A470 Coryton Interchange

Layout and signage

  M4


A4054
    A4054

M4





  Casnewydd — Newport
Pen-y-bont — Bridgend
M4 Link
Caerdydd — Cardiff
A470

Lane configuration

LanesLanesLanesLanes

  • Lane 1 continues ahead.
  • Lane 2 continues ahead.

LanesLanesLanesLanesLanes

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

Other events

  • Signs National Speed Limit begins
  • Signs Traffic signals
  • Signs 40mph speed limit begins
  • 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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