10.1371/journal.pone.0187253.g006 Francesco Zanlungo Francesco Zanlungo Zeynep Yücel Zeynep Yücel Dražen Brščić Dražen Brščić Takayuki Kanda Takayuki Kanda Norihiro Hagita Norihiro Hagita Pdf of the <i>V</i> observable according to relation. Public Library of Science 2017 influences velocity non-abreast formation group height Intrinsic group behaviour crowd density low-medium density range body size Pedestrian height age adults group properties children increases group structure age show inter-group relation dyad dynamics shopping malls group dynamics family members 2017-11-02 17:37:32 Figure https://plos.figshare.com/articles/figure/Pdf_of_the_i_V_i_observable_according_to_relation_/5564200 <p>Blue squares: colleague dyads. Red circles: couples. Orange triangles: family dyads. Green stars: friend dyads.</p>