Ключевые слова: barrier, blue, closed, colorful, commuter, commuting, cross, danger, fast, fence, gate, intercity, light, line, long, motion, movement, moving, netherlands, passing, power, rail, railroad, railway, red, road, safety, sidewalk, sign, signal, sky, speed, stop, street, tracks, traffic, train, transport, transportation, travel, travelling, waiting, warning, way, white, yellow,