Green highway signs are everywhere, but why are they green?

When you first learned to drive, you were likely given a guide to the various road signs and their meanings. Whether it was in a formal Driver’s Education class or through a state-issued driver’s ...

But who chose green, and why? Well, there’s actually a science behind it. As the Arizona Department of Transportation explains, green is a “cool” color that won’t be distracting. Being on an ...

Highway signs are a ubiquitous part of America's infrastructure iconography. The U.S. highway shields are probably the most well-known mass-produced piece of aluminum in the country. However, the ...