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SUMMARY:The Physics of High-Density Crowds - Arianna Bottinelli\, NORDITA
DTSTART:20180529T120000Z
DTEND:20180529T130000Z
UID:TALK104662@talks.cam.ac.uk
CONTACT:Professor Mike Cates
DESCRIPTION:During mass events such as concerts\, parades\, sporting event
 s\, and pilgrimages\, crowd density can become exceptionally high\, causin
 g the emergence of sometimes deadly collective motion such as crowd turbul
 ence and density waves. In such extreme conditions\, conventional informat
 ion transfer and communication between human subjects appear to break down
 \, preventing information about injurious situations to spread\, and count
 eractions to be immediately taken. Understanding the physical mechanisms u
 nderlying collective motion in the extreme case presented by high-density 
 crowds\, and how this is coupled with information transfer\, constitutes a
  fundamental step in predicting and preventing the dangers arising at mass
  gatherings.\n\nTaking inspiration from the physics of jammed granular mat
 erials\, we were able to identify Goldstone modes\, soft spots\, and stoch
 astic resonance\, as potential mechanisms for dangerous emergent collectiv
 e motions in crowds [1\,2]. \nI will give an overview of the main results
  obtained by applying mode analysis to crowd simulations\, and discuss the
  most recent insights gained by extending these techniques to crowd video 
 footage. I will also show some preliminary results on how traditional mode
 ls of information dynamics can be spatially embedded to analyze the breakd
 own of information transfer in high-density scenarios. \n\n\n[1] A. Bottin
 elli\, D.T.J. Sumpter\, J.L. Silverberg\, “Emergent structural mechanism
 s for high-density collective motion inspired by human crowds”\, PRL (20
 16)\n[2] A. Bottinelli\, J.L. Silverberg\, “How to: using mode analysis 
 to quantify\, analyze\, and interpret the mechanisms of high-density colle
 ctive motion”\, Frontiers (2017)\n\n
LOCATION:MR11\, CMS
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