WORKSHEET FOR ASSIGNING SPECIFIC STRUCTURES TO
This table may be used as a guide for determining the appropriate performance group allocation for specific structures that have unique characteristics.
WORKSHEET FOR ASSIGNING SPECIFIC STRUCTURES TO PERFORMANCE GROUPS
RISK FACTORS RELATIVE LEVEL OF RISK
FOR SPECIFIC STRUCTURE
Occupant Load. Maximum number of persons permitted to be in the structure or a portion of the structure. Duration. Maximum length of time that the structure is significantly occupied. Sleeping. Do people normally sleep in the building? Occupant Familiarity. Are occupants expected to be familiar with the building layout and means of egress? Occupant Vulnerability. What percentage of occupants, employees or visitors is considered to comprise members of a vulnerable population? Dependent Relationships. Is there a significant percentage of occupants or visitors who are expected to have relationships that may delay egress from the building? HAZARD FACTORS Nature of the Hazard. What is the nature of the hazard, and what are its impacts on the occupants, the structure and the contents? Internal or External Hazard. Is the hazard likely to originate internally or externally or both? LEVEL OF IMPORTANCE Population. Are large numbers of people expected to be present? Essential Facilities. Is the structure required for emergency response or post-disaster emergency treatment, utilities, communications or housing? Damage Potential. Is significant risk of widespread and/or long-term injuries, deaths or damage possible from the failure of the structure? Community Importance. Is the structure or its use largely responsible for economic stability or other important functions of the community? SPECIFIC ADJUSTMENTS Are the design performance levels adequate and appropriate for the specific structure? OVERALL RISK, HAZARD, IMPORTANCE FACTORS & PERFORMANCE GROUP ASSIGNMENT