Originally Posted by
Hotel Tango
A doubling of A380 operations might alleviate runway congestion
This sounds nice on paper, but .... It might work if only 380ies would operate from these runways. But as DXB shows, a mixed operation with 737, 320 and smaller needs greater separation due to wake-turbulence of the supers. Even heavies need more separation from the behemoths. DXB during rush hour has a steady and very healthy mix of S/H/M and sometimes L aircraft. The result is some painful waiting for TO or LDG and i reckon a haul of more or less the same amount of total pax per hour as without the supers. At least not that much of a spectacular increase worth more supers.
I guess that no airport would go down the road of super and heavy only. They might improve the situation if they dedicated one runway for the biggies and another one for the rest, but even this would face some huge organisational problems not worth more supers.