When diffusion faces drift: consequences of exclusion processes for bi–directional pedestrian flows

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Fältnamn	Indikatorer	Metadata
000		03322naa a2200385 4500
001		oai:DiVA.org:kau-79144
003		SwePub
008		200720s2020 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-791442 URI
024	7	a https://doi.org/10.1016/j.physd.2020.1326512 DOI
040		a (SwePub)kau
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Cirillo, Emilio N.M.u Sapienza University, ITA4 aut
245	1 0	a When diffusion faces drift :b consequences of exclusion processes for bi–directional pedestrian flows
264	1	b Elsevier,c 2020
338		a electronic2 rdacarrier
520		a Stochastic particle-based models are useful tools for describing the collective movement of large crowds of pedestrians in crowded confined environments. Using descriptions based on the simple exclusion process, two populations of particles, mimicking pedestrians walking in a built environment, enter a room from two opposite sides. One population is passive - being unaware of the local environment; particles belonging to this group perform a symmetric random walk. The other population has information on the local geometry in the sense that as soon as particles enter a visibility zone, a drift activates them. Their self-propulsion leads them towards the exit. This second type of species is referred here as active. The assumed crowdedness corresponds to a near-jammed scenario. The main question we ask in this paper is: Can we induce modifications of the dynamics of the active particles to improve the outgoing current of the passive particles? To address this question, we compute occupation number profiles and currents for both populations in selected parameter ranges. Besides observing the more classical faster-is-slower effect, new features appear as prominent like the non-monotonicity of currents, self-induced phase separation within the active population, as well as acceleration of passive particles for large-drift regimes of active particles.
650	7	a NATURVETENSKAPx Matematik0 (SwePub)1012 hsv//swe
650	7	a NATURAL SCIENCESx Mathematics0 (SwePub)1012 hsv//eng
653		a Simple exclusion process; Two species stochastic dynamics; Passive-active pedestrian flows; Particles current; Occupation numbers
653		a Matematik
653		a Mathematics
700	1	a Colangeli, Matteou University Aquila, ITA4 aut
700	1	a Muntean, Adrian,d 1974-u Karlstads universitet,Institutionen för matematik och datavetenskap (from 2013)4 aut0 (Swepub:kau)adrimunt
700	1	a Thoa Thieu, T.K.u Karlstads universitet,Institutionen för matematik och datavetenskap (from 2013),Gran Sasso Science Institute, ITA4 aut0 (Swepub:kau)thoathie
710	2	a Sapienza University, ITAb University Aquila, ITA4 org
773	0	t Physica Dd : Elsevierg 413q 413x 0167-2789x 1872-8022
856	4	u https://doi.org/10.1016/j.physd.2020.132651y Fulltext
856	4	u https://kau.diva-portal.org/smash/get/diva2:1454676/FULLTEXT02.pdfx primaryx Raw objecty fulltext:print
856	4	u https://doi.org/10.1016/j.physd.2020.132651
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-79144
856	4 8	u https://doi.org/10.1016/j.physd.2020.132651

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Av författaren/redakt...: Cirillo, Emilio ...; Colangeli, Matte ...; Muntean, Adrian, ...; Thoa Thieu, T.K.

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NATURVETENSKAP: NATURVETENSKAP; och Matematik

Artiklar i publikationen: Physica D

Av lärosätet: Karlstads universitet

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