The addition of an amber 'caution' light made driving safer and the three-color signal became the standard by the mid-1930s. Previous illuminated signals used only red and green lights. A native of Salt Lake City, Utah, Wire worked as a traffic officer and later as a detective for the Salt Lake City Police. Detroit traffic officer William Potts created this three-color, four-way traffic signal in 1920. MORGAN, a citizen of the United States, residing 4at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful improvement. He is credited with the invention of the electric traffic light in 1912. With the original traffic light, there was a signal for stop and a signal for go, allowing the dismal of traffic police. At heavily populated intersections, traffic police would wave on traffic, and whistle for the attention of drivers. While motor cars did not hit the streets of the UK until later in the 19th. Lester Farnsworth Wire (Septem April 14, 1958) was an American police officer and inventor. Before the invention of stop lights, Traffic police were used to monitor the roadways. So this weekend we give a nod to one of the traffic pioneers who started it all. While Wire’s system was indeed revolutionary, the title of world’s first electric traffic signal goes to a system installed on August 5, 1914, at the corner of Euclid Avenue and East 105th Street in Cleveland, Ohio. Mr Knight came up with the idea for traffic lights after more than 1,000 people died in road accidents in London in 1866. Sophisticated and complex networking allows them to detect cars, adjust delays and sync intersections.Įffective signal coordination improves safety, saves fuel, reduces emissions, and enhances traffic flow, and to think it all had a start here in Utah. Today Utah has over 2,000 traffic signals owned by the city, county and state governments. Lester became very discouraged, but people from larger cities were impressed by the innovation.įollowing his service in World War I, Lester made several improvements to the design, and over several years the traffic signal we know today came from it. No one wanted to stop, and often officers would find the light had been knocked over or destroyed during the night. William Potts, a police officer, designed the first three-color traffic light. Garrett Morgan, an African-American inventor, also created a traffic signaling system and was among the first to receive a traffic light patent. (Utah State History photo, used with permission)Īt first the signal was perceived as a joke by the local community. Lester Wire is credited with inventing the electric traffic light in Salt Lake City, Utah in 1912. Lester Wire, a Salt Lake City Police Officer, invented the first traffic signal.
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