Which action may improve your ability to see or hear a train while stopped at a railroad crossing?
Correct answer: C – Open the forward door
Pennsylvania’s CDL manual permits opening the forward door or driver’s window when doing so improves the driver’s ability to see or hear an approaching train. The driver should also turn off noisy devices and quiet passengers if necessary. The bus must remain at the proper stopping position while the driver looks and listens in both directions.
Source: Commercial Driver’s License Manual (PUB 223) — § 4.3.5, “Railroad-Highway Crossings Stops”

