Ключевые слова: area, attention, background, beware, black, careful, caution, children, class, classroom, cross, crossing, design, education, family, fine, guard, illustration, info, isolated, kid, male, message, metal, motor, object, parent, pedestrian, people, plate, safe, safety, school, sign, signal, speed, street, student, study, symbol, symbols, take, teenagers, traffic, walk, warning, white, yellow, zone,