A417 Cowley Roundabout

Layout and signage

Cowley
Brimpsfield
   
    Cowley
Brimpsfield

Lane configuration

LanesLanesLanesLanes

  • Lane 1 continues, with option to exit.
  • Lane 2 exits and does not return.

LanesLanesLanesLanes

  • Lane 1 continues, with option to exit.
  • Lane 2 continues, with option to exit.

In this section

What's new

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.

London, in a new light

It was specially designed never to be noticed. And now it's disappearing, nobody has noticed its absence. It's London's own bespoke street light.

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Have you seen...

M1 under construction

Pictures taken as the first section of the M1 was being built in 1958-9, with all its unique architecture still under construction.

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