HowTo/Build a Crossing
Both turntables and railroad crossings are “standard objects“ rather than “track objects” but they both have spline points so that you can attach spline objects such as roads and track to them.
Place a rail crossing as you would do a normal object and then connect track segments to the track spline points. Next, connect road splines to the road spline points.
If you have laid the crossing correctly, when you load the map into Driver, road traffic will stop and allow your trains to run through the crossing.