of C-roads.