M4 delays J20–J19 eastbound

Live Still reported at 09:16 UK time, since Thu 09:34 (455 h 42 min).

Long delays on the M4 eastbound at J20–J19 on Thursday 24 September 2026, from 09:34. Still reported at 09:16 UK time. Timeline of reports from the motorway signs and TomTom.

1. B

   M4 eastbound · J20–J19

   Broken-down vehicle

   since Thu 09:34 (455 h 42 min) · delay ~45 min

   Motorway signs · TomTom

See the M4 on the live map M4 traffic now

Timeline

1. Thu 09:16 Motorway signs: “STRANDED VEHICLE-SLOW”
2. Thu 10:04 Motorway signs no longer show “STRANDED VEHICLE-SLOW”
3. Thu 10:04 All clear: no source reports it any more
4. Thu 17:06 Motorway signs: “STRANDED VEHICLE-SLOW” (reported again)
5. Thu 17:36 Motorway signs no longer show “STRANDED VEHICLE-SLOW”
6. Thu 17:36 All clear: no source reports it any more
7. 07:27 Motorway signs: “STRANDED VEHICLE-SLOW” (reported again)
8. 07:28 TomTom: queueing traffic, “Slow traffic”, delay ~4 min
9. 07:32 TomTom: now says broken-down vehicle, “Queuing traffic, Broken down vehicle”
10. 07:37 TomTom: “Stationary traffic, Broken down vehicle”
11. 07:41 TomTom: delay now ~16 min (was ~11)
12. 07:55 TomTom: delay now ~29 min (was ~21)
13. 08:37 TomTom no longer reports it
14. 08:41 TomTom: broken-down vehicle, “Stationary traffic, Broken down vehicle”, delay ~38 min (reported again)

What the sources said

• Overhead signs read “STRANDED VEHICLE-SLOW” (3 signs; furthest along: M4 eastbound between J20 and J19).
• Stationary traffic, Broken down vehicle

Other recent incidents on the M4

• M4 crash J6–J5 eastbound · 07:10, cleared after 1 h 9 min
• M4 crash J3 eastbound · yesterday 18:51, cleared after 1 h 2 min
• M4 closed J19 westbound · yesterday 07:57, cleared after 4 h 56 min
• M4 delays J3–J2 · yesterday 06:41, cleared after 1 h 36 min
• M4 reported crash J15–J16 westbound · Sat 12:09, cleared after 1 h 5 min
• M4 crash J3–J2 eastbound · Sat 09:28, cleared after 45 min
• M4 crash J8–J7 eastbound · Fri 20:12, cleared after 1 h 50 min
• M4 reported crash J15–J14 eastbound · Fri 19:27, cleared after 43 min
• M4 stopped traffic J20–J19 · Fri 15:47, cleared after 1 h 10 min
• M4 crash J11–J12 westbound · Fri 15:06, cleared after 11 h 35 min

About this page

This page shows what the data sources reported about this event and when, merged from every source that reported it at the same place. It doesn't say what caused it or whether anyone was hurt: no source reports that. Times are UK time. For live alerts, follow @motorways.me on Bluesky.