Ключевые слова: abstract, area, away, cobblestone, cobblestones, concept, construction, covering, design, different, downtown, element, fixed, footpath, form, format, full, gehweg, gray, infrastructures, join, many, pattern, paved, pavement, pedestrian, plaster, repetition, road, sealed, sealing, sidewalk, similar, similarity, stone, stones, structure, symbol, texture, urban, zone,