The Australian train snafu is their problem, I guess. I think we have a similar setup in Arizona or some other place out west. Somebody correct me if I'm wrong, but I think it's a point to point mining line delivering ore to a smelter? Fine, if there's no chance of affecting the public when there's a wreck.
I have to recall the wreck of an eastbound Burlington freight in Lagrange, Il. in the late 1970s. A car derailed in the middle of the train and caused a huge pile-up, taking out the entire bridge over the IHB. At this moment a westbound Amtrak was approaching that bridge and thanks to the warning from the crew of the freight, they almost stopped with only the 2 Amtrak SDP40s going into the abyss where there had been a bridge just moments before. Amazingly, none of the cars on the Amtrak train derailed. I heard from someone second hand that the crew in the Burlington caboose sent the first warning over their radio that a wreck was happening and without that warning received by the crew on the Amtrak train, I shudder to think what could have been the result.