The Mystery of the Blue Stop Sign
That blue stop sign isn’t a glitch in reality, but it isn’t there by accident either. On public roads in the U.S., stop signs are required to be red by federal standards. Blue versions usually live on private property—business parks, gated communities, or long driveways—where owners are free to bend the visual rules, even if the law doesn’t officially recognize the color. Yet the responsibility on you as a driver doesn’t change. A blue stop sign still marks a real…