architect
building activity
building contractor
business
businessman
busy
caucasian ethnicity
checklist
civil engineer
concrete
construction industry
construction site
construction worker
cooperation
data
document
engineer
engineering
expertise
hardhat
indoors
light
lighting
maintenance engineer
manager
meeting
men
mid adult
occupation
paperwork
people
planning
positive emotion
professional occupation
reflective clothing
safety equipment
showing
site meeting
team
teamwork
togetherness
two people
women
work helmet
working
writing
young adult
young men
young women