M4 crash J13–J12 eastbound

Crash on the M4 eastbound at J13–J12 on Sunday 18 October 2026, from 16:17. Cleared at 17:46 after 1 h 30 min. Timeline of reports from the motorway signs and TomTom.

Status

Cleared 17:46 on 18 Oct 2026, after 1 h 30 min

Location

M4 eastbound · J13–J12

Reported as

Collision

At its worst

Delay ~9 min

Sources

Motorway signs · TomTom

Timeline

1. 16:17 Motorway signs: “REPORT OF COLLISION”
2. 17:00 TomTom: queueing traffic, “Queuing traffic”, delay ~7 min
3. 17:05 Motorway signs no longer show “REPORT OF COLLISION”
4. 17:18 TomTom: “Slow traffic”
5. 17:28 TomTom: “Queuing traffic”
6. 17:32 TomTom: “Slow traffic”
7. 17:46 TomTom no longer reports it
8. 17:46 All clear: no source reports it any more

Source reports

• Overhead signs read “REPORT OF COLLISION” (12 signs; furthest along: M4 eastbound between J13 and J12).
• Slow traffic

Other recent incidents on the M4

• M4 crash J15–J14 eastbound18:24 · Live
• M4 stopped traffic J13–J1417:28 · cleared after 1 h 9 min
• M4 crash J16–J1716:05 · cleared after 41 min
• M4 reported crash J15–J16 westbound01:38 · cleared after 55 min
• M4 crash J4 eastboundyesterday 23:21 · cleared after 2 h 11 min
• M4 crash J8–J10 westboundyesterday 12:37 · cleared after 51 min
• M4 closed J14–J15 westboundFri 21:09 · cleared after 2 h 5 min
• M4 crash WestboundFri 16:05 · cleared after 35 min
• M4 crash J10–J8 eastboundFri 15:33 · cleared after 2 h 3 min
• M4 stopped traffic J16–J17 westboundFri 14:10 · cleared after 1 h 26 min

The sources don't report causes or injuries, so neither does this page. Times are UK time. For alerts, follow @motorways.me on Bluesky.