Harlington High Street is a narrow road with a single lane for each way of traffic. It is the secondary road that connects Heathrow Airport to most of north west London. Apart from a steady stream of car, van and other vehicle traffic the road also connects 3 bus routes.
One part of the road (near its end with Heathrow Airport) is particularily narrow because of on street parking spaces for residence. The result is an even further narrowing of the road to just a single lane for both sets of traffic. This is what happened in the space of just 30 minutes…
Transporting London 