For the simple minded like me...
Has a double length runway with simultaneous arrivals and departures of jets each carrying 100+ people ever been done before at a large and busy commercial airport ?
I ask specifically about a commercial airport - I imagine there are all kinds of things that highly trained military pilots with very manouvrable aircraft and sharing a common mother tongue could achieve but would not be viable for civilian crew in a B747 with english as a 2nd or 3rd language
Would the double length runway idea really work operationally or is it full of flaws ?