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M1 crash J20–J21 northbound

Crash on the M1 northbound at J20–J21 on Monday 2 November 2026, from 12:30. Cleared at 15:21 after 2 h 51 min. Timeline of reports from TomTom and the motorway signs.

Status
Cleared 15:21 on 2 Nov 2026, after 2 h 51 min
Location
M1 northbound · J20–J21
Reported as
Collision
At its worst
Stationary traffic · delay ~31 min
Sources
TomTom ×5 · Motorway signs ×2
View on the live map M1 traffic now

Timeline

  1. Motorway signs: “COLLISION SLOW DOWN”
  2. TomTom: queueing traffic, “Stationary traffic”, delay ~12 min
  3. TomTom: queueing traffic, “Queuing traffic”, delay ~5 min
  4. TomTom: queueing traffic, “Stationary traffic”, delay ~13 min
  5. TomTom: now says collision, “Stationary traffic, Accident”
  6. TomTom: delay now ~12 min (was ~6), “Stationary traffic”
  7. TomTom: “Queuing traffic”
  8. TomTom: “Stationary traffic”
  9. TomTom: delay now ~25 min (was ~17)
  10. TomTom: queueing traffic, “Stationary traffic”, delay ~15 min
  11. TomTom: queueing traffic, “Stationary traffic”, delay ~10 min
  12. Motorway signs no longer show “COLLISION SLOW DOWN”
  13. TomTom: queueing traffic, “Slow traffic”, delay ~4 min (reported again)
  14. TomTom: delay now ~8 min (was ~14), “Queuing traffic”
  15. TomTom: “Slow traffic”
  16. Motorway signs: “STRANDED VEHICLE-SLOW”
  17. TomTom: “Queuing traffic”
  18. TomTom no longer reports it
  19. All clear: no source reports it any more
  20. Motorway signs no longer show “STRANDED VEHICLE-SLOW”
  21. All clear: no source reports it any more

Source reports

Other recent incidents on the M1

Live traffic and past incidents at M1 J20 and M1 J21.

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