Route
Junction number
3A
Markerpost
18.5 km
Name
Umberslade Interchange
Type
Terminus
Not a terminus
Other routes
M40
Authority
Restricted turns
Full access
Services
No services
M42 J3A Umberslade Interchange
Lane configuration
- Lane 1 continues ahead.
- Lane 2 continues, with option to exit.
- Lane 3 exits and does not return.
- Then further along:
- Lane 1 continues ahead (part time using the hard shoulder).
- Lane 2 continues ahead.
- Lane 3 is gained from the entry sliproad.
- Lane 4 is gained from the entry sliproad.
- Lane 1 exits and does not return (part time using the hard shoulder).
- Lane 2 exits and does not return.
- Lane 3 continues ahead.
- Lane 4 terminates.
- Lane 5 is gained from the entry sliproad.
- Lane 6 is gained from the entry sliproad.
Other events
Variable Speed Limits apply
National Speed Limit begins
What's new
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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...
Roundabouts
The UK has been driving in circles for a hundred years now, and this humble road junction has become part of British culture. Just what is so special about roundabouts?
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