a construction worker, wearing a blue shirt and khaki pants, holds a yellow hard hat in his right hand and a rolledup set of

construction worker hard hat safety blueprints plans building scaffolding site project engineer architect contractor developer supervisor foreman professional trade industry labor skilled concrete steel beams framing foundation roofing masonry electrical plumbing hvac carpentry painting landscaping design engineering architecture management supervision hazard risk progress completion future development wearing blue shirt khaki pants holds yellow right hand rolledup set left stands front partially constructed build left build generated