A pedestrian merging flow model for stair evacuation

Tomonori Sano*, Enrico Ronchi, Yoshikazu Minegishi, Daniel Nilsson


研究成果: Article査読

31 被引用数 (Scopus)


Pedestrian merging flows on stairs are defined as the confluence of a flow of pedestrians from a stair and pedestrians from each floor of a multi-storey building. This paper introduces a novel simplified mathematical model for the calculation of evacuation times on stairs which takes into account the impact of merging flows. The model allows calculating the impact of merging ratio (people accessing the stair landing from the floor and from the stair) on pedestrian flows and evacuation times at each floor in congested situations. The assumptions and implementation of the model are presented. A hypothetical model case study of a 10-floor building evacuation is investigated, where the results of the new model are compared with the results of an evacuation simulation model using SimTread. Advantages and limitations of the new model in relation to the existing methods adopted for the simulation of merging flows on stairs are discussed.

ジャーナルFire Safety Journal
出版ステータスPublished - 2017 4月 1

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料科学(全般)
  • 安全性、リスク、信頼性、品質管理
  • 物理学および天文学(全般)


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