Pretty simple just wanted to mention it, so that I can look it up when I forget... 1. Select piece of track 2. Add an "Ancillary Loft Descriptor, on the left with the little plus and name it "CheckRail" 3. Change the line side, to whatever you want and be happy
In rl after derailing a train can not as an example drive down a bridge into water, instead it will stay at least close to the rails, in TSW its just for looking realistic, I don't think that they actually work.