Michaelgm, Petan and Valvegear,
Sorry, but you are mere amateurs at acronyms here on RP. The ones you quote are all either Australian Rail or other well known ones - even to me.
If you are to be elevated to professional acronym status (PAS) you will need to work harder on the use of more esoteric acronyms (EA), especially those outside the prime thrust of this website which is, of course, Australian Rail. I suggest that you look to the automobile industry, electricity generation or metal smelting. Perhaps a few unexplained Pommie ones would help you as well.
Should you need help there are several posters here on RP who, I am sure, will be able to assist you with additional acronyms (AA) provided that you don't wish to know what the bloody hell they are talking about.
Renowned as I am for TT&D* I wish you all a MC&HNY** * Tolerance, tact and diplomacy** Merry Christmas and Happy New Year