A1(M)

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

Opening booklets

In days gone by, new roads were often celebrated with a grand opening ceremony and the issue of a commemorative booklet heralding the exciting new highway. You'll find some of them here, complete with a glimpse of all that empty tarmac and a healthy dose of modernist optimism.

Histories

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

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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Have you seen...

London's Forgotten Arterial Roads

The 1920s and 30s saw a huge roadbuilding boom in London's suburbs. Some of those roads are incredibly well known, but here are five Arterial Roads that have been almost completely forgotten.