What aspects should an ongoing size-up consider at an incident?

An ongoing size-up is a crucial process that firefighters use to continually assess the incident situation. It allows officers and firefighters to adapt their strategies based on real-time information and changing conditions. The initial plan's effectiveness is a key aspect because it provides insights into how well the established strategy is working and whether adjustments are necessary.

By evaluating the initial plan's effectiveness, responders can assess if the tactics employed are meeting the operational goals, such as controlling the fire, rescuing occupants, or ensuring the safety of personnel. This ongoing evaluation is vital in dynamic environments where conditions can rapidly change, impacting safety and the ability to control the situation effectively.

While other options like firefighter training levels, time of day, and weather conditions can be components of the broader size-up, they do not encapsulate the immediate need to continuously evaluate and adapt the incident strategy based on what is currently occurring. Thus, focusing on the effectiveness of the initial plan ensures that firefighters remain responsive to the ongoing dynamics of the incident.