Ключевые слова: barricade, blurred, boundary, car, caution, closed barrier, control, cross, cross of saint andrew, crux decussata, danger, entrance, entry, exit, gambling, gate, gateway, guard, locomotive, motion, motion blur, protection, rail, railroad, railroad crossing, rails, railway, red light, road, safety, saltire, sign, signal, st andrew cross, steel, stop, street, striped, symbol, track, traffic, traffic lights, train, transport, transportation, waiting, warning, warning label, warning signal, way,