background image
generator is a rectangular area located outside the pedestrian trap where the pedestrians
appear in some point of time. The origin point of the pedestrian is inside a pedestrian
generator while the destination point is in another pedestrian generator. The location of
the origin point inside the pedestrian generator is determined using uniform random
distribution. When a pedestrian reaches the location near the destination point, the
pedestrian will disappear.
When the pedestrians are generated automatically by the program, all pedestrians are
generated at the same time before the simulation. The locations of origin-points are
generated randomly (uniform or normal distribution spatially) within the pedestrian
generator without overlapping each other.
You can set the size of the pedestrian trap in Calibration dialog. If you feel the size of the
trap too small or too big visually, you can change the pedestrian trap form by dragging its
edge left or right. The visual size of the trap will not affect the result of the simulation
because the coordinate will eventually change as you change the size of the form.
By default the pedestrian trap is always shown, but if you close it accidentally, you can
see it again by menu Output-Show Trap or press function key F3.
12. Forces
Just in case you want to experiments with the forces and
calibrate parameters inside the models, you may specify
which individual force will be included in the simulation
by using menu Run-Option-Force or Ctrl-F.
Forward force is the motivation to go ahead. Without this
force the pedestrian will not move from origin to the destination. Input Parameters mass
and alpha are influencing the forward force.
Repulse away
pedestrian j
Avoid collision force
Repulse away force is the motivation to go away from other pedestrians. This force is
useful for avoiding when pedestrian meet each other from a distance. The force is also