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Article: Group-based optimization of a time-dependent TRANSYT traffic model for area traffic control

TitleGroup-based optimization of a time-dependent TRANSYT traffic model for area traffic control
Authors
Issue Date2002
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/trb
Citation
Transportation Research Part B: Methodological, 2002, v. 36 n. 4, p. 291-312 How to Cite?
AbstractIn this paper, a time-dependent TRANSYT traffic model is developed for the evaluation of a performance index, which is a weighted combination of the estimated delay and number of stops. The group-based specification of signal timings is employed for the traffic model and the set of constraints on these variables is formed. The derivatives of the performance index with respect to the group-based variables are derived, based on which optimization heuristics are developed to solve the time-dependent problem. A medium size signal-controlled network from the Shatin New Town in Hong Kong is employed as a numerical example to illustrate the effectiveness of the heuristics. Two other scenarios are also analyzed, one is based on the average traffic flow and the other takes the traffic flows in individual time intervals for independent analyses. A well-known microscopic simulation model NETSIM is used to evaluate the performance indices for the signal plans derived from these three scenarios. With the proposed heuristics, a remarkable improvement over the average flow scenario is obtained, and when compared with the signal plans from independent analyses, a good improvement is also found. Sensitivity analyses are conducted to illustrate the superiority of the proposed methodology under different levels of congestion in the network. © 2002 Elsevier Science Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/71357
ISSN
2015 Impact Factor: 3.769
2015 SCImago Journal Rankings: 3.905
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWong, SCen_HK
dc.contributor.authorWong, WTen_HK
dc.contributor.authorLeung, CMen_HK
dc.contributor.authorTong, COen_HK
dc.date.accessioned2010-09-06T06:31:15Z-
dc.date.available2010-09-06T06:31:15Z-
dc.date.issued2002en_HK
dc.identifier.citationTransportation Research Part B: Methodological, 2002, v. 36 n. 4, p. 291-312en_HK
dc.identifier.issn0191-2615en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71357-
dc.description.abstractIn this paper, a time-dependent TRANSYT traffic model is developed for the evaluation of a performance index, which is a weighted combination of the estimated delay and number of stops. The group-based specification of signal timings is employed for the traffic model and the set of constraints on these variables is formed. The derivatives of the performance index with respect to the group-based variables are derived, based on which optimization heuristics are developed to solve the time-dependent problem. A medium size signal-controlled network from the Shatin New Town in Hong Kong is employed as a numerical example to illustrate the effectiveness of the heuristics. Two other scenarios are also analyzed, one is based on the average traffic flow and the other takes the traffic flows in individual time intervals for independent analyses. A well-known microscopic simulation model NETSIM is used to evaluate the performance indices for the signal plans derived from these three scenarios. With the proposed heuristics, a remarkable improvement over the average flow scenario is obtained, and when compared with the signal plans from independent analyses, a good improvement is also found. Sensitivity analyses are conducted to illustrate the superiority of the proposed methodology under different levels of congestion in the network. © 2002 Elsevier Science Ltd. All rights reserved.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.titleGroup-based optimization of a time-dependent TRANSYT traffic model for area traffic controlen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0191-2615&volume=36&spage=291 &epage= 312&date=2002&atitle=Group-based+optimization+of+a+time-dependent+TRANSYT+traffic+model+for+area+traffic+controlen_HK
dc.identifier.emailWong, SC:hhecwsc@hku.hken_HK
dc.identifier.emailTong, CO:cotong@hku.hken_HK
dc.identifier.authorityWong, SC=rp00191en_HK
dc.identifier.authorityTong, CO=rp00178en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0191-2615(01)00004-2en_HK
dc.identifier.scopuseid_2-s2.0-0036568078en_HK
dc.identifier.hkuros66169en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036568078&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume36en_HK
dc.identifier.issue4en_HK
dc.identifier.spage291en_HK
dc.identifier.epage312en_HK
dc.identifier.isiWOS:000173911400001-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridWong, SC=24323361400en_HK
dc.identifier.scopusauthoridWong, WT=34973728400en_HK
dc.identifier.scopusauthoridLeung, CM=35146017000en_HK
dc.identifier.scopusauthoridTong, CO=7202715087en_HK

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