Final answer:
In the face of multiple simultaneous incidents, pre-determined response priorities are outlined in an Emergency Operations Plan (EOP) which includes the application of triage principles and coordinated response protocols like ICS and NIMS.
Step-by-step explanation:
When multiple incidents occur simultaneously, response priorities are pre-determined in an Emergency Operations Plan (EOP). An EOP lays out the guidelines and protocols for handling emergencies, including the prioritization of incidents based on factors such as immediate threat to life, health, property, and the environment. By having plans like the Incident Command System (ICS) and National Incident Management System (NIMS) integrated into an EOP, emergency responders are able to manage resources and coordinate their response efforts effectively, ensuring that the most critical incidents are addressed first.
For example, if two incidents happen at the same time - a hazardous materials spill and a small kitchen fire in a separate location - the hazardous materials spill would likely be prioritized due to its potential for widespread harm and the need for specialized response teams. This is the sort of scenario where triage principles would be applied to determine response priority.