What is the second part of the safety zone calculation formula after determining Y?

The second part of the safety zone calculation formula requires taking the previously determined Y value and multiplying it by 2, and then again by 2, which effectively means multiplying Y by 4. This approach helps ensure that the safety zone is adequately sized to provide protection from potential fire behavior. A safety zone must be sufficiently large to accommodate personnel and equipment, taking into account factors such as fire intensity, potential for spotting, and other safety considerations.

Multiplying Y by 4 is based on the understanding that fire behavior can be unpredictable. The larger size helps mitigate risks by providing a buffer against potential fire spread and heat exposure, ensuring that individuals in the safety zone can operate safely. This multi-factor approach reinforces that safety is paramount when determining protective areas in wildland fire scenarios.