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Article: Interactions of waves in the speed-gradient traffic flow model

TitleInteractions of waves in the speed-gradient traffic flow model
Authors
KeywordsInitial value problem
Partial differential equation
Shock wave
Smooth transition layer
Traffic flow
Issue Date2007
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/physa
Citation
Physica A: Statistical Mechanics And Its Applications, 2007, v. 380 n. 1-2, p. 481-489 How to Cite?
AbstractIn this paper, we use the speed-gradient (SG) model proposed by Jiang et al. [Transportation Research Part B, 36 (2002) 405-419] to study the initial value problem of traffic flow. The evolution of multi-traffic waves is examined through setting piecewise continuous initial density. Numerical results show that distinct shocks and smooth transition layers appear instantaneously for some initial densities, and the shock front is smoothed by the smooth transition layer ahead of or behind it if, in the initial density, the length of shock section or the length of lower-density section before the shock is very short. We thus verify that the SG model can satisfyingly reproduce the evolution of multi-traffic waves with various initial densities. © 2007 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/70595
ISSN
2015 Impact Factor: 1.785
2015 SCImago Journal Rankings: 0.738
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorTang, TQen_HK
dc.contributor.authorHuang, HJen_HK
dc.contributor.authorGao, ZYen_HK
dc.contributor.authorWong, SCen_HK
dc.date.accessioned2010-09-06T06:24:24Z-
dc.date.available2010-09-06T06:24:24Z-
dc.date.issued2007en_HK
dc.identifier.citationPhysica A: Statistical Mechanics And Its Applications, 2007, v. 380 n. 1-2, p. 481-489en_HK
dc.identifier.issn0378-4371en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70595-
dc.description.abstractIn this paper, we use the speed-gradient (SG) model proposed by Jiang et al. [Transportation Research Part B, 36 (2002) 405-419] to study the initial value problem of traffic flow. The evolution of multi-traffic waves is examined through setting piecewise continuous initial density. Numerical results show that distinct shocks and smooth transition layers appear instantaneously for some initial densities, and the shock front is smoothed by the smooth transition layer ahead of or behind it if, in the initial density, the length of shock section or the length of lower-density section before the shock is very short. We thus verify that the SG model can satisfyingly reproduce the evolution of multi-traffic waves with various initial densities. © 2007 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/physaen_HK
dc.relation.ispartofPhysica A: Statistical Mechanics and its Applicationsen_HK
dc.rightsPhysica A: Statistical Mechanics and its Applications. Copyright © Elsevier BV.en_HK
dc.subjectInitial value problemen_HK
dc.subjectPartial differential equationen_HK
dc.subjectShock waveen_HK
dc.subjectSmooth transition layeren_HK
dc.subjectTraffic flowen_HK
dc.titleInteractions of waves in the speed-gradient traffic flow modelen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0378-4371&volume=380&spage=481&epage=489&date=2007&atitle=Interactions+of+waves+in+the+speed-gradient+traffic+flow+modelen_HK
dc.identifier.emailWong, SC:hhecwsc@hku.hken_HK
dc.identifier.authorityWong, SC=rp00191en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.physa.2007.02.056en_HK
dc.identifier.scopuseid_2-s2.0-34247846380en_HK
dc.identifier.hkuros126958en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34247846380&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume380en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage481en_HK
dc.identifier.epage489en_HK
dc.identifier.isiWOS:000247243600044-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridTang, TQ=12646561500en_HK
dc.identifier.scopusauthoridHuang, HJ=7405610915en_HK
dc.identifier.scopusauthoridGao, ZY=7402832776en_HK
dc.identifier.scopusauthoridWong, SC=24323361400en_HK
dc.identifier.citeulike7654917-

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