A1(M)

Markerposts are meant to start at one end of a road and count the kilometres to the other. But things are never that simple.

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

The new A1(M) between Leeming and Barton in North Yorkshire is now, finally, nearing completion. It's been a long wait!

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.

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.

England's motorways are littered with the remnants of service areas that were never built. Here's ten of our favourites.