Location : The M4 westbound exit slip at junction J4B .
Reason : Vehicle fire.
Status : Currently Active.
Time To Clear : The event is expected to clear between 07:15 and 07:30 on 12 December 2025.
Return To Normal : Normal traffic conditions are expected between 07:15 and 07:30 on 12 December 2025.
Lanes Closed : All lanes are closed.
