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M4 J4 traffic

Right now at M4 J4: 1 broken-down vehicle.

Updated 03:26 UK time · at J4 and the stretches either side

View on the live map All M4 traffic

Right now

M4 eastbound · J4B–J4

Broken-down vehicle

since 01:23 (2 h 3 min)

Motorway signs ×2
Timeline · 5 updates
1. 00:58 Motorway signs: “REPORT OF OBSTRUCTION”
2. 01:29 Motorway signs: “STRANDED VEHICLE”
3. 01:53 Motorway signs no longer show “REPORT OF OBSTRUCTION”
4. 02:53 Motorway signs: “REPORT OF OBSTRUCTION” (reported again)
5. 02:53 Motorway signs no longer show “STRANDED VEHICLE”

Closures tonight

No closures planned at J4 tonight.

The last 90 days

Incidents

97

Collisions

6

Road closed

1time

Typical time to clear

47 minmedian of 88

Busiest time

06:00–07:00

Recent incidents

M4 crash J4 eastbound17 Oct 2026 23:21 · cleared after 2 h 11 min
M4 reported crash J4–J4B westbound16 Oct 2026 05:29 · cleared after 1 h 21 min
M4 crash J4 eastbound15 Oct 2026 07:16 · cleared after 57 min
M4 stopped traffic J4–J4B westbound14 Oct 2026 06:51 · cleared after 2 h 54 min
M4 crash J4 eastbound3 Oct 2026 11:38 · cleared after 224 h 18 min
M4 crash J4 eastbound30 Sept 2026 07:14 · cleared after 1 h 2 min
M4 stopped traffic J4 eastbound25 Sept 2026 14:41 · cleared after 426 h 47 min
M4 crash J4–J4B westbound25 Sept 2026 08:09 · cleared after 447 h 52 min

Junctions either side

Every M4 junction

Common questions

Is the M4 closed at junction 4 right now?

No incidents have closed it right now.

Is M4 J4 closed tonight?

No closures are planned at J4 tonight.

How many crashes have there been at M4 J4?

6 collisions reported at or either side of J4 in the last 90 days, the latest on 17 Oct 2026 at 23:21.

Includes incidents at J4 and on the stretches either side of it. Sources: National Highways, TomTom, TfL and Traffic Wales. Times are UK time.