Ключевые слова: background, bus, car, carbon, center, city, co2, commuters, concept, concrete, crossroad, day, driving, emissions, environment, front, gating, gridlock, high, highway, hour, jam, junction, lots, many, modern, motion, motorway, moving, people, polluted, pollution, private, public, queue, road, scene, slow, tail, tailgating, taxi, theme, traffic, transport, travel, urban, vehicle, warming, way,