A406 Henly's Corner (west)

Layout and signage

The NORTH
Watford
Mill Hill
Hendon
A1 Link (M1 Link)
      A1
(M1)
  The NORTH
Watford
Mill Hill
Hendon
A1 Link

Lane configuration

LanesLanesLanesLanesLanesLanes

  • Lane 1 continues ahead.
  • Lane 2 splits to create a new lane.
  • Lane 3 exits and does not return.
  • Lane 4 exits and does not return.

LanesLanesLanesLanesLanesLanes

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

Other events

  • Signs Traffic signals
  • Signs Traffic signals

In this section

What's new

Signs and sensibility

The one great attempt to make London’s streets logical - and how one retired chauffeur’s favourite routes changed the way you get around the capital.

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?

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Have you seen...

M25 Orbital Motorway

The M25 is either one of the greatest transport achievements of the 20th century or one of Britain's largest planning failures, depending on which way you look at it. This booklet takes the former view, celebrating the completion of the circuit in 1986.

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