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 ...

Red stop signs are assumed to be the standard across the nation, but not all stop signs are this color. Some are colored blue, but why? Where are these found, and do they signal something different to ...

Red means stop, green means go, blue means ... private property? Since the 1950s in the United States, red signposts have been the government-issued signal for traffic to stop. There were several ...