Heck, even a toddler can tell you that stop signs are red. That’s because since the 1950s, red has been the required background color for all government-regulated stop signs in the United States. But ...

The stop sign is one of the most recognizable symbols on the road. Its octagonal shape and bright red color are universally understood, but sometimes, you might come across one that’s a different ...

Q: At a four-way stop with three cars approaching the intersection, in what order do they go? The first to arrive is the first to leave, but then does it pass to the left or pass to the next to arrive ...