Originally Posted by
GreenGhost39
10.3.1 Selection of Runway in Use
10.3.1.1 Use of other than nominated runways. Controllers must not nominate a particular runway for use if an alternative runway is available, when:
(a) for runway conditions that are completely dry:
(i) the cross-wind component, including gusts, exceeds 20 KT;
(ii) the downwind component, including gusts, exceeds 5 KT.
(b) for runway conditions that are not completely dry;
(i) the cross-wind component, including gusts, exceeds 20 KT;
(ii) there is a downwind component.
Sometimes the issue is the excessive crosswind across the bay, especially the 34R threshold wind. The wind along RWY 07/25 could be 260/18 however the threshold winds at RWY 34L and R might be say 260/30.
If you wish to operate to higher crosswind criteria then lobby CASA to get the rules changed.
The other issue that needs to be considered is the safe management of traffic. If you run higher acceptance rates then you end landing up to say 45 per hour for several hours on 34// and then say 75 aircraft of these aircraft become departures and the achieved rate on a single departure runway is about 25 (or less if there is a significant number of aircraft that "require" 34L for departure). Do the maths on that, and then add another 20-25 arrivals per hour into the mix.
Build RWY 25L, fill in the northern part of the moat, that is, south of TWY Lima.