Abstract
The article deals with a formal presentation of transition rules in the CA pedestrian dynamics model. The model is stochastic and supposes short-term decisions made by the pedestrians [9, 11]. A possibility to move according the shortest path and the shortest time strategies are implemented to the model. This feature is reflected in update rules and transition probabilities which are presented in the paper in formal mathematical way. Computational artifacts which concern using of static floor field and people density estimate are discussed as well.
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This trick of choosing the current position is provoked by the fact that when moving directionally people usually stop only if the preferable direction is occupied. The original FF model [22] never gives zero probability to the current position, and it may be chosen independent of the environment.
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Kirik, E., Vitova, T. (2016). On Formal Presentation of Update Rules, Density Estimate and Using Floor Fields in CA FF Pedestrian Dynamics Model SIgMA.CA. In: El Yacoubi, S., Wąs, J., Bandini, S. (eds) Cellular Automata. ACRI 2016. Lecture Notes in Computer Science(), vol 9863. Springer, Cham. https://doi.org/10.1007/978-3-319-44365-2_43
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