Ключевые слова: america, area, arrival, cable, california, car, city, colorful, colors, commute, downtown, electric, exploratorium, irwing, line, modern, muni, passing by, people, public, rail, railway, road, san francisco, service, sf, street, streetcar, system, town, tracks, traffic, tram, tramway, transit, transport, transportation, travel, trolley, united states, urban, vehicle,