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Collective Dynamics
13 Publications


  • Oppilatio+ - A data and cognitive science based approach to analyze pedestrian flows in networks

    Biedermann, Daniel H.; Kielar, Peter M.; Riedl, Andreas M.; Borrmann, André (2017)
    Public transport services are a widespread and environmentally friendly option for mobility. In the majority of cases, passengers of public transport services will have to walk from a subway, train, or bus station to their desired travel destination. In an urban environment with a network of narrow streets, this can lead to crowd congestions during rush hour, due to the fact that passengers tend to arrive in waves. In order to monitor and analyze such crowding behavior, city planners, crowd m...

    The Superposition Principle: A Conceptual Perspective on Pedestrian Stream Simulations

    Seitz, Michael J.; Dietrich, Felix; Köster, Gerta; Bungartz, Hans-Joachim (2016)
    Models using a superposition of scalar fields for navigation are prevalent in microscopic pedestrian stream simulations. However, classifications, differences, and similarities of models are not clear at the conceptual level of navigation mechanisms. In this paper, we describe the superposition of scalar fields as an approach to microscopic crowd modelling and corresponding motion schemes. We use this background discussion to focus on the similarities and differences of models, and find that ...

    On the Boate Kiss Fire and the Brazilian Safety Legislation - What we can learn

    Braga, Henrique Costa; Moita, Gray Farias (2017)
    Brazil was recently the scenario of a great tragedy in the fire at Kiss nightclub, where 242 people were killed. The starting point of the fire was the use of a pyrotechnic device over an acoustic coating made of polyurethane foam. The causalities were caused mainly by asphyxia and inhalation of toxic gases in a very fast smoke expansion. However, several additional causes contributed to the amount of damage and human losses. The accident investigations emphasized the necessity to discuss det...

    Impact of Synchronised Flow in Oversaturated City Traffic on Energy Efficiency of Conventional and Electrical Vehicles

    Hemmerle, Peter; Koller, Micha; Hermanns, Gerhard; Rehborn, Hubert; Kerner, Boris S.; Schreckenberg, Michael (2016)
    In this study of city traffic, we show that empirical synchronised flow patterns, which have been revealed recently in oversaturated traffic, exhibit considerable impact on the energy efficiency of vehicles. In particular, we have found out that energy consumption in oversaturated city traffic can decrease considerably when the oversaturated city traffic consists of synchronised flow patterns rather than consisting of moving queues of the classical traffic flow theory at traffic signals. Usin...

    Age and Group-driven Pedestrian Behaviour: from Observations to Simulations

    Gorrini, Andrea; Vizzari, Giuseppe; Bandini, Stefania (2016)
    The development of pedestrian simulation systems requires the acquisition of empirical evidences about human behaviour for sake of model validation. In this framework, the paper presents the results of an on field observation of pedestrian behaviour in an urban crowded walkway. The research was aimed at testing the potentially combined effect of ageing and grouping on speed and proxemic behaviour. In particular, we focused on dyads, as the most frequent type of groups in the observed scenario...
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