See below for some fun facts about traffic signals – who knew?
- Did you know that on Aug 5th 1914, a four-way traffic signal was installed in Cleveland, Ohio? It was the first electric traffic signal that resembles what’s seen all over the world today.
- Did you know what the yellow light did not exist until the 1920’s?
- Did you know that you can see the red light sooner than the green light? Science has validated the decision because red light has a longer wavelength than green so it can be seen from farther away. This is why the colour red was chosen for stop and green for go.
- Did you know that while the traffic light seems like it’s seemingly unchanged since the intervention of the amber light, it’s evolved over the decades to be a cutting-edge device, sporting energy saving LEDs and being controlled by large scale central traffic management centers in most cities.
