100 years of traffic lights - Three lights steer our lives

100 years ago, on August 5, 1914, the first electric traffic light was installed on a city street in Cleveland, Ohio, marking a milestone in traffic management. Berlin’s Potsdamer Platz, at that time the busiest intersection in Europe, installed the famous five-sided traffic light tower made by Siemens in 1924. Today the red-yellow-green signals are an integral part of city landscapes worldwide.

More information: https://www.siemens.com/press/traffic...

• #science_technology
• #traffic_lights
• #red
• #yellow
• #green
• #berlins_potsdamer_platz
• #august_5
• #1914
• #modern_traffic_control
• #traffic_control_center
• #led
• #car
• #pedestrian
• #crossroads
• #roads