When approaching a railroad crossing, what kind of vehicles must stop?

When approaching a railroad crossing, school buses and vehicles transporting hazardous materials are required to stop. This regulation is in place to ensure the safety of passengers and the general public. School buses often have a significant number of young passengers who may not be as aware of their surroundings, making it critical for the bus driver to ensure the area is clear before proceeding.

Vehicles transporting hazardous materials are also mandated to stop due to the potential dangers these materials pose in the event of a collision. Stopping allows for better assessment of the situation and reduces the risk of accidents at the crossing.

Other types of vehicles are not specifically required by law to stop at every railroad crossing, although caution is always advised. Thus, while all drivers should approach crossings with care and be vigilant, the specific stopping requirement applies notably to school buses and hazardous materials vehicles.