the solid form of water, produced by freezing; frozen water. 2. the frozen surface of a body of water. 3. any substance resembling frozen water: camphor ice. 4. a frozen dessert made of sweetened water and fruit juice.
The first electric traffic light was developed in 1912 by Lester Wire, a policeman in Salt Lake City, Utah, who also used red-green lights. On 5 August 1914, the American Traffic Signal Company installed a traffic signal system on the corner of East 105th Street and Euclid Avenue in Cleveland, Ohio.he first four-way, three-color traffic light was created by police officer William Potts in Detroit, Michigan in 1920. Ashville, Ohio claims to be the home of the oldest working traffic light in the United States, used at an intersection of public roads from 1932 to 1982 when it was moved to a local museum.
Earnest Sirrine of Chicago, Illinois patented (976,939) perhaps the first automatic street traffic system in 1910. Sirrine's system used the non illuminated words stop and proceed. Lester Wire of Salt Lake City, Utah invented (unpatented) an electric traffic light in 1912 that used red and green lights.