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.
Hardshoulder closure
05:039 Aug 2026reported just now
- Location
- M4 eastbound between J17 and J16
- Direction
- Eastbound
- Lanes closed
- Hard shoulder closed
- Reason
- Roadworks
- Schedule
- 23:59 Tue 27 Apr 2021 → 18:00 Fri 30 Jul 2027
Latest planned roadworks on the M4
The next planned roadworks scheduled on the M4.
M4 Northbound Jct 4A to Jct 4 lane 1 closure
05:039 Aug 2026reported just now
- Location
- M4 spur (Heathrow) southbound between M4 and J4A
- Direction
- Northbound
- Lanes closed
- Lane closures
- Reason
- Repair work
- Schedule
- 22:30 Sun 9 Aug → 05:30 Mon 10 Aug
Forecast - not confirmed
Search all the latest M4 traffic news →
Updated 05:05 Sun 9 Aug
Powered by National Highways’ Transport Data Feeds.
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.