At a railroad crossing with no white line, where must you stop the bus?

Stopping before the crossbuck sign at a railroad crossing is necessary for ensuring the safety of passengers and maintaining awareness of oncoming trains. The crossbuck sign indicates the presence of a railroad crossing and typically serves as a visual cue that a driver needs to prepare to stop.

By stopping before the crossbuck, the bus driver can assess the situation ahead — looking and listening for trains while ensuring that they don’t inadvertently block the tracks. This stop position allows sufficient space for safe maneuvering and prevents accidents by ensuring that the bus is not in danger of being struck by an approaching train.

Other options do not provide the same level of safety and awareness. Stopping at the flashing lights may not be appropriate because the lights are usually used in conjunction with a descending train signal. Stopping directly at the railroad track could place a vehicle in a hazardous position if a train is approaching. Similarly, stopping at the advance warning sign does not allow for adequate evaluation of the track conditions prior to the crossing.