Ключевые слова: 30, articulated, bus, car, city, climate, coach, commute, electric, environmental, espoo, finland, helsingin seudun liikenne, helsinki, helsinki regional transport authority, hsl, line, new, nobina, outdoors, passenger, public, red, road, speed, street, suomi, traffic, transit, transport, transportation, travel, trunk line, urban, vantaa,