Ключевые слова: asia, asian, automobiles, automotive, bottleneck, buses, cars, china, city, commercial, congestion, conservation, development, ecology, economy, ecosystem, effect, emission, environment, fuel, fumes, gas, gasoline, global, greenhouse, gridlock, hong, hour, industrial, jam, kong, metropolis, motorists, nation, oil, petrol, petroleum, pollution, public, resource, road, rush, rushhour, traffic, transport, transportation, travel, urban, vehicles, warming,