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dc.contributor.advisorMachemehl, Randy B.
dc.creatorShenoda, Michaelen
dc.date.accessioned2014-04-29T16:53:34Zen
dc.date.available2014-04-29T16:53:34Zen
dc.date.issued2006-08en
dc.identifier.urihttp://hdl.handle.net/2152/24348en
dc.descriptiontexten
dc.description.abstractAdaptive traffic signal control is the process by which the timing of a traffic signal is continuously adjusted based on the changing arrival patterns of vehicles at an intersection, usually with the goal of optimizing a given measure of effectiveness. Herein, a methodology is developed in which the characteristics of a traffic signal cycle are optimized at the conclusion of every phase based on the arrival times of vehicles to an intersection, using stopped delay as the measure of effectiveness. This optimization is solved using metaheuristic search procedures, namely tabu search, and embedded in an algorithm in which current vehicle arrival times are detected, arrival patterns over a specified horizon are predicted, the traffic signal timing is optimized, and the timings are sent to a traffic signal controller. The methodology is shown to provide improvement in performance for a number of intersection configurations and traffic regimes over traditional forms of traffic signal control, and the metaheuristic search is demonstrated to significantly reduce the computation time for a solution as compared with other search procedures.en
dc.format.mediumelectronicen
dc.language.isoengen
dc.rightsCopyright is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.en
dc.subjectAdaptive traffic signal controlen
dc.subjectOptimized traffic signal cycleen
dc.subjectMetaheuristic search proceduresen
dc.titleDevelopment of a phase-by-phase, arrival-based, delay-optimized adaptive traffic signal control methodology with metaheuristic searchen
dc.typeThesisen
dc.description.departmentCivil, Architectural, and Environmental Engineeringen
thesis.degree.departmentCivil, Architectural, and Environmental Engineeringen
thesis.degree.disciplineCivil Engineeringen
thesis.degree.grantorThe University of Texas at Austinen
thesis.degree.levelDoctoralen
thesis.degree.nameDoctor of Philosophyen


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