What technology uses strobe lights to activate traffic signals for emergency vehicles?

The technology that uses strobe lights to activate traffic signals for emergency vehicles is referred to as strobe light preemption devices. These devices are designed specifically to detect signals from emergency vehicles that are equipped with strobe lights. When the strobe light from the emergency vehicle is detected, the traffic signal changes to allow the vehicle to pass through intersections without waiting, thereby enhancing response times and improving safety for both responders and the public.

Traffic signal preemption devices can encompass various technologies, but in the context of strobe lights specifically activating the signal, it is the strobe light preemption devices that fit the description. Other systems may include laser technology or broader traffic management systems but do not uniquely focus on the use of strobe lights for this purpose.