A406 Brent Cross Flyover

Layout and signage

Central London
Kilburn
Aylesbury
Hatfield (A1 Link)
A41
  A41     A41
(A1)
  The NORTH
Aylesbury
C. London (West End)
Brent Cross
A41

Lane configuration

LanesLanesLanesLanesLanesLanesLanes

  • Lane 1 is gained from the entry sliproad.
  • Lane 2 is gained from the entry sliproad.
  • Lane 3 continues, with option to exit.
  • Lane 4 continues ahead.
  • Lane 5 continues ahead.

LanesLanesLanesLanesLanesLanesLanes

  • Lane 1 exits and does not return.
  • Lane 2 exits and does not return.
  • Lane 3 continues ahead.
  • Lane 4 continues ahead.
  • Lane 5 continues ahead.

In this section

What's new

A bridge under troubled bridges

A bridge that was ruined by another bridge, and a type of highway planning beyond any of the UK’s worst nightmares.

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.

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Abbreviations

How do you describe a road? One way is to use these engineering abbreviations, much loved by the UK's community of road enthusiasts.

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