Special Behaviors in One Pedestrian Flow Experiment
<p><em>We organize one pedestrian flow experiment with 278 participants, and the maximum density reaches 9 ped/(m^2). The experiment is filmed by one UAV, and in the experimental video, we find some interesting behaviors. Five types of these behaviors are classified and introduced: 1</em><em>)</em><em> oppression near the boundaries; 2</em><em>)</em><em> impact on the boundaries; 3</em><em>)</em><em> special moves; 4</em><em>)</em><em> absentmindedness; 5</em><em>)</em><em> other events. The numbers of Type 1 and 2 behaviors can be counted, while the frequencies of Type 3 and 4 behaviors can be roughly estimated. At one critical density, the results of Type 1, 2, 3, 4 behaviors qualitatively change. This value is about 7~8 ped/(m^2), which indicates the possible existence of critical phenomena in pedestrian flow.</em></p>