OK, men då finns ju faktiskt TrainStore:
"Tony Formoso's TrainStore is a great freeware utility that helps MSTS to load more quickly by "storing" unneeded routes and their associated consists, activities and rolling stock."
http://www.freeway-gmbh.com/include....d=50&themeid=0
Där kan du "plocka bort" rutter, lok och vagnar som du inte vill använda...