Ключевые слова: 2029 years, 3039 years, adult, adults only, architecture, bluecollar worker, building contractor, built structure, construction industry, construction machinery, construction site, construction worker, day, development, employment and labor, engineering, equipment, hardhat, helmet, industry, machinery, men, occupation, one person, outdoors, place of work, professional occupation, protective glove, protective workwear, reflective clothing, safety, transportation,