On validation of SigmaEva pedestrian evacuation computer simulation module with bottleneck flow

Kirik, Ekaterina; Malyshev, Andrey

doi:10.1016/j.jocs.2014.05.002

Cited by 15 publications

(4 citation statements)

References 5 publications

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“…In the latter case, pedestrians are usually forced to bend over, and sometimes they can only crawl on the ground to complete the evacuation process. To improve the level of pedestrian safety, many studies have been performed to investigate crossing flow [1,2], bidirectional flow [3,4], multidirectional flow [5,6], and bottleneck flow [7][8][9]. These different flow forms indicate that the geometry of the facility, direction of pedestrian movement, individual interactions, measurement methods, and even cultural background may contribute to the complexity of pedestrian dynamics [10,11].…”

Section: Introductionmentioning

confidence: 99%

Experimental study of single-file pedestrian movement with height constraints

Ma¹,

Shi²,

Li³

et al. 2020

J. Stat. Mech.

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In the case of a fire, the presence of smoke sometimes makes people bend over and thus prevents them from walking upright. This feature of pedestrian movement in this situation is different from normal walking and affects the dynamics of an evacuation. However, the effect of such kind of motion on pedestrian traffic has not been systematically studied. Therefore, this paper studies the characteristics of pedestrian motion when different heights are available through a series of single-file experiments. In total, five experimental scenarios with available heights of 1.0, 1.2, 1.4, 1.6, and 2.0 m were designed. For each pedestrian in the experiments, their trajectories were extracted to calculate the features of the fundamental diagram. Based on the speed feature, three different states are found in the space-time diagram and the speed distributions are subject to Gaussian distribution in different available heights. However, from the relationship between spatial headway and speed, only two regimes are found, i.e., a free state and a strongly constrained regime, which is consistent with previous research.

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Section: Introductionmentioning

confidence: 99%

Experimental study of single-file pedestrian movement with height constraints

Ma¹,

Shi²,

Li³

et al. 2020

J. Stat. Mech.

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“…This so-called overlapping-oscillation duality is discussed in more detail in [25,26]. These problems that often lead to a "complexification" of the original (elegant) Ansatz of force-based models, may explain the paradigm shift observed lately with the emergence of new first-order models or so called "velocity models" [14,17,[27][28][29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Jamming transitions in force-based models for pedestrian dynamics

et al. 2015

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Force-based models describe pedestrian dynamics in analogy to classical mechanics by a system of second order ordinary differential equations. By investigating the linear stability of two main classes of forces, parameter regions with unstable homogeneous states are identified. In this unstable regime it is then checked whether phase transitions or stop-and-go waves occur. Results based on numerical simulations show, however, that the investigated models lead to unrealistic behavior in the form of backwards moving pedestrians and overlapping. This is one reason why stop-and-go waves have not been observed in these models. The unrealistic behavior is not related to the numerical treatment of the dynamic equations but rather indicates an intrinsic problem of this model class. Identifying the underlying generic problems gives indications how to define models that do not show such unrealistic behavior. As an example we introduce a force-based model which produces realistic jam dynamics without the appearance of unrealistic negative speeds for empirical desired walking speeds.

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“…Pedestrians outflow is widely used for comparison of simulation results with experimental data. In [33], the authors compare the flow in different width of bottlenecks with experimental data as a part of validation process. Outflow is also used in [34] where simulation results from different models are compared with experimental outflow.…”

Section: Validitymentioning

confidence: 99%

Agent-based Approach and Cellular Automata --- a Promising Perspective in Crowd Dynamics Modeling?

Wăs¹,

Porzycki²,

Lubaś³

et al. 2016

Acta Phys. Pol. B Proc. Suppl.

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The paper presents recent trends in the area of Cellular Automata (CA) originated microscopic models of crowd. There are many interesting applications of CA-based models, which incorporate different definitions of floor fields, grouping behavior, building complex scenarios, parallelisation of computing processes, as well as the development of validation and verification tests. Thus, due to the observed rapid development of discrete crowd simulation models, they become a real alternative to force-based ones. It is especially visible in a new kind of crowd-model application, where simulation is required to cooperate with different sensors in real-time regime.

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On validation of SigmaEva pedestrian evacuation computer simulation module with bottleneck flow

Cited by 15 publications

References 5 publications

Experimental study of single-file pedestrian movement with height constraints

Experimental study of single-file pedestrian movement with height constraints

Jamming transitions in force-based models for pedestrian dynamics

Agent-based Approach and Cellular Automata --- a Promising Perspective in Crowd Dynamics Modeling?

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