Ключевые слова: 30, belgium, benelux, black, cgi, circle, computer generated image, cross out, crossed out, end, europe, gray, grayed out, illustration, isolated, isolated on white, km, limit, maximum, number, prohibition, prohibitory sign, reflection, regulation, regulatory, regulatory sign, restriction, road sign, round, sign, speed, speed limit, textured, traffic regulation, vertical, white, zone,