When must you stop for a school bus with flashing red lights on a roadway with 3 or more lanes?

The correct response indicates that you must stop for a school bus with flashing red lights if you are traveling in the same direction as the bus. This rule is based on ensuring the safety of children getting on and off the bus. When the bus is displaying its flashing red lights, it signals to all drivers that they must come to a complete stop to protect the children who may be crossing the street in front of or behind the bus as they load or unload.

In Washington State, the law specifically requires that vehicles in both directions stop for a school bus on a two-lane road. However, on a roadway with three or more lanes, only those vehicles traveling in the same direction as the bus are required to stop. Vehicles traveling in the opposite direction on multi-lane roads are not required to stop, but they should still exercise caution and be aware of any children that may be present.

Thus, the emphasis is on the safety of children around school buses, and the correct answer reflects the legal obligations of drivers in relation to school bus signals.