Midnight,
The benefits of reduced separation standards due to ADS-B across the country outside radar coverage isn't something that is readily apparent to operators.
On the contrary, it is very apparent to the analysis of major operators, who have a continuous dialog with various CNS/ATM providers, if it is there.
They are flying closer and level changes can be accommodated far more readily than was possible using pre-ADS-B procedural separation.
Theoretically true, but in practice, the difference between AUSEP standards and ADS-B has not been apparent, as there is just not enough traffic over most of the Australian FIRs to make a difference.
For the short distances of the major routes BNE-SYD-MEL, it's hardly applicable, but RVSM did make a measurable difference in costs.
Flex tracks & UPRs are often vastly different from the published route structure which just tend to be fairly similar to Great Circle tracks, so the benefits of flex tracks & UPRs to operators have been significant.
True, but not necessarily dependent on ADS-B.
Tootle pip!!