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The city of Cleveland, Ohio installed the first traffic light system in the U.S on August 5, 1914. Compared to today, the volume of traffic was insignificant, yet it was clear that some system was needed to address the growing confusion of cars, horses and pedestrians. At the time, the automobile was really beginning to catch on across the nation, and numbered about 1.8-billion about six times more than just five years earlier. Now, there are more than 132-million cars registered and the average person spends 36 hours a year in traffic congestion.

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