Q: Honk: Why does Caltrans leave that plastic film on its green highway signs that dissolves over time and comes off in pieces — and just looks lousy? Why not just take it off before putting a new ...

Road signs are the one constant when driving across our wildly diverse country. That’s because America’s roads and highways have a big, fat style guide. Driving across America today, you will ...

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 ...