What to do at a railroad crossing as a CDL driver - Winsor Driving School 

Supposed to put your four-way flashers on 500 to 100 ft. Approaching the railroad crossing. 50 to 15 ft look left right left. Listen for horns, bells and whistles and then safely go across the tracks and turn off your flashers when your rear Bumper crosses the tracks

You also have to get into farther right lane 200 feet before the RxR also ensure landing gear is all the way up.

Avoid shifting GEARS on tracks?

For automatic trucks. Do I need to roll down my window to check when I pass the railroad?

When I stop do I need to set my parking brakes or is it ok to just hold my service brake during this part of the test? For cdl class A??