Ключевые слова: abstract, background, commuter, commuting, concept, curve, destinations, empty, europe, european, extreme, high, jungfrau, light, line, metro, mountain, palace, peak, perspective, pursuit, rail, railroad, railway, rapid, road, speed, station, stone, subway, swiss, switzerland, technology, terrain, tourist, track, traffic, trail, train, transit, transport, travel, tube, tunnel, underground, urban, way,