Journal of the Society of Disaster Information (한국재난정보학회 논문집)

The Korean Society of Disaster Information (한국재난정보학회)
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The Counterflow Speed and Density of a Fire fighter in Corridor

복도에서 소방관에 의한 카운터플로우 발생 시 밀도와 속도 측정

  • Received : 2018.12.14
  • Accepted : 2019.02.27
  • Published : 2019.03.29
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Abstract

Purpose: The purpose of this study is to present data of density and speed through the experiment of the counterflow by firefighter in corridor. Method: Experimental setup including a corridor in building was prepared for measuring data with 1.5m and 2m width. Normal flow and counterflow were created for each. Data were measured using camera and acquired by video image analysis. Results: The counterflow in corridor resulted in increasing average density of about $0.55P/m^2$ and decreasing average movement speed of about 0.61 m/s. These data measured during the time when the counterflow occurred. Conclusion: It was found that counterflow by firefighter in corridor momentary increasing the density and decreasing walking speed of evacuee. Further experiments of the counterflow effect in the total evacuation time are needed.

연구목적:본 연구는 화재 시 소방관에 의한 카운터플로우 현상에 따른 밀도와 속도 실험 데이터를 제시함을 목적으로 한다. 연구방법: 복도에서의 실험을 통하여 데이터를 측정하였다. 측정값을 위하여 복도폭 1.5m 및 2m 각각에 대하여 일반적인 유동상황과 카운터플로우 발생상황을 구현하였다. 이동 시 데이터는 카메라를 통해 측정되었으며, 영상분석을 통해 데이터를 확보하였다. 연구결과: 복도에서의 카운터플로우의 발생은 평균밀도를 약 $0.55P/m^2$ 정도 상승시키고, 정 방향 이동인들의 평균보행속도는 0.61m/s정도가 감소됨을 확인하였다. 이 데이터는 카운터플로우가 발생되는 시점에서 측정되었다. 결론: 카운터플로우 현상의 발생은 순간적으로 밀도를 상승시키고 평균보행속도의 감소를 초래함이 확인되었다. 전체피난에서의 카운터풀로우 영향에 대한 추가실험이 필요하다.

Keywords

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Fig. 1. Experimental setup

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Fig. 2. Photo of experimental setup

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Fig. 3. Camera and marker location at the video record zone

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Fig. 4. Density measurement through video scene

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Fig. 5. Comparison between average movement speed and average density

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Fig. 6. Relationship between average density and movement speed

Table 1. Personal data analysis of participants

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Table 2. Density measurement for each case

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Table 3. Analysis of average densities

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Table 4. Movement speed measurement for each case

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Table 5. Analysis of average movement speed

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Table 6. Comparison between average movement speed and average density

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References

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