Originally Posted by
Prophead
Sorry but that is just wrong. Traffic from the M1 round to the M23 including the M40 M4 & M3 is all likely to go round the M25 past Heathrow. Then you have the M4 & A4 into and out of London. LHR is just part of a very busy interchange.
And it doesn't work much of the time.
I agree that this is a busy part of road, but you are burying your head in the sand if you think LHR isn't the primary cause of traffic in and around the M4/M25 interchange.