This all sounds a bit frightening for a foreign driver: $500 fines for basically doing nothing except not being insanely-vigilant about speed limit signs. It's pretty obvious that, in Australia, you cannot simply drive a "reasonable speed"; you have to devote much of your attention to watching the speed limit signs. This strikes me as horrible public policy, but Australia is certainly not alone in the world in burdening motorists with draconian fines for miniscule speed violations.
Are these cameras confined to the major cities, or are they on rural roads? I'm doing a 3-week drive across Australia and, if the cameras are prevalent, I've got a bad feeling that my luck will eventually run out. Is there a website that tracks the cameras? Thanks.