How should you proceed when you approach a school bus displaying warning flashers while responding with lights and sirens?

When approaching a school bus displaying warning flashers, the most prudent course of action is to wait until the warning flashers are off. This aligns with the safety regulations and protocols in place to protect children and other pedestrians. The flashing lights serve as a critical alert that children may be present while boarding or exiting the bus, and the potential for them to unexpectedly enter the roadway increases when the bus is in this state.

It's essential to respect the bus's indication that it is not safe to proceed. Waiting ensures that you are minimizing risk to those who may be in the vicinity, particularly young children who might not be as aware of their surroundings or the vehicles in motion. This approach also demonstrates a commitment to public safety and adherence to traffic laws.

In contrast, the other options could lead to unsafe situations. Changing the tone of the siren and driving around the bus does not guarantee that the area is clear or that children are not crossing. Turning off the siren temporarily could confuse other drivers and might not provide adequate warning about your approach. Announcing on the PA system might not be effective if the siren is not audible or if children are distracted near the bus. Therefore, waiting until the flashers are off balances safety and operational efficiency effectively.