After reading the implementation program I cannot see that at places like Ayers Rock & Broome which will become CTAF's, how you could say that the new system is safer. If you had radar it would work fine, however under the new system still with no radar I think it is an accident waiting to happen. As you could have in a busy time numerous jets, a few metro's, conquest, possibly a PC-12, plus numerous bug smashas all arriving within 5 minutes of each other. The IFR traffic have no DTI on each other and there is no requirement to carry a radio. This gets even worse when the wx is bad as you have guys ploughing along in cloud with no idea who else is out there!! Can't see how that is a better system. I think if the system is to be better and SAFER then we need to have the radar coverage.