by Machinist » Fri Nov 25, 2011 7:26 pm
As far as I noticed scripting scenarios, the use of primary and secondary speed limits is related to the type (service class) of consist, not exactly to the type of cars used. You can assign a whole freight container train as Special, and it will run at the primary passenger (higher) speed, instead at the freight secondary (lower) speed. In UK railways, there are also tracks designed specially for diferent passengers and freights service classes.
Who doesn't have dog, hunts with cat.