Route
Junction number
4
Markerpost
170.5 km
Name
Coleshill Interchange
Type
Non-standard interchange
Terminus
Not a terminus
Other routes
M42, A446
Authority
Restricted turns
Some turns restricted
Services
No services
M6 J4 Coleshill Interchange
Layout and signage
|
The SOUTH WEST Birmingham (S) Solihull Birmingham  NEC M42 Link Lichfield A446 |
M42 A446 |
|
M42 A446 |
Coventry (S & W) NEC Birmingham A446 |
Lane configuration
- Lane 1 exits and does not return.
- Lane 2 splits to create a new lane.
- Lane 3 continues ahead.
- Then further along:
- Lane 1 is gained from the entry sliproad (part time using the hard shoulder).
- Lane 2 continues ahead.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
- Lane 1 exits and does not return (part time using the hard shoulder).
- Lane 2 continues, with option to exit.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
Other events
Variable Speed Limits apply
National Speed Limit begins
What's new
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.
The forever bottleneck, part 1
The M4 into London was one of the UK's earliest and most ambitious motorway projects. It was bold, pioneering... and almost instantly regretted.
Have you seen...
Liverpool Inner Motorway
There's almost no evidence of Liverpool's 1960's plans for an inner ring road on the ground - but the motorway that never materialised would have been astonishing. The full details on the route, and the missing part the M62, are here.
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