Final answer:
When a school bus stops with red lights flashing on a 2-lane road, you must stop your vehicle until the lights are off and the bus starts moving. This law ensures the safety of students and should only be disregarded in extreme emergencies after ensuring safety.
Step-by-step explanation:
When a school bus has its red lights on and is stopped on a 2-lane road, you are required to stop your vehicle. The red lights on a school bus are similar to a traffic signal indicating stop. This rule is critical for the safety of students boarding or disembarking the bus. It is important to remain stationary until the red lights are turned off and the bus begins to move again. In scenarios where traffic laws may be temporarily overlooked, such as an emergency involving a pregnant woman, the situation is different, and immediate medical needs could justify carefully proceeding after stopping and ensuring it is safe to do so. However, this should only be done in extreme cases, and typically regarding a school bus, all traffic in both directions must stop and wait for the safety of all involved.