Of course, I know about stop signs. But maybe—maybe!—you didn't know this: stop signs weren't always red. We've talked about other red things before, and there's a reason we ended up with red ...

There's a sign post up ahead and if the sign on it reads "Stop Here on Red" it might cause some confusion for drivers who want to make a right turn on red at that intersection. A question answered ...

Why is red the standard color for stop signs? The short answer is this: because the representatives of the First National Conference on Street and Highway Safety in 1924 decided so. The First ...