Ключевые слова: cable, car, crossing, danger, electric, environment, equipment, gate, illuminated, industrial, industry, iron, lamp, light, line, metal, motion, move, nobody, outdoor, power, public, rail, railing, railroad, railway, red, regulations, road, safe, safety, security, semaphore, shiny, sign, signal, sky, station, steel, stop, symbol, track, traffic, train, transport, transportation, travel, vehicle, warning, way,