when a ___ pedestrian-activated light is flashing above the street, slow down and be ready to stop.

A pedestrian-activated light flashing above the street means that drivers should slow down and be ready to stop for pedestrians crossing the street. This flashing light is typically yellow and activates to enhance visibility at the crosswalk, warning drivers that pedestrians may be crossing and that they should exercise caution and yield as necessary. It is a signal to be alert and prepared to stop if pedestrians are present at or near the crosswalk.