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walking between free will and determinism
No full textWalking is a fundamental activity of human beings. Any simple
movement is the result of complex interactions between
the external environment and the individual cognitive dynamics.
The proposedmodels havemainly considered a deterministic
point of view to describe the choice of the pedestrians
trajectories and to study the critical congested states. But recently
it has been pointed out the importance of the individual
free will in determining both the microscopic pedestrian
behavior and the emergent properties of the crowd dynamics.
In this paper we discuss a hierarchical model for pedestrian
mobility whose emergent dynamical properties are determined
by the bottom-up and top-down actions among the
microscopic-level (free-will level), the mesoscopic level (deterministic
level) andmacroscopic level (cognitive level). The
"mobbers" have an internal cognitive dynamics, performboth
physical and information based interactions using a vision
mechanism and are able to compute a cognitive map representation
of the geometrical space.
The model has been implemented in the DISTRIMOBS
simulator that is designed to simulate a whole city on a distributed
architecture. The main properties of the model are
discussed and some applications are presented
Abdominal visceral hernia through a chest wall defect secondary to open-window thoracostomy
No full text
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