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Financial price dynamics and pedestrian counterflows: a comparison of statistical stylized facts
(American Physical Society, 2013-01)
We propose and document the evidence for an analogy between the dynamics of granular counterflows in the presence of bottlenecks or restrictions and financial price formation processes. Using extensive simulations, we find ...
Statistical fluctuations in pedestrian evacuation times and the effect of social contagion
(American Physical Society, 2016-08)
Mathematical models of pedestrian evacuation and the associated simulation software have become essential tools for the assessment of the safety of public facilities and buildings. While a variety of models is now available, ...
Beyond the faster-is-slower effect
(American Physical Society, 2017-11)
The "faster-is-slower" effect arises when crowded people push each other to escape through an exit during an emergency situation. As individuals push harder, a statistical slowing down in the evacuation time can be achieved. ...
Behavioral effects in room evacuation models
(Elsevier Science, 2017-08-01)
In this work we study a model for the evacuation of pedestrians from an enclosure considering a continuous space substrate and discrete time. We analyze the influence of behavioral features that affect the use of the empty ...
Simulating competitive egress of noncircular pedestrians
(American Physical Society, 2017-04)
We present a numerical framework to simulate pedestrian dynamics in highly competitive conditions by means of a force-based model implemented with spherocylindrical particles instead of the traditional, symmetric disks. ...
The role of panic in the room evacuation process
(World Scientific, 2006-03)
In the present work we studied the room evacuation problem using the social force model introduced by Helbing and coworkers. The "faster is slower" effect induced by panic was analyzed. It could be explained in terms of ...
A re-examination of the role of friction in the original Social Force Model
(Elsevier Science, 2020-01)
The fundamental diagram of pedestrian dynamics gives the relation between the density and the flow within a specific enclosure. It is characterized by two distinctive behaviors: the free-flow regime (for low densities) and ...
Social Force Model parameter testing and optimization using a high stress real-life situation
(Elsevier Science, 2021-01)
The escape panic version of the Social Force Model (SFM) is a suitable model for describing emergency evacuations. In this research, we analyze a real-life video, recorded at the opening of a store during a Black Friday ...
A counterintuitive way to speed up pedestrian and granular bottleneck flows prone to clogging: can 'more' escape faster?
(IOP Publishing, 2018-08)
Dense granular flows through constrictions, as well as competitivepedestrian evacuations, are hindered by a propensity to form clogs. We use simulations of model pedestrians and experiments with granular disks to explore ...
Experimental proof of faster-is-slower in systems of frictional particles flowing through constrictions
(American Physical Society, 2015-12)
The "faster-is-slower" (FIS) effect was first predicted by computer simulations of the egress of pedestrians through a narrow exit [Helbing D, Farkas I J, Vicsek T, Nature 407:487-490 (2000)]. FIS refers to the finding ...