Ключевые слова: asphalt, bump, bumpy, bumpy road, children, city, cross, curb, dangerous, direction, edge, elevate, gray, jump, line, mosaic, outdoor, park, pattern, pavement, pedestrian, playground, prevention, raised, road, safe, safety, school, sidewalk, speed, stone, street, surface, texture, textured, town, track, traffic, transport, transportation, urban,