2026-06-10 東京大学
ランダムに歩行する人々の集団では、反時計回りの回転が観察される傾向がある。
＜関連情報＞
- https://www.t.u-tokyo.ac.jp/press/pr2026-06-10-001
- https://www.nature.com/articles/s41467-026-73713-w
個々の運動特性の偏りが、歩行者の群衆における反時計回りの動きを促す Individual locomotor bias drives counterclockwise motion in pedestrian crowds
Iñaki Echeverría-Huarte,Claudio Feliciani,Zhigang Shi,Katsuhiro Nishinari,Angel Sánchez,Angel Garcimartín & Iker Zuriguel
Nature Communications Published:10 June 2026
DOI:https://doi.org/10.1038/s41467-026-73713-w
Abstract
Pedestrian walking behaviour is intrinsic to individuals, yet it is influenced by external factors such as obstacles and the degree of crowding. It is precisely in crowded scenarios that pedestrian interactions lead to collective motions, such as lane formation or waves. Recently, the spontaneous development of collective counterclockwise motion has been reported in both dense and sparse human assemblies. Here we present five experimental studies of this phenomenon conducted across diverse conditions in Spain and Japan, demonstrating that counterclockwise bias in roaming pedestrians is a robust and reproducible feature and originates from individual tendencies rather than from collective interactions. These findings challenge the traditional view that social dynamics shape pedestrian motion, highlighting the existence of an intrinsic locomotor bias.
