[eng] The so-called fundamental diagram has been a constant in the study of
pedestrian dynamics from its origins to the present day. Yet, there is no
consensus about the particular form of this function and not sufficient
evidence for it to display universality. In this work, a study of the
fundamental diagram in different pedestrian facility sets by means of social
force models is carried out. Results suggest the fundamental diagram
predicted by the social force models used cannot be considered fundamental
or universal since its functional shape crucially depends on the geometry of
the facility.