Ключевые слова: animal, attention, background, beware, black, caution, color image, concentration, cross, danger, dangerous, direction, driving, graphic design, hazard, highway, horse, icon, lane, nature, post, previously, red, road, road sign, safety, security, signs, silhouette, slow, stop, street, symbol, traffic, traffic sign, transport, transportation, vehicle, vertical, warning, wildlife,