Goofy question, probably simple. How do I get my spline railroad to cross the bridge instead of go under the bridge. 

Or do I have to simply stop spline before bridge, do manual railroad entities over the bridge, then spline again on the other side? 

Picture below... Using Spline/deform/strip for railroad/instances for fence x2

Bonus question, is there a way in scrypts to move the train along a path? Kind of like the starting camera feature...

Did anyone ever figure this out? I'm also curious about splines over top of each other, moving them up or down the tree order doesn't seem to affect which lays over top of which.