I assume this is in response to the reported delays and airspace issues that we keep hearing about.
Why?
- Because most of industry refuses to embrace ADS-B, making the huge increase in jet traffic in non-radar WA not economically or safely manageable, resulting in too-long periods stuck at lower levels waiting for clearances;
- the refusal of too many captains to use off-track departures OCTA, thereby forcing nose-to-nose conflicts in the climb or descent, which is at best a silly idea. At least we won't have to worry about the Virgin E Jet aces trying to climb through other aircraft's levels with minimal nose-to-nose separation...
It won't help delays at Perth much. There will still be 40 jets trying to land on the one piece of bitumen that can only handle 24 per hour.