Motorway Database

Detailed information on every motorway and A-road expressway in mainland Britain - its length and route, its history, construction dates, and of course a detailed strip-map of the whole road. You can also find Chronology Maps showing the development of the motorway network over time, and you can search more than 2,000 individual junctions and other features of the road network.

M1

London-Yorkshire Motorway

London to Hook Moor

M2 & A2

Medway Towns Bypass

London to Lydden

M3

London to Southampton

M4

London to Pont Abraham

M5

Birmingham to Exeter

M6

Rugby to Gretna

M6 Toll

Midland Expressway

Coleshill to Cannock

M8

Edinburgh to Greenock

M9

Edinburgh to Dunblane

In this section

What's new

The forever bottleneck, part 2

The second part of the story, where we learn why exactly the M4 gets narrower on the final approach to Europe’s biggest city.

The forever bottleneck, part 1

The M4 into London was one of the UK's earliest and most ambitious motorway projects. It was bold, pioneering... and almost instantly regretted.

Hello, here's my ridiculous side project

An introduction to what I write, and why I write it, and where my strange new road sign simulator fits in to all this.

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Have you seen...

Mickleham Bends

Once it was one of the UK's most dangerous roads — just what is so special about a bit of dual carriageway in Surrey?