Route
Junction number
47
Markerpost
310.2 km
Name
Penllergaer Interchange
Terminus
Not a terminus
Other routes
A48, A483
Authority
Restricted turns
Full access
Services
Service area here
Service area name
Swansea
Services operator
Moto
M4 J47 Penllergaer Interchange
Layout and signage
|
Abertawe (Gn) Swansea (W) A483  Swansea
|
|
A48 A483 A48 |
Abertawe (Gn) Swansea (W) A483 Swansea
|
Lane configuration
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
- Lane 1 continues, with option to exit.
- Lane 2 continues ahead.
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...
Mickleham Bends
Once it was one of the UK's most dangerous roads — just what is so special about a bit of dual carriageway in Surrey?
About this page
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