Ключевые слова: australia, background, caution, choice, concept, course, danger, decision, destination, direction, enter, error, failure, guidance, guide, incorrect, information, metal, mistake, navigation, nobody, not, object, outdoor, post, problem, red, rejection, road, roadsign, roadway, route, serious, sign, signpost, stop, street, symbol, text, traffic, transportation, travel, unable, violation, warning, way, white, wrong,