Ключевые слова: america, arrow, black, board, caution, concept, crossroads, decision, direction, directional, guidance, guide, icon, information, label, law, left, message, metal, notice, object, one, one way, outdoor, pointer, pointing, pole, post, right, road, roadside, route, sign, signpost, street, symbol, text, traffic, transportation, two, urban, usa, warning, way, white,