Blue stop signs are not issued by the U.S. Department of Transportation. Instead, they're often used on private property, ...

Even a toddler can tell you the right shade of a stop sign. Since roughly the 1950s, all government-issued stop signs in the United States have been red. But you might be surprised to learn that ...

Red means “stop,” but what about blue? Drivers are noticing more than one stop sign color. Here’s where you might mind ...