How should the area for expectant casualties be configured?

The configuration of the area for expectant casualties is critical for effective triage and management during a mass casualty incident. Placing the expectant casualties away from other treatment areas with medic availability is essential because it helps to prevent unnecessary exposure to medical personnel who are focused on more critical patients. This separation allows medical resources to be allocated more efficiently and ensures that those who require immediate care receive it without distraction or congestion from areas designated for patients with more severe needs.

Additionally, establishing a distinct area for expectant casualties helps in managing the psychological aspect of a trauma scene, as it provides a designated space where medical staff can focus solely on those patients who are unlikely to survive, without compromising the care of those with better chances of recovery. This configuration also helps to promote a clear workflow and coordination among medical teams, ensuring that the overall response is organized and effective.

The other choices have their own considerations, such as proximity to transportation or security from public access, but they do not prioritize the critical need for separating expectant casualties from those who can potentially be saved, which is the primary rationale for choosing to have them away from other treatment areas.