When selecting a stairway for evacuation, what critical factor must the Fire Warden consider?

When selecting a stairway for evacuation, it is crucial for the Fire Warden to consider the location of the fire. This decision is fundamental because selecting a stairway that is situated away from the fire minimizes the risk of smoke inhalation and exposure to flames during the evacuation process. Knowing where the fire is located allows the Fire Warden to direct occupants toward a safer exit route, ultimately ensuring a more effective and safer evacuation.

Other factors, such as the odor of smoke or conditions in the stairwell, may be influenced by the location of the fire but do not provide strategic direction for choosing which stairway to use initially. While directions from immediate supervisors are relevant for overall operation management, the immediate and critical factor guiding the selection of the evacuation route lies in understanding the fire's location to ensure safety.