Evacuation & Egress Analysis
We perform evacuation and egress analyses to ensure compliance with the Fire and Life Safety Code.
Using egress modeling, we calculate Required Safe Egress Time (RSET), identify bottlenecks, and compare results with Available Safe Egress Time (ASET) to validate tenability—helping architects and engineers protect occupants, streamline AHJ approvals, and minimize redesigns.
We integrate egress simulations with CFD outputs and conduct Fractional Effective Dose (FED) analyses, quantifying visibility, temperature, and toxic gas exposure (CO, CO₂, O₂) over time in accordance with recognized methods. This ensures that your design demonstrates clear, defensible life safety performance.
Our Expertise Include
Code compliance reviews: occupancy classification, exit access/exit/discharge paths, number of exits, maximum travel distances, common path of travel, exit widths, door swings, and stair capacity.
Egress modeling (Pathfinder): crowd flow simulation, evacuation time predictions, identification of bottlenecks, and sensitivity runs for phased or defend-in-place scenarios across various occupant profiles.
Hydraulic calculations: exit capacity, density, flow rates, and clearance times validated against local code criteria.
Tenability analysis: evaluation of the impact of smoke, heat, and toxic gases on survivability, integrated with the smoke control strategy where applicable.
Performance-based solutions: egress simulations for complex geometries and non-prescriptive designs, supported by defensible final designs and engineering narratives.
AHJ liaison: authority-ready reports, responses to comments, and support for Dubai Civil Defense and other AHJ approvals.
Typical Deliverables
Life safety strategy report
Pathfinder modeling and results (videos/screenshots, time-history plots, clearance metrics)
Hydraulic egress calculations and capacity tables
Drawings/mark-ups indicating number and width of exits, exit remoteness, maximum travel distances, common path of travel, door swings, stair capacity, signage, and emergency lighting
AHJ submission package for life safety drawings
