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crowd-escape-panic.nb
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crowd-escape-panic.nb
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(* Content-type: application/vnd.wolfram.mathematica *)
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Cell["Crowd Escape Panic Model", "Title",
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"D. Helbing, I. Farkas, and T. Vicsek. Simulating dynamical features of \
escape panic. ",
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The paper describes a dynamical systems model (see below for a full \
definition) for crowds of people running to an exit. The model consists of a \
system of ODEs based on the forces of people acting on each other. This \
program solves the ODEs using forward Euler\[CloseCurlyQuote]s method.\
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This demonstration consists mostly of a single Manipulate environment to \
produce an animation of a crowd attempting to escape a building. People are \
represented as randomly-sized dots. The color of the dot represents the \
amount of crush force experienced, with redder color indicating more force, \
which a planner would ideally like to avoid since this can lead to injury. A \
time series is also displayed in the lower right corner, with the green \
series indicating number of successful escapes (which occurs when a dot \
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There are also controls to change the layout of the room and the size and \
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changes are not applied in real time, and are instead applied by pressing the \
\[OpenCurlyDoubleQuote]apply changes\[CloseCurlyDoubleQuote] button, at which \
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gray outline. This button can also be pressed even without applying changes \
simply to randomly restart the simulation with different starting positions.\
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