WAAS (the Worthless Area Augmentation System)
Sadly, any move to implement WAAS in Australia would be an unnecessarily obsolete waste of money. With well over 30 SVs currently flying, the life of the Block IIs extended, Block IIIs on the way, over nearly 100 SVs planned and eventually likely to be used globally, with widespread global use of GBAS/GLS inevitable, Locata and other potential pseudolites used for multilateration on the horizon, and the fact that WAAS can never be used globally, it would be irresponsible to introduce WAAS/SBAS anywhere else in the world. In fact it is past time to start thinking about the decommission strategy for WAAS/EGNOS, just like the defunct IFR LORAN C, as an utter redundant waste of money. The future of Nav is in GPS, Galileo, and perhaps other basic SV constellations,via RNP, low cost inertial, GBAS, and likely even GBAS based multilateration. Since SA was turned off, and we have more than 30 SVs operational, and GBAS is now a reality (soon to likely even replace ILS), and multilateration via GBAS pseudolites is clearly possible (e.g., Locata etc), WAAS/SBAS is a system whose time has come, and passed, just like MLS (the Mythical Landing System).