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 ...

The purpose of all roadway signs is to provide safety and efficiency on the roadways by providing for the orderly and predictable movement of all road users. The purpose of roadway guide signs is to ...

When you’re driving down the highway, you naturally pay attention to traffic signs. But do you ever think about why they look the way they do or why they’re a certain color? Take the green ones. Green ...