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On density–flow relationships during crowd evacuation
Computer Animation and Virtual Worlds, 2017AbstractTraffic and pedestrian dynamics communities often use a standard qualitative classification, namely, level of service (LoS), to describe the relationship between the crowd flow and crowd density in an environment. However, this classification has not yet been rigorously studied in the application of synthetic crowds, which are derived using a ...
M. Brandon Haworth +4 more
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Efficient and validated simulation of crowds for an evacuation assistant
Computer Animation and Virtual Worlds, 2012ABSTRACTTo improve safety at mass events, an evacuation assistant that supports security services in case of emergencies is developed. One central aspect is forecasting the emergency egress of large crowds in complex buildings. This requires realistic models of pedestrian dynamics that can be simulated faster than real‐time by using methods applied in ...
Armel Ulrich Kemloh Wagoum +4 more
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LifeBelt: Silent Directional Guidance for Crowd Evacuation
2009 International Symposium on Wearable Computers, 2009The effectiveness of an evacuation process in an emergency situation is heavily dependent on the understanding of the dynamics of crowds. Evidence has been delivered supporting the hypothesis that crowd behavior is self referential in the sense that movement patterns of individuals constitutes crowd movement, which in turn impacts the behavior of ...
Alois Ferscha, Kashif Zia
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Coordinated Robot-Assisted Human Crowd Evacuation
2018 IEEE Conference on Decision and Control (CDC), 2018In this paper, we study the coordinated robot-assisted human crowd evacuation problem, and our aim is to optimally deploy robots and choose proper human-robot interactions to evacuate human crowd in an efficient and safe manner. For such a purpose, we propose a stochastic differential equation model to capture the motion of each individual pedestrian ...
Zhiyu Liu, Bo Wu 0005, Hai Lin 0002
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The Computational Paradigm of Cellular Automata in Crowd Evacuation
International Journal of Foundations of Computer Science, 2015During last decades, Cellular Automata (CAs) as bio-inspired parallel computational tools have been proven rather efficient and robust on modeling and simulating many different physical processes and systems and solving scientific problems, in which global behavior arises from the collective effect of simple components that interact locally.
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Feedback Control of Crowd Evacuation in One Dimension
IEEE Transactions on Intelligent Transportation Systems, 2010This paper studies crowd models in one dimension. The focus of this paper is on the design of nonlinear feedback controllers for these models. Two different models are studied where dynamics are represented by a single partial differential equation (PDE) in one case and a system of hyperbolic PDEs in another, and control models are proposed for both ...
Wadoo, Sabiha A., Kachroo, Pushkin
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Design of evacuation strategies with crowd density feedback
Science China Information Sciences, 2015A second-order stochastic model describing a large scale crowd is formulated, and an efficient evacuation strategy for agents in complex surroundings is proposed and solved numerically. The method consists in reshaping the crowd contour by making use of the crowd density feedback that is commonly available from geolocation technologies, and Kantorovich
Luyuan Qi, Xiaoming Hu 0001
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Nonlinear effects in examples of crowd evacuation scenarios
17th International IEEE Conference on Intelligent Transportation Systems (ITSC), 2014Severe accidents with many fatalities have occurred when too many pedestrians had to maneuver in too tight surroundings, as during evacuations of mass events. This demonstrates the importance of a better general understanding of pedestrians and emergent complex behavior in crowds.
Jens Starke +6 more
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Evaluating and Optimizing Evacuation Plans for Crowd Egress
IEEE Computer Graphics and Applications, 2017Evacuation planning is an important and difficult task in building design. The proposed framework can identify optimal evacuation plans using decision points, which control the ratio of agents that select a particular route at a specific spatial location.
Vinícius J. Cassol +8 more
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Grouping Behaviour in AmI-Enabled Crowd Evacuation
2011Grouping behaviour occurs often in crowd evacuation. On the one hand, groups are needed for efficient evacuation. On the other hand, large uncontrolled groups (herds) may cause clogging and increase panic. The mechanisms of emergence of leaders and groups in complex socio-technical systems with intelligent technical components are not well understood ...
Alexei Sharpanskykh, Kashif Zia
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