When were traffic lights invented?

The first traffic light in South India was installed at Egmore Junction, Chennai in 1953. The city of Bangalore installed its first traffic light at Corporation Circle in 1963. The control of traffic lights made a big turn with the rise of computers in America in the 1950s. read more

Modern traffic lights are an American invention. Red-green systems were installed in Cleveland in 1914. Three-colour signals, operated manually from a tower in the middle of the street, were installed in New York in 1918. read more

His traffic signal used two non-illuminated display arms arranged as a cross that rotated on an axis, according to Inventor Spot. The signs said "stop" and "proceed." The first electric traffic light using red and green lights was invented in 1912 by Lester Farnsworth Wire, a police officer in Salt Lake City, Utah, according to Family Search. read more