Enhancing the practical usability of dynamic traffic assignment

dc.contributor.advisorBoyles, Stephen David, 1982-en
dc.contributor.committeeMemberBhat, Chandraen
dc.creatorPool, Christopher Matthewen
dc.date.accessioned2013-03-04T16:29:13Zen
dc.date.issued2012-12en
dc.date.submittedDecember 2012en
dc.date.updated2013-03-04T16:29:13Zen
dc.descriptiontexten
dc.description.abstractA general framework is presented for replacing static traffic assignment with dynamic traffic assignment within the standard four step transportation planning model. Issues including model consistency and the implementation of a proper feedback loop are explored. The new model is compared with the standard four step model in order to highlight the benefits of using dynamic traffic assignment rather than static. The model is then extended to include a term for the difference between experienced and free-flow travel times, which can be used as a proxy for travel time reliability and highlights the benefits of time-dependent DTA. Additionally, a study on improving the quality of convergence for dynamic traffic assignment is conducted in order to help facilitate the usefulness of this modeling approach in practice. A variety of equilibration techniques are tested, and analysis is performed to contrast these techniques with the method of successive averages.en
dc.description.departmentCivil, Architectural, and Environmental Engineeringen
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/2152/19700en
dc.language.isoen_USen
dc.subjectDynamic traffic assignmenten
dc.subjectFour step modelen
dc.subjectConvergenceen
dc.titleEnhancing the practical usability of dynamic traffic assignmenten
thesis.degree.departmentCivil, Architectural, and Environmental Engineeringen
thesis.degree.disciplineCivil Engineeringen
thesis.degree.grantorThe University of Texas at Austinen
thesis.degree.levelMastersen
thesis.degree.nameMaster of Science in Engineeringen
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