Ключевые слова: area, block, brick, built, cement, city, cobble, cobblestone, construction, development, flag, flagstone, footpath, gray, improvement, industrial, industry, landscaping, many, masonry, material, modernization, new, outdoor, pallet, park, paved, pavement, paving, pedestrian, public, reconstruction, redevelopment, rock, row, sidewalk, silicate, site, slab, solid, stack, stacked, stone, street, surface, tile, tiled, urban, walkway, way,