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Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 34 minutes. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 1h 9m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 1h 44m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 3h 44m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 4h 19m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 4h 54m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 5h 29m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 6h 9m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 6h 44m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 7h 19m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 7h 54m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 8h 34m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 9h 14m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 9h 54m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 10h 29m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 11h 4m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 11h 39m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 12h 14m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 12h 49m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 13h 24m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 14h 4m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 14h 39m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 15h 14m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 15h 49m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 16h 24m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 18h 34m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 19h 14m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 19h 54m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 20h 29m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 21h 4m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 21h 39m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
⏱ Still active — no changes from National Highways. Incident ongoing for 22h 44m. Monitoring continues.
Location : The M4 westbound between junctions J18 and J19 .
Lane Closures : The hard shoulder and lane 1 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:30 and 16:45 on 2 June 2026.
Return To Normal : Normal traffic conditions are expected between 16:30 and 16:45 on 2 June 2026.
Lanes Closed : There is one of three lanes closed.
Wording as published by National Highways, recorded as it changed.
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