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  2. Solar traffic light - Wikipedia

    en.wikipedia.org/wiki/Solar_traffic_light

    Portable, solar-powered, traffic light used when construction workers must narrow a 2-way street to a single lane and must emplace traffic controls for safety. Solar traffic lights can also be used during periods following natural disasters, when the existing street lights may not function due to power outages and the traffic is uncontrollable.

  3. Pike Signals - Wikipedia

    en.wikipedia.org/wiki/Pike_Signals

    In 1932, George Pike's son started to make portable traffic signals. [3] In 1981, Andrew Pike, current managing director and grandson of George, founded Pike Signals [3] which was incorporated on 18 September 1981. [4] [5]

  4. Road traffic control device - Wikipedia

    en.wikipedia.org/wiki/Road_traffic_control_device

    Traffic lights feature three different lights that conveys different meanings. The red light means that the vehicle facing the traffic light must come to a complete stop. A green light means that the vehicle facing the traffic light may proceed when it is safe to do so. A yellow light indicates that a red light will follow, and vehicle drivers ...

  5. 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.

  6. A Study Proves Stoplights Need a Fourth Color: White

    www.aol.com/lifestyle/study-proves-stoplights...

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  7. Traffic light - Wikipedia

    en.wikipedia.org/wiki/Traffic_light

    An LED 50-watt traffic light in Portsmouth, United KingdomTraffic lights, traffic signals, or stoplights – also known as robots in South Africa, [1] [2] Zambia, and Namibia – are signaling devices positioned at road intersections, pedestrian crossings, and other locations in order to control the flow of traffic.