Baxter, re ADSB:
- the last thing the system ie the runway that gets landed-on, needs is three times the enroute traffic.
- Feeder Fix times may be more "efficient", but given that an aircraft lands at Perth every 2 minutes for 2 hours in peak times, generally after holding, how those aeroplanes get to the FF is irrelevant. ADSB will not make a big change here, apart from perhaps enabling slowups earlier on in the flight, saving a bit of fuel (although the Flow is issuing FF times quite early, eg in the climb, on some occasions).
- I wholeheartedly agree that ADSB will improve fuel efficiency with better level assignments and improve safety reduced radio chatter/congestion; roll on 2013.