M4Traffic.co.uk
M4 Traffic is part of the UK Traffic News network.
UK Traffic News is our central independent
traffic news
website which features the latest traffic news from around
the UK.
M4 Traffic is however dedicated to M4 traffic news, M4 traffic reports and information about M4 delays and roadworks.
M4 Traffic is one of our regional or motorway specific websites.
If you are interested particulary in M4 traffic or looking for a website that specialises in M4 traffic or a website dedicated to M4 traffic then that is exactly what M4 Traffic.co.uk is all about.
Information about the M4 Motorway
M4 Traffic also features news, updates and other information about the M4 motorway.
Search all the latest M4 traffic news →
Latest accident or incident on the M4
The most recent accident or incident on the M4 that we are aware of.
Latest active roadworks on the M4
Roadworks live on the M4 right now.
M4 eastbound Jct 5 entry slip road lane closures
21:1913 Aug 2026reported 40 min ago
- Location
- M4 J5 eastbound access
- Direction
- Eastbound
- Lanes closed
- Slip road closed
- Reason
- Roadworks
- Schedule
- 19:55 Thu 13 Aug → 06:00 Fri 14 Aug
+ 8 more active roadworks - search all M4 traffic news →
Latest planned roadworks on the M4
The next planned roadworks scheduled on the M4.
M4 Eastbound Jct 19 to Jct 18 lane 1 closure
21:1913 Aug 2026reported 40 min ago
- Location
- M4 eastbound between J19 and J18
- Direction
- Eastbound
- Lanes closed
- Lane closures
- Reason
- Maintenance work
- Schedule
- 21:00 Thu 13 Aug → 06:00 Fri 14 Aug
Forecast - not confirmed
+ 4 more planned roadworks - search all M4 traffic news →
Search all the latest M4 traffic news →
Updated 22:00 Thu 13 Aug
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About the M4 motorway
The M4 is one of the UK’s busiest and most important motorways, running around 189 miles from London west through Reading, Swindon and Bristol, across the Severn into South Wales to Newport, Cardiff, Swansea and Pont Abraham. It connects with the M25 (J4b), M32 (J19), M5 (J20) and the M48 Severn route (J21/J23). With heavy commuter and freight traffic, roadworks and incidents are common — so it pays to check the latest M4 traffic news before you set off.
M4 Traffic gathers the newest M4 traffic reports and updates in one simple, mobile-friendly place, refreshed throughout the day, so you can plan your route and avoid the worst of the queues.