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| Hauptseite > Publikationsdatenbank > Prolonged clogs in bottleneck simulations for pedestrian dynamics |
| Hauptseite > Publikationsdatenbank > Prolonged clogs in bottleneck simulations for pedestrian dynamics |
| Journal Article | FZJ-2021-01462 |
; ;
2021
North Holland Publ. Co.
Amsterdam
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Please use a persistent id in citations: http://hdl.handle.net/2128/27594 doi:10.1016/j.physa.2021.125934
Abstract: This article studies clogging phenomena using a velocity-based model for pedestrian dynamics. First, a method to identify prolonged clogs in simulations was introduced. Then bottleneck simulations were implemented with different initial and boundary conditions. The number of prolonged clogs were analyzed to investigate the decisive factors causing this phenomenon. Moreover, the time lapse between two consecutive agents passing the exit, and the trajectories of agents were analyzed. The influence of three type of factors was studied: parameters of the spatial boundaries, algorithmic factors related to implementation of the model, and the movement model. Parameters of the spatial boundaries include the width and position of the bottleneck exit. Algorithmic factors are the update methods and the size of the time step. Model parameters cover several parameters describing the level of motivation, the strength and range of impact among agents, and the shape of agents. The results show that the occurrence of prolonged clogs is closely linked to parameters of the spatial boundaries and the movement model but has virtually no correlation with algorithmic factors.
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