Ключевые слова: bar, bus, caution, city, clamp, commuter, empty, equipment, fall, grip, handle, handrail, hang, hold, industrial, inside, interior, journey, line, loop, metro, modern, move, part, passenger, plastic, pole, public, rail, railroad, rubber, safe, safety, security, stable, stand, steel, subway, system, traffic, train, tram, transit, transport, transportation, travel, trip,