A4 stopped traffic

Cleared Cleared at 18:31 on 23 Sept 2026, after 2 h 43 min.

Stopped traffic on the A4 at Maidenhead → Oldfield Road (B3028) / Lassell Gardens on Wednesday 23 September 2026, from 15:48. Cleared at 18:31 after 2 h 43 min. Timeline of reports from TomTom.

1. ≡

   A4 · Maidenhead → Oldfield Road (B3028) / Lassell Gardens

   Queueing traffic

   Wed 15:48–Wed 18:31 (cleared after 2 h 43 min) · delay ~11 min · queue 1.5 mi

   TomTom ×4

At its worst: stationary traffic · delay ~20 min

See the A4 on the live map A4 traffic now

Timeline

1. Wed 15:48 TomTom: queueing traffic, “Stationary traffic”, delay ~4 min
2. Wed 15:48 TomTom: queueing traffic, “Stationary traffic”, delay ~4 min
3. Wed 16:22 TomTom: queueing traffic, “Queuing traffic”, delay ~4 min
4. Wed 16:40 TomTom: “Queuing traffic”
5. Wed 16:54 TomTom: “Stationary traffic”
6. Wed 16:54 TomTom: delay now ~9 min (was ~4), “Stationary traffic”
7. Wed 17:07 TomTom: delay now ~14 min (was ~9)
8. Wed 17:21 TomTom: delay now ~20 min (was ~14)
9. Wed 17:35 TomTom: delay now ~13 min (was ~20)
10. Wed 17:49 TomTom: delay now ~7 min (was ~12)
11. Wed 18:01 TomTom: queueing traffic, “Stationary traffic”, delay ~11 min
12. Wed 18:31 TomTom no longer reports it
13. Wed 18:31 All clear: no source reports it any more

What the sources said

• Stationary traffic

Other recent incidents on the A4

• A4 crash Piccadilly eastbound · yesterday 06:45, cleared after 1 h 5 min
• A4 closed Knightsbridge westbound · Sat 14:09, cleared after 1 h 7 min
• A4 crash Great West Road westbound · Thu 22:57, cleared after 12 h
• A4 crash Bath Road eastbound · 6 Oct 2026 23:29, cleared after 54 min
• A4 crash Trafalgar Square northbound · 4 Oct 2026 02:23, cleared after 15 h 11 min
• A4 crash Strand westbound · 26 Sept 2026 21:21, cleared after 1 h 45 min
• A4 stopped traffic The Avenue → Hounslow · 23 Sept 2026 06:47, cleared after 13 h 24 min
• A4 closed · 22 Sept 2026 16:15, cleared after 29 h 42 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.