A406 Hobart Corner

Layout and signage

Southgate
Wood Green
A109
  A109

    A109

  New Southgate
Wood Green
A109

Lane configuration

LanesLanesLanesLanes

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

LanesLanesLanesLanes

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

Other events

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

In this section

What's new

The monster seen from below

What might it have been like to stand in one spot and witness the arrival, and the uncertainty, of plans for an urban motorway in West London?

The road that made no sense

It was the UK's only single-carriageway motorway, and twenty years ago it ceased to exist. This is the story of the strange fascination it held, and of my place in history.

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.

Share this page

Have you seen...

The Magic Roundabout

Officially the seventh most frightening thing on the road network - but actually it might just be the most efficient junction ever designed.

About this page

Published

Last updated