Why Traffic Lights are Red, Yellow and Green ? Secret Behind Traffic Lights
Published on November 13, 2016 , under Secrets & Hidden Facts
If you drive anywhere, it’s likely you’ve been stuck at one or hit the gas to get through before it changed from yellow to red, but why are they yellow red and green? Well, the lights were originally used by railways where red meant danger, green meant caution and white meant go. Unfortunately, if the Read More…