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Conference Paper: A spatial queuing approach to optimize coordinated signal settings to obviate gridlock in adjacent work zones

TitleA spatial queuing approach to optimize coordinated signal settings to obviate gridlock in adjacent work zones
Authors
KeywordsCell Transmission Model
Gridlock
Signal Coordination
Spatial Queue
Work Zones
Issue Date2010
PublisherJohn Wiley & Sons, Inc.. The Journal's web site is located at http://www.advanced-transport.com
Citation
Journal Of Advanced Transportation, 2010, v. 44 n. 4, p. 231-244 How to Cite?
AbstractGridlock is defined when traffic comes to a complete halt inducing huge delays. If a work zone on a two-lane two-way highway is set up, in which one of the traffic lanes is closed for maintenance road works, the remaining lane has to be controlled to serve the two-way traffic alternatively. The study objective is to optimize the traffic signal controls across two closely spaced work zones to prevent a gridlock, which can occur easily if upstream and downstream signals are not well coordinated. When vehicle queues build up in the middle sections between two work zones and further expand to occupy the single available lanes in both directions, the two-way traffic is then blocked and no vehicle can leave from the queues generating a gridlock. To address this problem, spatial queues are important parameters that must be explicitly analyzed. The cell transmission model, which is known to be a robust mathematical tool for the modeling of queue dynamics, is adopted in this study. A signal cell is used to represent each traffic signal control, the exit flow capacity of which is defined in accordance with the signal plan. A set of linear constraints is established to relate all of the model parameters and variables. The objective function is taken as the total number of vehicles in the critical section between the two work zones. The minimization of this objective function can effectively obviate the occurrence of a gridlock. The optimization problem is formulated as a Binary-Mixed- Integer-Linear-Program that can be solved by the standard branch-and-bound technique. Numerical examples are given to demonstrate the effectiveness of the proposed methodology. Copyright © 2010 John Wiley & Sons, Ltd.
DescriptionThis special issue 'Recent Advances in Traffic Control and Management' is organized based on selected papers presented at the Second International Conference on Transport and Logistics Systems held on the 21st and 22nd of August 2006 in Colombo, Sri Lanka.
Persistent Identifierhttp://hdl.handle.net/10722/152166
ISSN
2014 Impact Factor: 1.606
2014 SCImago Journal Rankings: 0.885
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWong, CKen_US
dc.contributor.authorWong, SCen_US
dc.contributor.authorLo, HKen_US
dc.date.accessioned2012-06-26T06:35:45Z-
dc.date.available2012-06-26T06:35:45Z-
dc.date.issued2010en_US
dc.identifier.citationJournal Of Advanced Transportation, 2010, v. 44 n. 4, p. 231-244en_US
dc.identifier.issn0197-6729en_US
dc.identifier.urihttp://hdl.handle.net/10722/152166-
dc.descriptionThis special issue 'Recent Advances in Traffic Control and Management' is organized based on selected papers presented at the Second International Conference on Transport and Logistics Systems held on the 21st and 22nd of August 2006 in Colombo, Sri Lanka.-
dc.description.abstractGridlock is defined when traffic comes to a complete halt inducing huge delays. If a work zone on a two-lane two-way highway is set up, in which one of the traffic lanes is closed for maintenance road works, the remaining lane has to be controlled to serve the two-way traffic alternatively. The study objective is to optimize the traffic signal controls across two closely spaced work zones to prevent a gridlock, which can occur easily if upstream and downstream signals are not well coordinated. When vehicle queues build up in the middle sections between two work zones and further expand to occupy the single available lanes in both directions, the two-way traffic is then blocked and no vehicle can leave from the queues generating a gridlock. To address this problem, spatial queues are important parameters that must be explicitly analyzed. The cell transmission model, which is known to be a robust mathematical tool for the modeling of queue dynamics, is adopted in this study. A signal cell is used to represent each traffic signal control, the exit flow capacity of which is defined in accordance with the signal plan. A set of linear constraints is established to relate all of the model parameters and variables. The objective function is taken as the total number of vehicles in the critical section between the two work zones. The minimization of this objective function can effectively obviate the occurrence of a gridlock. The optimization problem is formulated as a Binary-Mixed- Integer-Linear-Program that can be solved by the standard branch-and-bound technique. Numerical examples are given to demonstrate the effectiveness of the proposed methodology. Copyright © 2010 John Wiley & Sons, Ltd.en_US
dc.languageengen_US
dc.publisherJohn Wiley & Sons, Inc.. The Journal's web site is located at http://www.advanced-transport.comen_US
dc.relation.ispartofJournal of Advanced Transportationen_US
dc.subjectCell Transmission Modelen_US
dc.subjectGridlocken_US
dc.subjectSignal Coordinationen_US
dc.subjectSpatial Queueen_US
dc.subjectWork Zonesen_US
dc.titleA spatial queuing approach to optimize coordinated signal settings to obviate gridlock in adjacent work zonesen_US
dc.typeConference_Paperen_US
dc.identifier.emailWong, SC:hhecwsc@hku.hken_US
dc.identifier.authorityWong, SC=rp00191en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1002/atr.123en_US
dc.identifier.scopuseid_2-s2.0-77958077830en_US
dc.identifier.hkuros183351-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77958077830&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume44en_US
dc.identifier.issue4en_US
dc.identifier.spage231en_US
dc.identifier.epage244en_US
dc.identifier.isiWOS:000282784200003-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridWong, CK=24554560700en_US
dc.identifier.scopusauthoridWong, SC=24323361400en_US
dc.identifier.scopusauthoridLo, HK=36786895900en_US

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