Internet Explorer, Chrome Browser, Firefox Browser, Safari Browser
Feature19 October 2017, updated19 October 2017Siemens Mobility GmbHMunich
Over 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 (photo), 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. On the outside, traffic lights haven’t changed much over the last decades. But inside a traffic light, groundbreaking changes have taken place. Traffic lights have become more intelligent over the years: modern traffic management takes into account the current traffic situation and optimizes traffic flow, for example, by allowing "green waves" or by prioritizing emergency vehicles, buses, and trams.
Siemens Mobility GmbH
+49 152 01654597