During which stage of collapse rescue is the initial assessment and evaluation of the scene conducted?

The initial assessment and evaluation of the scene during a structural collapse rescue is conducted during the size-up stage. This stage is critical because it involves gathering vital information about the structure, the condition of the victims, potential hazards, and the overall situation. A thorough size-up helps rescuers make informed decisions about the necessary resources, strategies, and tactics to employ for a safe and effective rescue operation.

During size-up, rescuers analyze the existing structural integrity, identify any immediate threats, and assess access points for entering the scene. This process allows them to prioritize actions and ensure that the safety of both the rescuers and trapped individuals is maintained throughout the operation. Identifying these factors early in the response can lead to more effective rescue techniques and minimize risks.

The other stages—surface rescue, void rescue, and complete debris removal—are focused on specific actions taken after the initial reconnaissance has occurred. Surface rescue involves immediate assistance to those accessible without additional structural compromise. The void rescue stage concentrates on the search and extraction of victims trapped in voids or spaces created by a collapse. Complete debris removal is the later phase where all debris is cleared once the victim is located. Hence, size-up is distinct because it lays the foundation for all subsequent rescue operations.