Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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A Experimental Research on Stair Ascent Evacuation Support for Vulnerable People

안전약자 상층 대피 지원에 관한 실험적 연구

  • Lee, Ji Hyang (Safety Research Division, National Disaster Management Research Institute) ;
  • Lee, Hyo Jeong (Safety Research Division, National Disaster Management Research Institute) ;
  • Kwon, Jin Suk (Safety Research Division, National Disaster Management Research Institute) ;
  • Park, Sang Hyun (Safety Research Division, National Disaster Management Research Institute)
  • 이지향 (국립재난안전연구원 안전연구실) ;
  • 이효정 (국립재난안전연구원 안전연구실) ;
  • 권진석 (국립재난안전연구원 안전연구실) ;
  • 박상현 (국립재난안전연구원 안전연구실)
  • Received : 2018.08.02
  • Accepted : 2018.12.19
  • Published : 2019.02.28
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Abstract

This study is aiming to compare stair ascent transportation speed and physical burden of evacuation supporters according to the types of stair ascent transportation for vulnerable people experimentally. In this study, we measured heart rate of the supporters to indicate physical burden during the transportation. The subjects of this experiment were male students, age of 20-26. Experimental conditions were the ways of stair transportation and the weight of vulnerable people. The types of stair transportation were giving a piggyback ride and carrying a wheelchair. Each experimental trial was video-recorded for measurement of ascent speed and observing supporters movement. As a result of the experiment, as for the ascent transportation speed by piggyback ride from the first floor to the fourth floor, the average speed of the light case is 31 seconds and for the heavy case is 43 seconds. When it comes to the average speed of wheelchair transportation's average speed the light case is 1 minute and 11 seconds and the heavy case is 1 minute and 49 seconds. Therefore, it was indicated that when the weight of a vulnerable people is lighter, the transportation speed is faster. The heart rates of evacuation supporters are different depending on transportation methods or individual's condition but as repetitive transportation increases, they tend to reach the maximum heart rates.

Keywords

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Fig. 1. The shape of the stairs used the experiment.

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Fig. 2. Shape of wheelchair used for evacuation support.

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Fig. 3. Procedure of evacuation support experiment.

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Fig. 4. Measurement section of evacuation required time.

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Fig. 5. circumstances at the time of the experiment.

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Fig. 6. Average evacuation rate by evacuation support method.

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Fig. 7. Evacuation required time by floor-giving a piggyback ride.

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Fig. 8. Evacuation required time by floor-carrying a wheelchair.

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Fig. 9. Subject's heart rate of giving a piggyback ride.

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Fig. 11. Evacuation rate due to rising stairs-giving a piggyback ride.

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Fig. 12. Evacuation rate due to rising stairs-carrying a wheelchair.

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Fig. 10. Subject's heart rate of carrying a wheelchair.

Table 1. Attribute of subject

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Table 2. Measurement section and measurement timing

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Table 3. Time required for evacuation support

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Table 4. Change in average speed by repeated trials

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References

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