When do flashing red and yellow light control intersectons?

Flashing red and yellow light control intersections are typically used to manage traffic flow at intersections where a full traffic signal may not be necessary. A flashing red light indicates that drivers must come to a complete stop and yield to any oncoming traffic or pedestrians before proceeding, similar to a stop sign. In contrast, a flashing yellow light signals caution, allowing drivers to proceed with caution but requiring them to be aware of potential hazards. These controls help enhance safety while facilitating the movement of vehicles and pedestrians.