Route
Junction number
20
Markerpost
186.5 km
Name
Almondsbury Interchange
Type
Terminus
Not a terminus
Other routes
M5
Authority
Restricted turns
Full access
Services
No services
M4 J20 Almondsbury Interchange
Layout and signage
Lane configuration
- Lane 1 exits and does not return.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
- Then further along:
- Lane 1 is gained from the entry sliproad (part time using the hard shoulder).
- Lane 2 is gained from the entry sliproad.
- Lane 3 continues ahead.
- Lane 4 continues ahead.
- 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 continues ahead.
Other events
Variable Speed Limits apply
National Speed Limit begins
What's new
The sunlit uplands
On Saturday 31 May something historic happened. The Heads of the Valleys Road was finally complete.
Grand openings
Our much-loved Opening Booklets section has two new publications for you to explore, and we’re making some overdue changes to make them easier to find and easier to read.
Silver bullet
The Silvertown Tunnel is finally open for business. One question remains: what’s it for?
Have you seen...
Mancunian Way
Manchester's highway in the sky, carrying traffic around the city centre and rapidly becoming an iconic part of the city's heritage.
About this page
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