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 ...

Distance signs on the highway tell you important information, including how far you are from your destination, where the next exit is, or when to expect a rest stop. These signals aren't always ...

Traffic signs have to communicate crucial information quickly and simply, to anyone who might be on the road. They use letters and numbers to lay out information in plain language but they also use ...