Route
Junction number
None
Markerpost
Unknown
Name
Hanger Lane Gyratory
Terminus
Terminus at top of exit list
Other routes
A40, A4005
Authority
Restricted turns
Full access
Services
No services
A406 Hanger Lane Gyratory
Layout and signage
Lane configuration
- Lane 1 continues, with option to exit.
- Lane 2 continues, with option to exit.
- Lane 3 exits and does not return.
- Lane 1 continues ahead.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
Other events
Traffic signals
40mph speed limit begins
50mph speed limit begins
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.
Have you seen...
Driver Location Signs
If you're on the motorway (in England at least) you might have noticed some funny blue signs down the side of the road. What are they for?
About this page
Published
Last updated
Published
Last updated
