In Cleveland, Ohio, the first electric traffic light is installed on 5 August, 1914.

Cleveland, Ohio, became the site of a major transportation milestone: the installation of the first electric traffic light. On August 5, 1914, at the bustling intersection of Euclid Avenue and East 105th Street, the new system was switched on, marking a shift toward safer and more orderly urban travel. Before this innovation, traffic control relied mostly on police officers standing in the street, using hand signals to guide increasingly busy roadways.

The design of this early electric signal was simple but clever. It used just two colors—red and green—along with a warning buzzer that alerted drivers when the light was about to change. Although modern traffic lights include a yellow signal, this first version laid the groundwork for the standardized system we recognize today. Its installation showed how cities were beginning to adapt to the rapid rise of automobiles, which were creating new challenges in public safety and traffic flow.

The project itself was championed by James Hoge, who filed the patent for the electric traffic signal system. His design emphasized visibility and reliability, using wired electrical connections and elevated signal boxes placed on corner posts. By automating the control of traffic rather than relying solely on human direction, Hoge’s invention demonstrated how technology could create smoother and more predictable travel patterns even in busy metropolitan areas.

The success of Cleveland’s electric traffic light quickly inspired other cities to consider similar systems. Within a few years, electric signals began appearing across the United States, accelerating the modernization of roadways. Looking back, that single installation in 1914 wasn’t just a local improvement—it was the start of a global movement toward safer, more efficient streets.