Abstract
The purpose of this study was to collect and analyze individual unimpeded stair ascent and descent walk speeds for the Korean population. To collect these data, a full-scale experiment was conducted in a 50-storey residential building in Korea involving 30 male and 30 female participants with an average age of 23.4 years. Each participant was required to ascend 50 floors and after a suitable rest period was then required to descend 50 floors using the stairs. Arrival times on each floor were recorded using video cameras, allowing floor by floor walk speeds to be determined and to assess whether fatigue affected the descent/ascent. The average descent speed for the male and female population was 0.83 m/s and 0.74 m/s, respectively, while the average ascent speed was 0.66 m/s and 0.48 m/s. However, there was no significant relationship between body mass index and stair walk speed or unimpeded horizontal walk speed and stair walk speed. During the descent, 50% of the population displayed a decrease in the walk speed over the final half of the descent with a maximum decrease of some 19%. However, some 50% of the population increased their travel speed during the final half of the descent. During the ascent, all participants decreased their speed over the first 20 floors by an average of approximately 60%. Implications of these findings for evacuation modeling/simulation are discussed.
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Acknowledgments
This work was supported by a grant from Human-Induced Disaster Prevention Technology Development Program funded by the National Emergency Management Agency of Korea (2012-NEMA05-014-01030000-2012). This work was also supported by National Research Foundation of Korea Grant funded by the Korean Government, Ministry of Education, Science and Technology (NRF-2011-357-D00261) which enabled Choi to work with Galea.
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Originally published online only in Journal of Fire Protection Engineering, published by SAGE (http://jfe.sagepub.com/content/early/recent).
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Choi, JH., Galea, E.R. & Hong, WH. Individual Stair Ascent and Descent Walk Speeds Measured in a Korean High-Rise Building. Fire Technol 50, 267–295 (2014). https://doi.org/10.1007/s10694-013-0371-4
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DOI: https://doi.org/10.1007/s10694-013-0371-4