Ключевые слова: america, american, arrow, billboard, black, blue, board, caution, clouds, communication, concept, crossroads, direction, directional, guidance, guidepost, highway, icon, information, journey, label, message, metallic, notice, one, outdoor, pointer, road, roadside, route, sign, signage, signal, signpost, sky, states, street, symbol, text, traffic, transportation, turn, united, urban, us, usa, warning, way, white,