Ключевые слова: activity, block, caution, cement, construction, contractor, day, enclosure, equipment, exterior, floor, gas, infrastructure, man, material, outdoors, pavement, paving, pipes, professional, public, renewal, repair, road, roadwork, roadworks, rock, rubber, safety, sidewalk, site, square, stone, street, surface, texture, tile, urban, wall, work, worker, works, yellow,