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Erschienen in:

14.02.2023

Individual Ascent and Descent Evacuation Performance on Long Stairs Considering the Effects of Stepping Pattern and Light Conditions

verfasst von: Kongjin Zhu, Lizhi Peng, Ning Guo, Bangyu Wang, Xiang Ling, Peng Mei

Erschienen in: Fire Technology | Ausgabe 2/2023

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Abstract

To better understand the movement characteristics of pedestrians on long stairs, a series of individual evacuation experiments on a 12-level staircase were conducted in a public-access building in China. The factors including movement direction, walking preference, stepping pattern and light conditions were considered in the experiments. Pedestrians’ space–time features, individual movement speed, blood pressure (BP) before and after experiments, and the change dynamics of heart rate (HR) during experiments were mainly analyzed and discussed. The mean individual upward speed with double-step pattern and single-step pattern was 0.92 m/s and 0.66 m/s, respectively. The mean individual downward speed with double-step pattern and single-step pattern was 1.01 m/s and 0.82 m/s, respectively. Only systolic BP appeared a significant increase in case of stair-ascending, from 107.26 to 115.02 under the condition of daytime and from 108.39 to 115.64 under the condition of nighttime. The results of HR experienced a sharp increase at the early stage (first around 100 s for stair-ascending and first about 40 s for stair-descending), and then maintained in a very small fluctuation range. The findings in this study can be adopted as input parameters in the evacuation models involving long staircase evacuation. The physiological results (i.e., BP and HR) can be used to evaluate the effort intensity of pedestrians when moving on long stairs.

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Metadaten
Titel
Individual Ascent and Descent Evacuation Performance on Long Stairs Considering the Effects of Stepping Pattern and Light Conditions
verfasst von
Kongjin Zhu
Lizhi Peng
Ning Guo
Bangyu Wang
Xiang Ling
Peng Mei
Publikationsdatum
14.02.2023
Verlag
Springer US
Erschienen in
Fire Technology / Ausgabe 2/2023
Print ISSN: 0015-2684
Elektronische ISSN: 1572-8099
DOI
https://doi.org/10.1007/s10694-023-01380-0

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