Map of M4 Motorway Junctions

Map of the M4 motorway junctions.

West M4

To the West the M4 joins the M5 at M4 Junction 20 which heads north to Devon Cornwall and the South West of England.

The Western end of the M4 is in South Wales Junctions 23 to 48. Bridgend is on Junctions 25 to 37, M4 Junctions 44 and 45 for Swansea, Junctions 30 to 33 for Cardiff and Junctions 24 to 28 for Newport.

East M4

At the eastern end of the M4 is London, with Junctions for Slough, Reading, Newbury, Swindon and Bristol on the way to Wales in the West.

How Do I Find M4 Traffic News?

Simply type the search words in the search facility towards the top right of this page and click "search".

M4 eastbound between J8 and J7 | Eastbound | Accident
Fri, 25 Jul 2014 18:45:43 BST
M4 Current Traffic Incidents
On the M4 eastbound between junctions J8 and J7, there are currently delays of 15 mins due to an accident closing one lane. Normal traffic conditions expected from 7:45 pm.

M4 westbound between J13 and J14 | Westbound | Congestion
Fri, 25 Jul 2014 17:46:05 BST
M4 Current Traffic Incidents
On the M4 westbound between junctions J13 and J14, there are currently delays of 15 mins due to heavy traffic . Normal traffic conditions expected from 7:00 pm.

M4 eastbound between J10 and J8 | Eastbound | Congestion
Fri, 25 Jul 2014 16:12:07 BST
M4 Current Traffic Incidents
On the M4 eastbound between junctions J10 and J8, there are currently delays of 10 mins due to heavy traffic . Normal traffic conditions expected from 5:15 pm.

M4 westbound within J4B | Westbound | Congestion
Fri, 25 Jul 2014 15:49:37 BST
M4 Current Traffic Incidents
On the M4 westbound between junctions J4B and J6, there are currently delays of 10 mins due to heavy traffic . Normal traffic conditions expected from 5:00 pm.

M4 eastbound between J7 and J6 | Eastbound | Congestion
Fri, 25 Jul 2014 14:33:48 BST
M4 Current Traffic Incidents
On the M4 eastbound between junctions J7 and J4B, there are currently delays of 10 mins due to heavy traffic . Normal traffic conditions expected from 3:45 pm.

Map of M4 Motorway Junctions

West M4

East M4

How Do I Find M4 Traffic News?

Latest M4 News