41804 20210121114454.0 doi 10.1103/PhysRevE.92.062817 sideral 93227 ART-2015-93227 eng Pastor, J.M. Experimental proof of faster-is-slower in systems of frictional particles flowing through constrictions 2015 Access copy available to the general public Unrestricted The "faster-is-slower" (FIS) effect was first predicted by computer simulations of the egress of pedestrians through a narrow exit D. Helbing, I. J. Farkas, and T. Vicsek, Nature (London) 407, 487 (2000)NATUAS0028-083610.1038/35035023]. FIS refers to the finding that, under certain conditions, an excess of the individuals'' vigor in the attempt to exit causes a decrease in the flow rate. In general, this effect is identified by the appearance of a minimum when plotting the total evacuation time of a crowd as a function of the pedestrian desired velocity. Here, we experimentally show that the FIS effect indeed occurs in three different systems of discrete particles flowing through a constriction: (a) humans evacuating a room, (b) a herd of sheep entering a barn, and (c) grains flowing out a 2D hopper over a vibrated incline. This finding suggests that FIS is a universal phenomenon for active matter passing through a narrowing. info:eu-repo/grantAgreement/ES/MINECO/FIS2014-57325 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 2.252 2015 PHYSICS, MATHEMATICAL 6 / 53 = 0.113 2015 Q1 T1 PHYSICS, FLUIDS & PLASMAS 10 / 30 = 0.333 2015 Q2 T2 1.183 2015 Condensed Matter Physics 2015 Q1 Statistical and Nonlinear Physics 2015 Q1 Statistics and Probability 2015 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Garcimartín, A. Gago, P.A. Peralta, J.P. Martín-Gómez, C. (orcid)0000-0003-0042-8800 Ferrer, L.M. Universidad de Zaragoza Maza, D. Parisi, D.R. Pugnaloni, L.A. Zuriguel, I. 1009 617 Universidad de Zaragoza Dpto. Patología Animal Área Medicina y Cirugía Animal 92, 6 (2015), 062817[6 pp] Phys. rev., E Physical Review E 2470-0045 1209273 http://zaguan.unizar.es/record/41804/files/texto_completo.pdf Versión publicada 135702 http://zaguan.unizar.es/record/41804/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:41804 articulos driver 2021-01-21-10:47:24 ARTICLE