Sunday, 5 July 2015

The Origin Of The Green, Yellow, And Red Color Scheme for Traffic Lights

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Traffic lights alternate the right of way accorded to road users by displaying lights of a standard color (red, yellow, and green) following a universal color code.

The first manually operated gas lit traffic light was installed in 1868 in London, though it was short-lived due to explosion. The first safe, automatic electric traffic lights were installed in the United States starting in the late 1890s.

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