Ключевые слова: alberta, america, american, arrow, attention, canada, canadian, car, cargo, caution, container, country, drinkwater, federal, freight, green, heavy, highway, industrial, industry, information, left, long freight, manitoba, north, post, rail, railroad, railway, road, roadside, roadsign, route, rural, saskatchewan, sign, signage, signpost, states, symbol, traffic, train, transport, transportation, usa, village, wagon, warning, way,