M4 fast slip from M4 J4 westbound exit to M4 spur (Heathrow) southbound | Westbound | Congestion

Location : The M4 westbound exit slip at junction J4 for Heathrow. Reason : Congestion. Status : Currently Active. Return To Normal : Normal traffic conditions are expected between 20:00 and 20:15 on 20 June 2021. Delay : There are currently delays of 10 minutes against expected traffic.