Ключевые слова: afficient, alternative, asphalt, auto, black, building, business, car, carpool, change, city, climate, commute, compact, conservation, conserve, diesel, economy, efficient, empty, energy, environment, executive, fuel, gas, hybrid, job, line, lot, morning, new, office, open, outdoor, paint, park, parking, pavement, professional, safe, save, sign, solar, space, symbol, travel, urban, vacant, white, work,