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Home / Traffic / Incidents / M4

M4 Severe Cleared

M4 - Incident

1 Oct 2026, 00:32 Duration: 17h 3m 206 views

Incident Details

The M4 westbound between junctions J16 and J17

RoadM4

SeveritySevere

StatusCleared

Started00:32, 1 Oct 2026

Cleared17:35, 1 Oct 2026

Duration17h 3m

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⚡ Early Warning System

We detected congestion building on the M4 10 minutes before this incident was officially reported.

In the last 30 days, we've detected 380 incidents on the M4 an average of 2863 minutes early.

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