Ключевые слова: alaska, america, american, arrow, attention, bc, black, british, canada, canadian, car, columbia, country, federal, highway, information, law, mountains, mutcd, north, notice, one, pine, pole, post, right, road, roadside, roadsign, route, rural, sign, signage, signpost, sky, states, symbol, traffic, transport, transportation, trees, united, us, usa, warning, way, white,