Mmmm... on what planet??
Not this one!
The best US route, EK3, brings my system to it's knees because of compatibility mode. I can run Crysis full bore, if you don't know what that means don't talk systems.
I tried TPR's Elkhorn Extension a great US route, but running the scenario's was crappy due to Trainz inability to have good draw distance. You can't run a 70 car train when you only see 30 of them. It blips along in stutters and spits.
Maybe TS12 will advance Trainz past 2006.
Harold