2 research outputs found
Model of skyscraper evacuation with the use of space symmetry and fluid dynamic approximation
The simulation of evacuation of pedestrians from skyscraper is a situation
where the symmetry analysis method and equations of fluid dynamics finds to be
very useful. When applied, they strongly reduce the number of free parameters
used in simulations and in such a way speed up the calculations and make them
easier to manage by the programmer and what is even more important, they can
give a fresh insight into a problem of evacuation and help with incorporation
of "Ambient Intelligent Devices" into future real buildings. We have analyzed
various, simplified, cases of evacuation from skyscraper by employing improved
"Social Force Model". For each of them we obtained the average force acting on
the pedestrian as a function of the evacuation time. The results clearly show
that both methods mentioned above, can be successfully implemented in the
simulation process and return with satisfactory conclusions
Symmetry in behavior of complex social systems - discussion of models of crowd evacuation organized in agreement with symmetry conditions
The evacuation of football stadium scenarios are discussed as model realizing
ordered states, described as movements of individuals according to fields of
displacements, calculated correspondingly to given scenario. The symmetry of
the evacuation space is taken into account in calculation of displacements
field - the displacements related to every point of this space are presented in
the coordinate frame in the best way adapted to given symmetry space group,
which the set of basic vectors of irreducible representation of given group is.
The speeds of individuals at every point in the presented model have the same
quantity. As the results the times of evacuation and average forces acting on
individuals during the evacuation are given. Both parameters are compared with
the same parameters got without symmetry considerations. They are calculated in
the simulation procedure. The new program (using modified Helbing model) has
been elaborated and presented in this work for realization the simulation tasks
the