Ключевые слова: attention, blue, city, city life, closeup, cloud, concept, copy space, crossing, crossroad, danger, day, electric lamp, electric light, europe, flasher, green, green light, horizontal, illuminated, italy, law, led light, lighting equipment, nobody, orange, orange light, outdoors, pole, red, road, road intersection, road marking, road sign, safety, security system, semaphore, sign, signal, sky, stop, stoplight, street, symbol, traffic, transportation, urban, warning, warning sign,