Ключевые слова: adult, color image, construction industry, construction site, construction worker, cooperation, development, discussion, engineer, environmental, equipment, examining, expertise, factory, happiness, hardhat, headwear, horizontal, industry, land, level, manager, mature adult, measuring, men, meter, mid adult, monitor, occupation, officer, one person, outdoors, people, place of work, planning, professional occupation, protection, safety, setting, sound, steel, surveyor, technician, technology, topography, vertical, work tool, working,