A4 crash Trafalgar Square northbound

Cleared Cleared at 17:34 on 4 Oct 2026, after 15 h 11 min.

Crash on the A4 northbound at Trafalgar Square on Sunday 4 October 2026, from 02:23. Cleared at 17:34 after 15 h 11 min. Timeline of reports from TfL.

1. !

   A4 northbound · Trafalgar Square

   Collision

   Sun 02:23–Sun 17:34 (cleared after 15 h 11 min)

   TfL ×2

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Timeline

1. Sun 02:23 TfL: collision
2. Sun 04:54 TfL: “damaged following a collision Approach with caution.”
3. Sun 06:30 TfL: incident
4. Sun 10:16 TfL: “There are no reported delays.”
5. Sun 17:34 TfL no longer reports it
6. Sun 17:34 All clear: no source reports it any more

What the sources said

• [A4] Trafalgar Square (Northbound) at the junction of [A4] Charing Cross - The traffic signals are damaged following a collision Approach with caution.
• King's Trust Palace to Palace Bike Ride - The Mall (All approaches) at the junction of Queens Gardens - A charity event is taking place. There are no reported delays.

Other recent incidents on the A4

• A4 crash Great West Road westbound · Thu 22:57, cleared after 12 h
• A4 crash Bath Road eastbound · Tue 23:29, cleared after 54 min
• A4 crash Strand westbound · 26 Sept 2026 21:21, cleared after 1 h 45 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.