Timed egress analysis calculates the time required for building occupants to reach a safe location during an evacuation, based on occupant load, travel distance, and exit capacity.
It verifies that a building’s means of egress meets code-prescribed evacuation timeframes.
Why It’s Needed
This analysis is typically needed for buildings with complex layouts, high occupant loads, or significant height or area, common in high-rise residential, assembly, and institutional buildings, or wherever prescriptive exit requirements are difficult to satisfy directly.
Our Approach
We apply established engineering calculation methods and, where warranted, evacuation modelling software to assess occupant flow, exit widths, and travel distances against code requirements or performance-based evacuation criteria.
Scope of Work
- Occupant load calculations
- Exit capacity and travel distance verification
- Evacuation time calculations
- Identification of egress deficiencies and recommended mitigation measures
Applicable Codes, Standards, and References
- NBC / OBC Means of Egress provisions (Part 3)
- NFPA 101 – Life Safety Code
Benefit
Confirms that occupants can evacuate safely within an acceptable timeframe, supporting code compliance and informing the design of exits, corridors, and stairs.
