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A pedestrian merging flow model for stair evacuation

Sano, Tomonori LU ; Ronchi, Enrico LU ; Minegishi, Yoshikazu and Nilsson, Daniel LU (2017) In Fire Safety Journal 89. p.77-89
Abstract
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... (More)
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. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Merging flows, Pedestrian, evacuation, simulation, stairs, building
in
Fire Safety Journal
volume
89
pages
77 - 89
publisher
Elsevier
external identifiers
  • scopus:85014776146
  • wos:000399520100008
ISSN
0379-7112
DOI
10.1016/j.firesaf.2017.02.008
language
English
LU publication?
yes
id
5b261e54-f3ff-45ab-bc88-41ca5d433430
date added to LUP
2017-03-10 10:15:49
date last changed
2018-08-19 04:33:11
@article{5b261e54-f3ff-45ab-bc88-41ca5d433430,
  abstract     = {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.},
  author       = {Sano, Tomonori and Ronchi, Enrico and Minegishi, Yoshikazu and Nilsson, Daniel},
  issn         = {0379-7112},
  keyword      = {Merging flows,Pedestrian,evacuation,simulation,stairs,building},
  language     = {eng},
  pages        = {77--89},
  publisher    = {Elsevier},
  series       = {Fire Safety Journal},
  title        = {A pedestrian merging flow model for stair evacuation},
  url          = {http://dx.doi.org/10.1016/j.firesaf.2017.02.008},
  volume       = {89},
  year         = {2017},
}