• Nougat@kbin.social
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    10 months ago

    https://mutcd.fhwa.dot.gov/services/publications/fhwaop02084/index.htm

    The use of red on signs is limited to stop, yield, and prohibition signs.
    A white background indicates a regulatory sign;
    yellow conveys a general warning message;
    green shows permitted traffic movements or directional guidance;
    fluorescent yellow/green indicates pedestrian crossings and school zones;
    orange is used for warning and guidance in roadway work zones;
    coral is used for incident management signs;
    blue indicates road user services, tourist information, and evacuation routes;
    and brown is for guidance to sites of public recreation or cultural interest.