M4 fast slip from M4 J4 westbound exit to M4 spur (Heathrow) southbound | Westbound | Congestion
Location : The M4 westbound between junctions J4 for Heathrow and J4A . Reason : Congestion. Status : Currently Active. Return To Normal : Normal traffic conditions are expected between 08:45 and 09:00 on 6 July 2019. Delay : There are currently delays of 15 minutes against expected traffic.