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Accounting for Emergency Response in Building Evacuation: Modeling Differential Egress Capacity Solutions
The impact of firefighter response on the progress of the building evacuation is not typically considered. Responders use of the stairs while occupants are evacuating can significantly increase total building evacuation time. To account for emergency response, this analysis considered whether adding capacity through extra stairwell width was equivalent to providing the same total egress capacity through an additional stairwell. An egress simulation with a counterflow submodel was calibrated against recent fire-drill experimental results to demonstrate the capability of the model to produce meaningful evacuation results. The model was then applied to a hypothetical 50 story office building with 350 occupants per floor. When comparing equivalent total width, additional stairwells outperform wider stairwells from the perspective of evacuation performance, as well as firefighter ascent times. A third stairwell can completely mitigate the effect of firefighter response or even improve the building evacuation time compared to two stairwells with no firefighter response.
Accounting for Emergency Response in Building Evacuation: Modeling Differential Egress Capacity Solutions
The impact of firefighter response on the progress of the building evacuation is not typically considered. Responders use of the stairs while occupants are evacuating can significantly increase total building evacuation time. To account for emergency response, this analysis considered whether adding capacity through extra stairwell width was equivalent to providing the same total egress capacity through an additional stairwell. An egress simulation with a counterflow submodel was calibrated against recent fire-drill experimental results to demonstrate the capability of the model to produce meaningful evacuation results. The model was then applied to a hypothetical 50 story office building with 350 occupants per floor. When comparing equivalent total width, additional stairwells outperform wider stairwells from the perspective of evacuation performance, as well as firefighter ascent times. A third stairwell can completely mitigate the effect of firefighter response or even improve the building evacuation time compared to two stairwells with no firefighter response.
Accounting for Emergency Response in Building Evacuation: Modeling Differential Egress Capacity Solutions
J. D. Averill (author) / W. Song (author)
2007
14 pages
Report
No indication
English
Building Industry Technology , Industrial Safety Engineering , Fire Services, Law Enforcement, & Criminal Justice , Police, Fire, & Emergency Services , Buildings , Evacuating(Transportation) , Egress , Computerized simulation , Emergency response , Firefighters , Emergency responders , Stairwells , Building codes , Computer models , High rise buildings , Counterterrorism , Skyscrapers , Building fires , International building codes
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