What would it actually take to help this many people?
Drag the slider to a hypothetical number of people affected by an emergency and see roughly what medical, power, shelter, hazmat, and search-and-rescue response that scale would call for — built from real emergency-management ratios where they exist, and clearly-labeled planning assumptions where they don't.
Hypothetical scenario input — not a live event, request, or ERNA capacity claim.
Sized to your scenario, category by category.
Each card starts from a real, cited ratio where one exists, then applies an adjustable planning assumption to bridge from "people affected" to "resources needed" — drag any slider to see how the estimate shifts.
Medical / ALS-BLS
Real standardStandard ambulance crewing is 2 EMS personnel per unit — that part of this card isn't adjustable.
Mass Care / Shelter
Real standardShelter space is fixed at FEMA P-361's real minimum of 5 sq ft per person — not adjustable, and before mobility equipment, caregivers, or other access needs.
Engineering / Power
Assumption-basedThere's no single government-set ratio for people-per-generator — it depends entirely on the load (shelter lighting vs. medical equipment vs. water pumping), so this whole card is an adjustable assumption.
Hazmat / Radiological
Real standardMinimum entry team size is fixed at 4 (OSHA 1910.120 / NFPA 472's "two in, two out" rule: 2 entry, 2 standby) — not adjustable.
Search & Rescue
Real standardFEMA Type 1 US&R Task Forces run 70 personnel; each can split into two Type 3 Task Forces of 35 for round-the-clock shifts — the personnel-per-task-force figures aren't adjustable.
This calculator is a planning illustration, not a claim about ERNA's actual network capacity or a substitute for an Incident Action Plan. Real dispatch decisions are made by the requesting agency and its Incident Commander, using real-time information the day of the event.
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Sign up to see your estimate →Illustrative estimate based on the response sizing above — not a quote. Actual cost or compensation depends on scope, duration, and the provider agreements finalized after sign-up.