Berlin 2012 – wissenschaftliches Programm
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SOE: Fachverband Physik sozio-ökonomischer Systeme
SOE 18: Traffic Dynamics, Urban and Regional Systems II
SOE 18.1: Vortrag
Donnerstag, 29. März 2012, 10:15–10:30, H 0110
Simulation of dynamical information spread during pedestrian evacuation — •Mirko Kämpf1, Christian Napierala2, and Jan W. Kantelhardt1 — 1Institut für Physik, Martin-Luther Universität Halle-Wittenberg, Halle/Saale, Germany — 2Fakultät für Maschinenbau, Otto-von-Guericke-Universität, Magdeburg, Germany
The collecting and spreading of up-to-date information is crucial for optimizing the evacuation of pedestrian crowds from buildings or large gatherings. If no global communication system is operative (e.g., during emergency situations), information might be collected automatically by future smart-phones (e.g., by accelerometers) and spread using local ad-hoc communication between them. To simulate and characterize the dynamics of such information spread, we combine an agent-based lattice-gas simulation of the evacuation process with a network analysis approach. The model system is a combination of two coupled networks, one representing the paths in the building and one representing the communication network between the agents smart-phones. We study how fast a change of the systems state is recognized, how fast this information is spread and what quality of information is available at a certain location and at a certain time, depending on several parameters. We also compare our results with well-known epidemic infection models (SIR and SIS) and with previous results of simulations in an unrestricted geometry. Furthermore, we analyze the time evolution of the agents information status to find out if we can detect and avoid interference effects.