Bionics-Inspired Cellular Automaton Model for Pedestrian Dynamics
We present a 2-dimensional cellular automaton model for the simulation of pedestrian dynamics. Inspired by the principles of chemotaxis the interactions between the pedestrians are mediated by a so-called floor field. This field has a similar effect as the chemical trace created e.g. by ants to guide other individuals to food places. In our case the floor field modifies the transition rates to neighbouring cells. It has its own dynamics (diffusion and decay) and can be changed by the motion of the pedestrians. This means that in our model pedestrians follow a virtual rather than a chemical trace as in the case of chemotaxis. The approach is extremely efficient and makes faster-than-real-time simulations of large crowds possible. Already the inclusion of only nearest-neighbour interactions allows to reproduce many of the collective effects and self-organization phenomena (lane formation, flow oscillations at doors etc.) encountered in pedestrian dynamics.
KeywordsTransportation Peri Santen
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