Here’s a video of an old gated level crossing. You’ll see how a train changes route at this diamond interlocking crossing.
There are lots of interesting gated railway crossings to use when you are designing your own model train layout.
It’s a great old traincar combo with examples of a United States Army Ambulance Kitchen Car. You will also see some historic EMD locomotives and passenger cars.
Here’s a nice Bachmann road crossing for an HO setup.