Is a track set on priority 1 the highest while a track set on priority 3 the lowest? Or is it the other way around? I notice in trainz you can set track priorities but it doesn't tell you which is the highest priority.
It doesn't quite work that way, it makes no difference what you set as there is no rank.
The AI that has a priority of 3 will plan it's route along any track that has a priority 3 marker on it, same for 2 and 1.
So on a multi track section you can set freight up as priority 3 so the AI will take the slow lane/track and express passenger as priority 1 to take the fast lane/track.:wave: