Traffic light6/21/2023 In 1926, the company SICE (linked at that point to General Electric, owner of the traffic light patent) installed for the first time in Spain a “streetlight with illuminated signals to regulate the circulation of pedestrians and vehicles" which we now call a “traffic light”. The first one in Europe was installed in Berlin, Germany, only 10 years later. Thus, the world's first electric traffic light was installed in Cleveland, USA in 1914. Knight to be adapted with a safer, electric design. The evolution in the installation of the first electric streetlights allowed the invention of J.P. The growing need to control traffic due to increased use of various types of vehicles and the resulting traffic congestion led to the recovery of the traffic light at the beginning of the twentieth century. A few months after its installation, an accidental explosion seriously injured the policeman in charge of its operation and the traffic light was removed. During the day, when the arm was upright it meant “go”, and when it was in horizontal position it meant “stop” and at night, gas lamps were used with the color green for “go” and red for “stop. Its design consisted of two vertical arms with two gas lamps which were operated manually by a policeman. Using railway signals as a reference, rail engineer John Peake Knight designed the first traffic light used to control traffic. One hundred fifty years ago in December 1868, the first traffic light in the world was installed in London outside the British Parliament of Westminster.
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