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Development of a quasi-dynamic origin/destination matrix estimation model by using PDA and its application  

Lim, Yong-Taek (전남대학교 교통물류학부)
Choo, Sang-Ho (한국교통연구원)
Kang, Min-Gu (한국교통연구원)
Publication Information
Journal of Korean Society of Transportation / v.26, no.6, 2008 , pp. 123-132 More about this Journal
Abstract
Dynamic origin-destination (OD) trip matrix has been widely used for transportation fields such as dynamic traffic assignment, traffic operation and travel demand management, which needs precise OD trip matrix to be collected. This paper presents a quasi-dynamic OD matrix estimation model and applies it to real road network for collecting the dynamic OD matrix. The estimation model combined with dynamic traffic assignment program, DYNASMART-P, is based on GPS embedded in PDA, which developed for collecting sample dynamic OD matrix. The sample OD matrix should be expanded by the value of optimal sampling ratio calculated from minimization program. From application to real network of Jeju, we confirm that the model and its algorithm produce a reasonable solution.
Keywords
dynamic OD matrix estimation; totalized OD matrix; mathematical program; DTA; sample OD matrix;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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