Ключевые слова: black, british, caution, control, cross, danger, direction, go, historic, history, iron, light, line, mechnical, metal, nostalgia, nostalgic, old, pole, proceed, public, rail, railroad, railway, red, safety, semaphore, sign, signal, signals, sky, station, stop, sunlight, symbol, traffic, train, trains, transport, transportation, travel, uk, vertical, vintage, wait, warning, white,