M4 spur (Heathrow) southbound between M4 and J4A | Westbound | Congestion

Event Location : The M4 westbound between junctions J4 and J4A .
Delay (freeflow) : There are currently delays of 10 minutes against free flowing traffic.
Delay (profile) : There are currently delays of 10 minutes against expected traffic.
Event Status : Currently Active.
Event Reason : Congestion.
Return To Normal : Normal traffic conditions are expected between 08:00 and 08:15 on 21st December 2015.

Archived from Traffic England at 7:57 am, December 21, 2015