What are runway guard lights also known as?

Runway guard lights are commonly referred to as WIG WAG lights. These lights are designed to provide visual indication to pilots and vehicle operators at intersections of runways and taxiways, especially in low visibility conditions. The term "WIG WAG" describes the alternating flashing pattern of the lights, which serves to attract attention and enhance safety at critical points of an airport's infrastructure. This distinct lighting helps ensure that all users of the airfield are aware of the intersection, thereby reducing the risk of accidents.