The "new" metron system is a system designed by people who think we have busy airports here in Australia whereas in actual fact the airports are quite quiet. Is Sydney flow control in contact with Perth flow? Is Brisbane talking to Sydney? They talk about controlled push back times but the real issue here is the airborne time not push back. To slot you in to an arrival space at an airport air traffic control need to control your airborne time. Off chocks time has nothing to do with it! What if you get caught behind an aircraft that then delays your airborne time? Why not follow countries that ARE actually busy and implement their system and learn from their experience? Another example where Australia thinks it is a world leader but in fact lags behind considerably. Very frustrating indeed!!
