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2. Emergency vehicle lighting - Wikipedia

   en.wikipedia.org/wiki/Emergency_vehicle_lighting

   Emergency vehicle lighting, also known as simply emergency lighting or emergency lights, is a type of vehicle lighting used to visually announce a vehicle's presence to other road users. A sub-type of emergency vehicle equipment , emergency vehicle lighting is generally used by emergency vehicles and other authorized vehicles in a variety of ...

3. Mobile infrared transmitter - Wikipedia

   en.wikipedia.org/wiki/Mobile_Infrared_Transmitter

   An MIRT device consists of a timer circuit connected to an infrared LED array. The timer causes the infrared LEDs to strobe at specific frequencies, such as 10Hz for low priority (buses) or 14 Hz for high priority (emergency vehicles).

4. Emergency vehicle equipment - Wikipedia

   en.wikipedia.org/wiki/Emergency_vehicle_equipment

   An ambulance with two red revolving lights mounted above two flashing red lights, with two speakers between for the vehicle's electronic siren.Also seen are two antennae; the one seen between the two speakers is for a two-way radio, while the one seen in front of the flashing light on the left is probably for the vehicle's conventional AM/FM radio.

5. Strobe light - Wikipedia

   en.wikipedia.org/wiki/Strobe_light

   LED Strobe beacon on emergency vehicle. A strobe beacon is a flashing electric lamp used in a variety of industries as an attention-getting device, either to warn of possible hazards, or to attract potential customers.

6. Automotive lighting - Wikipedia

   en.wikipedia.org/wiki/Automotive_lighting

   The emergency stop signal is automatically activated if the vehicle speed is greater than 50 km/h (31 mph) and the emergency braking logic defined by regulation No. 13 (heavy vehicles), 13H (light vehicles), or 78 (motorcycles) is activated; the ESS may be displayed when a light vehicle's deceleration is greater than 6 m/s 2 (20 ft/s 2) or a ...

7. Traffic signal preemption - Wikipedia

   en.wikipedia.org/wiki/Traffic_signal_preemption

   Traffic signal preemption (also called traffic signal prioritisation) is a system that allows an operator to override the normal operation of traffic lights.The most common use of these systems manipulates traffic signals in the path of an emergency vehicle, halting conflicting traffic and allowing the emergency vehicle right-of-way, thereby reducing response times and enhancing traffic safety.