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Phys Rev E 85 (2011) 036111
Properties of pedestrians walking in line -- Fundamental diagrams
Asja Jelić 1, Cécile Appert-Rolland 1, Samuel Lemercier 2, Julien Pettré 2
(2011)

We present experimental results obtained for a one-dimensional pedestrian flow using high precision motion capture. The full pedestrians' trajectories are obtained. In this paper, we focus on the fundamental diagram, and on the relation between instantaneous velocity and spatial headway (distance to the predecessor). While the latter was found to be linear in previous experiments, we show that it is rather a piecewise linear behavior which is found if larger density ranges are covered. Indeed, our data clearly exhibits three distinct regimes in the behavior of pedestrians that follow each other. The transitions between these regimes occur at spatial headways of about 1.1 and 3 meters respectively. This finding could be useful for future modeling.
1:  Laboratoire de Physique Théorique d'Orsay (LPT)
CNRS : UMR8627 – Université Paris XI - Paris Sud
2:  MIMETIC (INRIA - IRISA)
INRIA – Université de Rennes 1 – Université de Rennes II - Haute Bretagne
Nonlinear Sciences/Adaptation and Self-Organizing Systems

Physics/Physics/Physics and Society
Fulltext link: 
http://fr.arXiv.org/abs/1111.5708