What factors affect occupant load calculations in a building?

• A. Occupant type and age
• B. The weather and time of day
• C. The color of walls
• D. Occupant type, use, area, and egress capacity

Answer: (D)

Occupant load calculations are about predicting how many people a space must safely accommodate and evacuate. The factors that determine this are who uses the space (occupant type), what activity is happening (use), how large the space is (area), and how many people can exit safely and quickly (egress capacity). Codes assign a specific occupant density for each use type, so you multiply that density by the area to get the base load, then ensure there’s enough egress capacity to handle that many people in an emergency. Weather and time of day might influence behavior, but they don’t change the calculated occupant load. Wall color has no effect on occupancy calculations.