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Article: Multi-commodity traffic assignment by continuum approximation of network flow with variable demand

TitleMulti-commodity traffic assignment by continuum approximation of network flow with variable demand
Authors
KeywordsContinuum modeling
Multi-commodity
Traffic assignment
Variable demand
Issue Date1998
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/trb
Citation
Transportation Research Part B: Methodological, 1998, v. 32B n. 8, p. 567-581 How to Cite?
AbstractConsider a city with several highly compact central business districts (CBD), and the commuters' destinations from each of them are dispersed over the whole city. Since at a particular location inside the city the traffic movements from different CBDs share the same space and do not cancel out each other as in conventional fluid flow problems albeit travelling in different directions, the traffic flows from a CBD to the destinations over the city are considered as one commodity. The interaction of the traffic flows among different commodities is governed by a cost-flow relationship. The case of variable demand is considered. The primal formulation of the continuum equilibrium model is given and proved to satisfy the user optimal conditions, and the dual formulation of the problem and its complementary conditions are also discussed. A finite element method is then employed to solve the continuum problem. A numerical example is given to illustrate the effectiveness of the proposed method.
Persistent Identifierhttp://hdl.handle.net/10722/71615
ISSN
2015 Impact Factor: 3.769
2015 SCImago Journal Rankings: 3.905
References

 

DC FieldValueLanguage
dc.contributor.authorWong, SCen_HK
dc.date.accessioned2010-09-06T06:33:36Z-
dc.date.available2010-09-06T06:33:36Z-
dc.date.issued1998en_HK
dc.identifier.citationTransportation Research Part B: Methodological, 1998, v. 32B n. 8, p. 567-581en_HK
dc.identifier.issn0191-2615en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71615-
dc.description.abstractConsider a city with several highly compact central business districts (CBD), and the commuters' destinations from each of them are dispersed over the whole city. Since at a particular location inside the city the traffic movements from different CBDs share the same space and do not cancel out each other as in conventional fluid flow problems albeit travelling in different directions, the traffic flows from a CBD to the destinations over the city are considered as one commodity. The interaction of the traffic flows among different commodities is governed by a cost-flow relationship. The case of variable demand is considered. The primal formulation of the continuum equilibrium model is given and proved to satisfy the user optimal conditions, and the dual formulation of the problem and its complementary conditions are also discussed. A finite element method is then employed to solve the continuum problem. A numerical example is given to illustrate the effectiveness of the proposed method.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/trben_HK
dc.relation.ispartofTransportation Research Part B: Methodologicalen_HK
dc.subjectContinuum modelingen_HK
dc.subjectMulti-commodityen_HK
dc.subjectTraffic assignmenten_HK
dc.subjectVariable demanden_HK
dc.titleMulti-commodity traffic assignment by continuum approximation of network flow with variable demanden_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0191-2615&volume=32B&spage=567 &epage= 581&date=1998&atitle=Multi-commodity+traffic+assignment+by+continuum+approximation+of+network+flow+with+variable+demanden_HK
dc.identifier.emailWong, SC:hhecwsc@hku.hken_HK
dc.identifier.authorityWong, SC=rp00191en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0032219178en_HK
dc.identifier.hkuros39930en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032219178&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume32Ben_HK
dc.identifier.issue8en_HK
dc.identifier.spage567en_HK
dc.identifier.epage581en_HK
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridWong, SC=24323361400en_HK

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