Locomotive with infinite traction?

[ngc427]

I was playing around with the Madrea Sugar Pine RR route, and the log incline at Little Sandy looks very promising for some activity background detail. I'm wondering if you could have an invisible locomotive with infinite traction to raise/lower cars on the extremely steep incline at a constant speed, or if the simplified AI physics will let it do that without any special physics changes.

[pschlik]

AI shouldn't care about physics and will move the train at the speed limit (note that this might be faster than you want, so adjust the efficiency of the AI to get the desired speed) even if the train is horribly underpowered for the gradient at hand.

Someday I'd like to make some sort of option in the activity file or consist file to prevent AI from cheating, but nothing special is required to let the AI do complete nonsense.