Ключевые слова: 20, area, asphalt, auto, barcelona, black, child, children, circle, city, concept, crossing, crosswalk, drive, empty, icon, illustration, image, kids, kilometers, limit, line, marking, miles, number, paint, painted, pattern, pedestrian, people, red, restriction, road, safety, school, sign, slow, speed, street, symbol, town, traffic, transport, transportation, twenty, urban, warning, way, white, zebra,