Green highway signs, also called guide signs, are everywhere, and we pass them by without much thought. But their design has ...

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 ...

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 ...