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Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 37 minutes. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 1h 17m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 1h 52m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 2h 27m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 3h 2m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 3h 37m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 4h 12m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 4h 47m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 5h 22m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 6h 2m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 6h 42m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 7h 17m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 7h 52m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 8h 27m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 9h 2m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 9h 37m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 10h 12m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 10h 47m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 11h 27m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 12h 2m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 12h 37m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 13h 12m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 13h 47m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 14h 22m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 14h 57m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 15h 37m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 16h 12m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 16h 47m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 19h 7m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 19h 42m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 20h 17m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 20h 52m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 21h 27m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 22h 7m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 22h 42m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
⏱ Still active — no changes from National Highways. Incident ongoing for 23h 17m. Delays of 10 minutes still recorded. Monitoring continues.
Location : The M4 westbound exit slip at junction J4B .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 15:00 and 15:15 on 15 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Wording as published by National Highways, recorded as it changed.
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