Final answer:
Below grade areas in shelters without sprinkler system protection should be used for non-essential functions or storage to ensure occupant safety. Adequate fire suppression systems are vital, as demonstrated by safety protocols and building codes.
Step-by-step explanation:
Below grade areas in shelters that are not protected throughout the premises by a sprinkler system should be used for non-essential functions or storage, rather than for occupancy. This recommendation stems from safety concerns, as areas not covered by a sprinkler system present a higher risk in case of a fire. Occupants in non-sprinkler protected areas might have difficulty evacuating in emergency situations, and the risk to life safety is significantly increased. When creating their own shelters, some individuals might design areas hidden by secret passageways. However, these areas might be at greater risk during a fire if they are below grade and lack adequate fire suppression systems, such as sprinklers. Therefore, it's crucial to understand the proper safety protocols and building codes when planning the use of below grade areas. It is similar to how prairie dogs create burrows, which, while serving as protection and shelter from predators, may affect other aspects of the environment, such as plant growth. In human-made shelters, prioritizing safety systems is essential to ensure the protection of the occupants and the environment.