Overall and Local Movement Speeds During Fire Drill Evacuations in Buildings up to 31 Stories

  • R. D. Peacock
  • B. L. Hoskins
  • E. D. Kuligowski
Conference paper

Abstract

The time that it takes an occupant population to reach safety when descending a stairwell during building evacuations is typically described by measureable engineering variables such as stairwell geometry, speed, density, and pre-evacuation delay. In turn, engineering models of building evacuation use these variables to predict the performance of egress systems for building design, emergency planning, or event reconstruction. As part of a program to better understand occupant movement and behavior during building emergencies, the Building and Fire Research Laboratory at the National Institute of Standards and Technology (NIST) has been collecting stairwell movement data during fire drill evacuations of office buildings. These data collections are intended to provide a better understanding of this principal building egress feature and develop a technical foundation for future codes and standards requirements. To date, NIST has collected fire drill evacuation data in eight office building occupancies ranging from six to 62 stories in height that have included a range of stairwell widths and occupant densities.

While average movement speeds in the current study of 0.48 m/s ± 0.16 m/s are observed to be quite similar to the range of literature values, local movement speeds as occupants traverse down the stairwell are seen to vary widely within a given stairwell, ranging from 0.056 m/s to 1.7 m/s.

Keywords

Obesity Smoke Riser 

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • R. D. Peacock
    • 1
  • B. L. Hoskins
    • 1
  • E. D. Kuligowski
    • 1
  1. 1.National Institute of Standards and TechnologyGaithersburgUSA

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