When must a driver stop for a school zone speed limit sign?

A driver must stop for a school zone speed limit sign when the school zone lights are flashing. This specific requirement is in place to enhance safety for children who are arriving at or leaving school during peak hours. The flashing lights serve as a clear indicator that the school zone is active, signaling to drivers to reduce their speed and be vigilant for children who may be crossing the street.

While some might think that a driver should stop all day or only when children are present, those scenarios do not account for the designated operational hours of school zones, which are typically structured around school hours. Therefore, adhering to the flashing lights is crucial for complying with traffic regulations while also ensuring the safety of students in the area.