Ключевые слова: angle, blue, car, careful, center, clear, cloud, colors, communication, concept, control, culture, danger, direction, highway, holding, landscape, metal, nobody, object, octagon, outdoors, pole, post, red, road, road traffic, roadsigns, rule, safety, shape, signage, signs, sky, slow, speed, stop, stop sign, street, symbol, text, traffic, traffic sign, transportation, urban, vertical, view, warning, white, word,