What information should be relayed over the radio to establish an effective size-up?

• A. Location, building type, observed hazards, fire/smoke conditions, number of occupants, and resource needs
• B. Color of uniforms
• C. Weather forecast
• D. Traffic conditions

Answer: (A)

When you relay a size-up over the radio, the picture you paint should be a concise scene report that includes location, building type, observed hazards, how the fire and smoke are presenting, the number of occupants you believe are inside, and the resources you think you’ll need. This combination gives incoming units a clear anchor for the incident and informs initial decision-making. Location fixes the exact spot so responders know where to operate and who is accountable. Building type signals structural risks and potential interior layout challenges. Observed hazards alert everyone to immediate dangers such as potential backdrafts, collapses, or hazardous materials. Fire and smoke conditions indicate the current growth, intensity, and visibility, helping determine whether interior attack or defensive posture is appropriate. The occupant count guides priorities for search and rescue and may dictate the need for additional teams or specialized resources. Clear resource needs prompt the right units and equipment to be dispatched early, supporting safety and effectiveness on scene. Details like uniform color aren’t relevant to the incident picture, and weather or traffic conditions, while important for response planning, don’t convey the immediate scene dynamics or needs that establish the size-up.