All clear
No accidents reported on the M4
Nothing unplanned in the National Highways feed for this road right now. Roadworks and planned closures are listed separately.
Clear
No accidents reported on the M4 right now. Roadworks and planned closures are on the M4 traffic page.
No. Nothing unplanned is reported on the M4 right now: no collisions, breakdowns or obstructions in the National Highways feed. 2 other restrictions (roadworks or queues) are on the M4 traffic page. 3 unplanned incidents on the M4 have been reported and cleared since midnight. The latest to clear was a lane closure at J8 to J10 westbound, reported at 14:32 and cleared by 14:55.
Updated at 17:27 · refreshes every 5 min
Nothing unplanned in the National Highways feed for this road right now. Roadworks and planned closures are listed separately.
Collisions, breakdowns and obstructions reported since midnight and now cleared. We check the National Highways feed every 5 minutes, so a cleared time is accurate to about 5 minutes.
M4 westbound between J8 and J10 · set on the overhead signals
M4 westbound between J8 and J10 · set on the overhead signals
M4 westbound between J8 and J10 · set on the overhead signals
This page lists unplanned incidents only: collisions, breakdowns and obstructions reported on the M4. For the full picture including roadworks see M4 traffic, and for what’s shut this weekend see M4 closures.
The M4 runs west out of London past Heathrow, Reading and Swindon, over the Prince of Wales Bridge and into South Wales as far as Pont Abraham. The smart-motorway section between J3 and J12 and the Brynglas Tunnels at Newport are its two best-known bottlenecks. Welsh-side incidents come from Traffic Wales; English-side from National Highways. Everything refreshes every 5 minutes.
Junction names © OpenStreetMap contributors