In Lloyd Layman's 5-step size-up process, what is the first step?

In Lloyd Layman's 5-step size-up process, the first step is "Facts." This initial stage emphasizes the importance of gathering and assessing the factual information about the incident at hand. It involves collecting data regarding the environment, conditions, available resources, and any immediate threats present. By focusing on facts, fire officers can gain a clear and objective understanding of the situation, which is crucial for effective incident management and ensuring safety.

Starting with facts sets a solid foundation for the subsequent steps in the size-up process, which revolve around interpreting the situation, making decisions, assessing probabilities, and ultimately applying strategic interventions. This systematic approach ensures that actions taken during an emergency are based on the most accurate and reliable information available, thus enhancing the overall effectiveness of the response.