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  2. Traffic light - Wikipedia

    en.wikipedia.org/wiki/Traffic_light

    An LED 50-watt traffic light in Portsmouth, United Kingdom. Traffic 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. [3]

  3. History of traffic lights - Wikipedia

    en.wikipedia.org/wiki/History_of_traffic_lights

    An early two-light traffic signal by White Horse Tavern in Hudson Street, New York. Image taken in 1961. Despite the failure of the world's first traffic light in London in 1869, countries all around the world still made traffic lights. By 1880, traffic lights spread all over the world, and it has always been like that, since then.

  4. Embedded pavement flashing-light system - Wikipedia

    en.wikipedia.org/wiki/Embedded_pavement_flashing...

    An embedded flashing-light system, or an in-pavement flashing-light system, is a traffic safety device installed at pedestrian crossings or intersections to enhance driver awareness of pedestrians or traffic signals. These systems typically consist of LED lights embedded within the road surface, positioned to face oncoming traffic or pedestrians.

  5. Traffic light control and coordination - Wikipedia

    en.wikipedia.org/wiki/Traffic_light_control_and...

    The cost for such system would be prohibitive. After the newer generations of traffic signals that use LED lights which consume 85-90% less energy, it is now possible to incorporate battery backups into the traffic light systems. The battery backups would be installed in the traffic controller cabinet or in their own cabinet adjacent to the ...

  6. Street light - Wikipedia

    en.wikipedia.org/wiki/Street_light

    [48] [49] In the United States, the city of Ann Arbor, Michigan was the first metropolitan area to fully implement LED street lighting in 2006. Since then, sodium-vapor lamps were slowly being replaced by LED lamps. [50] Photovoltaic-powered LED luminaires are gaining wider acceptance. Preliminary field tests show that some LED luminaires are ...

  7. Solar traffic light - Wikipedia

    en.wikipedia.org/wiki/Solar_traffic_light

    Solar-energy-powered school traffic light Solar Panel Battery Enclosure on Traffic Light. Most solar traffic lights use LED lamps as they are more reliable [1] and have more advantages over other lighting devices like CFL lamps as they are more energy efficient, have a longer life span and turn on and turn off quickly. [2]

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