Ключевые слова: 2021, alberta, building, calgary, canada, canadian, city, clean, commute, commuter, ctrain, downtown, electric, electrical, light rail, lrt, mass transit, modern, north america, platform, public, public transport, rail, railroad, railway, road, station, street, streetcar, track, tracks, traffic, train, tram, tramway, transit, transport, transportation, travel, urban,