Ключевые слова: banner, black, board, caution, clouds, danger, day, electric, emblem, engine, environment, europe, forest, icon, industry, information, locomotive, pleiades, power, rail, railroad, railway, red, road, roadsign, safety, sign, sky, snow, station, stop, sunny, switzerland, symbol, technology, track, traffic, train, transport, transportation, travel, tree, triangle, vaud, vaud canton, vehicle, wagon, warning, white, winter,