On August 5, 1914, the first electric traffic light was installed in Cleveland, Ohio. This light consisted of only two colored bulbs, red and green, and was manually operated by a police officer. Though the traffic light was not a new concept, electricity made it viable and widely-used. Gas-powered electric traffic lights were known to […]

On August 5, 1914, the first electric traffic light was installed in Cleveland, Ohio. This light consisted of only two colored bulbs, red and green, and was manually operated by a police officer. Though the traffic light was not a new concept, electricity made it viable and widely-used. Gas-powered electric traffic lights were known to […]