Artículo
Improving competitive evacuations with a vestibule structure designed from panel-like obstacles in the framework of the Social Force Model
Fecha de publicación:
02/2022
Editorial:
Elsevier Science
Revista:
Safety Science
ISSN:
0925-7535
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
It has been shown that placing an obstacle in front of an exit door has proven to be a successful method to improve pedestrian evacuations. In this work, we will focus on the space limited by the exit and the obstacles (i.e. the vestibule structure). We performed numerical simulations to analyze two different types of vestibules: the two-entry vestibule (which consists of a single panel-like obstacle) and the three-entry vestibule (which consists of two panel-like obstacles). In the former, we studied the effects of varying the walls’ friction coefficient κw and the distance from the obstacle to the exit door d. In the latter, we varied the space between the two panels (gap). We found that the three above mentioned parameters control the vestibule's density, which subsequently affects the evacuation flow (fundamental diagram). We have also found that reducing the distance d or increasing the friction facilitates the formation of blocking clusters at the vestibule entries, and hence, diminishes the density. If the density is too large or too low, the evacuation flow is suboptimal, whereas if the density is around 2p/m2, the flow is maximized. Our most important result is that the density (and therefore the evacuation flow) can be precisely controlled by κw, d, and the gap. Moreover, the three-entry vestibule produced the highest evacuation flow for specific configurations of the gap and the distance from the panels to the door.
Palabras clave:
PANEL-LIKE OBSTACLE
,
PEDESTRIAN EVACUATION
,
VESTIBULE
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IFIBA)
Articulos de INST.DE FISICA DE BUENOS AIRES
Articulos de INST.DE FISICA DE BUENOS AIRES
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Sticco, Ignacio Mariano; Frank, Guillermo Alberto; Dorso, Claudio Oscar; Improving competitive evacuations with a vestibule structure designed from panel-like obstacles in the framework of the Social Force Model; Elsevier Science; Safety Science; 146; 105544; 2-2022; 1-12
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