  This contribution introduces an element of "aggressiveness" into the
Floor-Field based model with adaptive time-span. The aggressiveness is
understood as an ability to win conflicts and push through the crowd. From
experiments it is observed that this ability is not directly correlated with
the desired velocity in the free flow regime. The influence of the
aggressiveness is studied by means of the dependence of the travel time on the
occupancy of a room. A simulation study shows that the conflict solution based
on the aggressiveness parameter can mimic the observations from the experiment.
