Blinker Beacons | Flashing Lights | School Zones | CPC

The MUTCD manual states a Blinker Beacon shall consist of one or more signal sections of a standard traffic signal face with a flashing CIRCULAR YELLOW signal indication in each signal section. Blinker Beacons shall be used only to supplement an appropriate warning or regulatory sign or marker. Blinker Beacons, if used at intersections, shall not face conflicting vehicular approaches. Typical applications of Warning Beacons include the following: At obstructions in or immediately adjacent to the roadway; As supplemental emphasis to warning signs; As emphasis for midblock crosswalks; As supplemental emphasis to regulatory signs, except STOP, DO NOT ENTER, WRONG WAY, and SPEED LIMIT signs; and In conjunction with a regulatory or warning sign that includes the phrase WHEN FLASHING in its legend to indicate that the regulation is in effect or that the condition is present only at certain times.