Human behavior in a staircase during a total evacuation drill in a high-rise building

Tomonori Sano*, Masanori Yajima, Hiroyuki Kadokura, Ai Sekizawa


研究成果: Article査読

14 被引用数 (Scopus)


Many studies have been conducted on the evacuation behavior on the staircases of buildings, but very little data are available for a situation with many occupants in a crowded high-rise building. Therefore, this study investigated the evacuation behavior of a large number of evacuees on the staircase of a 25-story high-rise building. A total evacuation drill was conducted with 2088 evacuees, and the behavior of 1136 evacuees on the landings of the south staircase was recorded by a video recorder on the ceiling. The relationship between the density and speed of the evacuees on the landings was analyzed from the evacuation data for two situations: without and with merging in the stair flow. The evacuation stair flow in this drill had merging occupants entering from the floors, but no one entered from the lower floors during the latter period of the drill. Therefore, the flow during the latter period was treated as non-merging flow, for which it was observed that, when the staircase was fully crowded, the density on the landings in the moving situation was different from that in the stopped situation. Moreover, the density on the landings was different from that on the treads. Furthermore, in the merging flow, a merging ratio of approximately 50:50 occurred during the congested evacuation.

ジャーナルFire and Materials
出版ステータスPublished - 2017 6月

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • セラミックおよび複合材料
  • 化学 (全般)
  • ポリマーおよびプラスチック
  • 金属および合金


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