Time Motion Studies for Conduct of Population Monitoring During Functional Radiological Exercises at Community...

Area of Science:

• Public Health
• Emergency Preparedness
• Radiological Health

Background:

• Current radiological emergency response planning relies on estimated service times for population screening and decontamination.
• Accurate capacity estimates are crucial for effective response during radiation events.

Purpose of the Study:

• To validate existing capacity estimates for radiological emergency response.
• To collect time motion data from screening and decontamination stations during exercises.
• To evaluate the impact of observed times on current throughput calculations.

Main Methods:

• Collected time motion observations from 11 functional radiation exercises nationwide.
• Aggregated and analyzed data for population monitoring activities: contamination screening, decontamination, and registration.
• Compared collected times with published estimates in current planning guidance.

Main Results:

• 2,380 validated time observations were analyzed from 11 exercises.
• Contamination screening times showed wide variability, deviating significantly from current guidance (19% below to 267% above estimates).
• Current capacity estimates for contamination screening appear to significantly overestimate actual throughput.

Conclusions:

• Observed aggregate service times provide a more realistic basis for estimating response capacity.
• Revised planning guidance incorporating empirical data is needed for accurate radiological emergency preparedness.