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Traffic Light Systems

Traffic lights are signalling devices positioned at road intersections, pedestrian crossings, and other locations to control flows of

Traffic lights are signalling devices positioned at road intersections, pedestrian crossings, and other locations to control flows of traffic. It requires more than slight control and coordination to ensure that traffic moves as smoothly and safely as possible and that pedestrians are protected when they cross the roads. A variety of different control systems are used to accomplish this, ranging from simple clockwork mechanisms to sophisticated computerized control and coordination systems that self-adjust to minimize delay to people using the road.

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