Ключевые слова: activity, architect, architecture, background, banner, blue, builder, building, car, civil, concept, concrete, construction, crane, engineer, engineering, equipment, excavator, hardhat, heavy, helmet, highway, industrial, infrastructure, inspection, isolated, job, machine, machinery, plan, professional, project, renovation, road, roadwork, safety, sign, site, space, tool, traffic, truck, urban, vehicle, view, work, worker, workplace,