Chronology Maps

1958 1959 1960

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

Completed Route Name Start End Original number Downgraded
M4 Chiswick Flyover J1 Chiswick Great West Road A4
M1 London-Yorkshire Motorway J5 Berrygrove J18 Crick
M45 Dunchurch Spur M1 J17 Kilsby J1 Dunchurch
A414 St Albans Bypass J1 Park Street M1 J7 Breakspears M10

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.

Share this page

Have you seen...

Pedestrian Crossings

From Zebra to Pelican and beyond: the comprehensive history of the development of the humble pedestrian crossing.