At a railroad crossing, what must a bus driver do even if no train is visible?

RAILROAD CROSSING RULES for buses carrying passengers are more stringent than for other vehicles because buses carry multiple lives. MANDATORY STOP REQUIRED: Federal law (49 CFR 392.10) requires buses carrying passengers to STOP at ALL railroad crossings — even uncontrolled crossings, even if no gates or lights are present, even if no train is visible. STOP PROCEDURE: Approach slowly; stop within 50 feet but not closer than 15 feet from the nearest rail; shift to a lower gear (to avoid stalling in the crossing); open the forward door (to hear trains better — some states require this, good practice everywhere); look and listen in both directions for at least several seconds; check for trains even if the lights are green — lights can malfunction; PROCEEDING: Proceed in a gear that will not require shifting while crossing; do not shift gears while on the tracks; do not stop on the tracks; clear completely (the rear of the bus) before slowing; EXCEPTIONS (rare): Controlled crossings with a police officer directing traffic; some jurisdictions have specific exemptions for transit buses at specific controlled crossings. THE REASON: Buses cannot maneuver away quickly if a train appears; the consequences of a collision between a bus full of passengers and a train are catastrophic; the mandatory stop rule ensures the driver verifies safety before committing.