Ключевые слова: action, business, concepts, construction, construction barrier, construction site, continuity, creativity, danger, development, equipment, exclusion, forbidden, growth, ideas, industry, inside of, inspiration, isolated, occupation, orange, progress, road, road sign, road warning sign, roadblock, safety, sign, stop, stop sign, symbol, threedimensional shape, traffic, traffic cone, traffic jam, warning sign, work in progress, working, yellow,