Originally Posted by
philbky
The use of one runway for take off, the other for landing, has stymied the reduction in delays for years. Having had professional contact with the CAA and NATs for many years I know the "reason" but can point to many airports around the world where runways with similar proximities work in parallel for landing safely and satisfactorily.
The fact that Heathrow operates its runways in segregated mode, with the runway roles alternating at intervals, has nothing to do with safety considerations.