Ключевые слова: america, aware, blue, blue sky, california, caution, city, county, danger, day, dead end, destination, diamond shape, downtown, hanging, highland, highway, light, name, nobody, outdoors, outside, post, red, red light, road signaling, road signalling, semaphore, sign, signal, stop, stop light, street, street names, street sign, street signs, summer, sunlight, sunny, tourism, traffic, traffic light, traffic lights, traffic signal, transportation, travel, united states, urban, urban scenes, usa,