Crowding effects in vehicular traffic.

While the impact of crowding on the diffusive transport of molecules within a cell is widely studied in biology, it has thus far been neglected in traffic systems where bulk behavior is the main concern. Here, we study the effects of crowding due to car density and driving fluctuations on the transp...

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Autores principales:	Jay Samuel L Combinido, May T Lim
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/66056028af274e91bf262db0d23b7e4c
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spelling	oai:doaj.org-article:66056028af274e91bf262db0d23b7e4c2021-11-18T08:10:06ZCrowding effects in vehicular traffic.1932-620310.1371/journal.pone.0048151https://doaj.org/article/66056028af274e91bf262db0d23b7e4c2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23139762/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203While the impact of crowding on the diffusive transport of molecules within a cell is widely studied in biology, it has thus far been neglected in traffic systems where bulk behavior is the main concern. Here, we study the effects of crowding due to car density and driving fluctuations on the transport of vehicles. Using a microscopic model for traffic, we found that crowding can push car movement from a superballistic down to a subdiffusive state. The transition is also associated with a change in the shape of the probability distribution of positions from a negatively-skewed normal to an exponential distribution. Moreover, crowding broadens the distribution of cars' trap times and cluster sizes. At steady state, the subdiffusive state persists only when there is a large variability in car speeds. We further relate our work to prior findings from random walk models of transport in cellular systems.Jay Samuel L CombinidoMay T LimPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 11, p e48151 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jay Samuel L Combinido May T Lim Crowding effects in vehicular traffic.
description	While the impact of crowding on the diffusive transport of molecules within a cell is widely studied in biology, it has thus far been neglected in traffic systems where bulk behavior is the main concern. Here, we study the effects of crowding due to car density and driving fluctuations on the transport of vehicles. Using a microscopic model for traffic, we found that crowding can push car movement from a superballistic down to a subdiffusive state. The transition is also associated with a change in the shape of the probability distribution of positions from a negatively-skewed normal to an exponential distribution. Moreover, crowding broadens the distribution of cars' trap times and cluster sizes. At steady state, the subdiffusive state persists only when there is a large variability in car speeds. We further relate our work to prior findings from random walk models of transport in cellular systems.
format	article
author	Jay Samuel L Combinido May T Lim
author_facet	Jay Samuel L Combinido May T Lim
author_sort	Jay Samuel L Combinido
title	Crowding effects in vehicular traffic.
title_short	Crowding effects in vehicular traffic.
title_full	Crowding effects in vehicular traffic.
title_fullStr	Crowding effects in vehicular traffic.
title_full_unstemmed	Crowding effects in vehicular traffic.
title_sort	crowding effects in vehicular traffic.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/66056028af274e91bf262db0d23b7e4c
work_keys_str_mv	AT jaysamuellcombinido crowdingeffectsinvehiculartraffic AT maytlim crowdingeffectsinvehiculartraffic
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Crowding effects in vehicular traffic.

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