Risk-informed or performance-based design is best described as:

• A. A rigid checklist only approach
• B. A design approach that ignores risk
• C. A design approach using risk assessment to justify non-prescriptive solutions that still meet life-safety objectives
• D. A purely aesthetic design method

Answer: (C)

The idea behind risk-informed or performance-based design is to use a structured assessment of risk to guide design decisions and justify non-prescriptive solutions that still achieve life-safety goals. Instead of blindly following a fixed checklist, designers evaluate how a real fire would behave in a specific occupancy, consider the likelihood and consequence of different scenarios, and show that the chosen design meets the required protection of occupants and property.

This approach relies on performance criteria and analysis—such as fire modeling, scenario testing, and reliability considerations—to demonstrate that safety objectives are met even if the solution isn’t the exact one prescribed by a standard. It allows tailoring to factors like occupant demographics, use, ventilation, and potential hazards, while still ensuring that the overall life-safety objectives are achieved.

It isn’t a rigid checklist, and it isn’t simply about aesthetics. It explicitly considers risk and performance, rather than ignoring risk or prioritizing appearance alone.