A HAWK signal is a pedestrian activated light, designed specifically for mid-block pedestrian crossings, not traffic control at intersections. HAWK stands for High-Intensity Activated CrossWalk. The beacons are off until activated by a pedestrian. Once activated, they flash yellow, then become solid yellow before turning solid red, allowing pedestrians to cross while traffic is stopped. The solid red light then turns to a flashing red light, and drivers may proceed after the pedestrian has safely crossed. The beacons then return to the off mode. HAWKS cost about $150,000 where a traditional traffic signal costs upwards of $300,000.