The answer for terminal areas is radar, and where you can't afford or justify a radar a multilaterator, not ADS/B.
That is correct, terminal areas, especially Sydney, Melbourne, and Brisbane etc, should have primary as well as secondary radar. The point is that ADS-B is ideal for the large enroute sectors that Oz has, and also where there are areas of poor radar coverage like around Bundaberg.
ADS-B and 'free flight' will only work if everybody has (and uses) ADS-B.
Agreed. I think the plan was to give all the GA aircraft one. Not sure what the current policy is, been lots of f**king around of AsA by Dick. The cost of putting a squitter in every GA aircraft is a lot less than what NAS has costed so far.
I think AirServices are jumping up and down and saying ADS-B is the way to go
This is the case, and ICAO have requested the results of our trails to establish separation standards for this technology. We are leading the way, just like with CPDLC, ADS, RNAV standards, RVSM.