A406 Clockhouse Junction

Layout and signage

Palmers Green
Wood Green
Hornsey
A105
  A105     A105   Palmers Green
Wood Green
Hornsey
A105

Lane configuration

LanesLanesLanesLanesLanes
LanesLanesLanesLanesLanes

  • Lane 1 continues, with option to exit.
  • Lane 2 continues ahead.
  • Lane 3 continues, with option to exit.
  • Then further along:
  • Lane 1 continues ahead.
  • Lane 2 continues ahead.
  • Lane 3 terminates.

LanesLanesLanesLanes
LanesLanesLanesLanesLanes

  • Lane 1 continues ahead.
  • Lane 2 splits to create a new lane.
  • Then further along:
  • Lane 1 continues, with option to exit.
  • Lane 2 continues ahead.
  • Lane 3 continues, with option to exit.

Other events

  • Signs Traffic signals
  • Signs 30mph speed limit begins
  • Signs Traffic signals
  • Signs 40mph speed limit begins

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...

Daniel "Swampy" Hooper

Britain's most famous anti-road protester, who shot to fame in the mid-1990s and came to represent the whole environmental movement.

About this page

Published

Last updated