Quote: " Can you please explain why departure queues, holding to land, etc, will be extended, when (at current traffic levels) each runway will be handling only half the takeoffs and half the landings. "
Yes, WHBM, exactly right at current traffic levels, but the point of moving to mixed mode would be to cram in more movements within the existing infrastructure, and that too has its limititations (physically and politically). There is no alternative to further expansion.
Quote: "Cobblers. Clearly a leading proponent of HACAN. Can't be arsed proving you wrong, but if S1E won't, I gladly will."
Hardly a leading proponent of HACAN, Calmcavok, look at the facts, actually think LHR needs two more runways and soon!
Under a four runway situation, the retention of alternation (two runways for landing and two for takeoff) would almost certainly be the political trade off if this was ever to be approved, which is highly unlikely, obviously.
You could check my previous posts and take a look at the Thames airports threads and you will find consistent support for LHR expansion, and consistent scepticism of an estuary airport (sorry Silverstrata!), but suspect that "you can't be arsed".
Last edited by Fairdealfrank; 14th May 2012 at 19:53.