Occurred Nov 8, 2026, 11:45:47 PM UTC

First published Nov 9, 2026, 12:58:15 AM UTC · Last updated Nov 9, 2026, 12:58:15 AM UTC

Vehicle collision road disruption — [M4] M4 (TW5 ,UB3 ) (Hillingdon)

Reported by Transport for London Road Disruptions

A collision closed the M4 westbound at J3 between J3 and J4, and congestion affected the M4 and other major routes. The source advised using an alternative route.

At a glance

Affected location: Hillingdon

Illustrative image: London : Hillingdon - M4 Motorway — Lewis Clarke/Wikimedia Commons, CC BY-SA 2.0

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Why it matters

The closure and reported congestion affected travel on several major routes in the Hillingdon area.

Location

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Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 7/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 2/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 2/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 4/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Urgency: 6/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

Transport for London Road Disruptions Vehicle collision road disruption — [M4] M4 (TW5 ,UB3 ) (Hillingdon)Powered by TfL Open Data. Contains OS data © Crown copyright and database rights 2016. Geomni UK Map data © and database rights 2019. Usage terms

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