Ключевые слова: 20, abstract, ahead, alert, background, banner, black, board, build, closeup, color, condition, construct, construction, danger, design, disruption, grunge, highway, icon, industrial, inspiration, job, km, light, limit, old, pavement, progress, repair, road, roadwork, roadworks, safety, sign, site, stop, street, symbol, tools, traffic, transportation, twenty, under, warning, white, work, worker, works, yellow,