Yes, but HOW is this done? Sometimes when I lay track at right angles to existing track, RT2 creates effectively an "overpass" that allows trains to run through each other. But other times when I do this, the tracks don't "overpass" and the trains have to wait for each other to pass through the square. Anyone know how RT2 decides when it creates an "overpass" and when it doesn't? Or of any way to make it do so?