Route
Junction number
16
Markerpost
260 km
Name
Barthomley Interchange
Terminus
Not a terminus
Other routes
A500, B5078
Authority
Restricted turns
Full access
Services
No services
M6 J16 Barthomley Interchange
Layout and signage
Lane configuration
- Lane 1 is gained from the entry sliproad.
- Lane 2 continues, with option to exit.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
- Lane 1 exits and does not return.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
Other events
Variable Speed Limits apply
National 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...
Glasgow
Even in the 1960s heyday of roadbuilding, some people said you could never build your way out of congestion. Glasgow had plans to prove them wrong.
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Published
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