But while it’s rare, you might come across a blue stop sign, either on a United States ... standards and is common throughout most of the world’s roadways. If you have a large, privately ...

Colorado State Patrol troopers say ignoring traffic control signs is leading to more crashes across Colorado ... obey traffic control devices such as stop signs, traffic lights, and flashing ...

Like Japan’s blue stoplights, blue stop signs are a traffic feature primarily reserved for a specific island—Hawaii, to be exact. As Nambisan points out, you may come across them on private ...