Estimation of Freeway Travel Time Based on Sparsely Distributed Detectors
This study presents a new approach for estimating travel time information along freeway corridors, which experience recurrent congestions but have only a limited number of available detectors due to budget constraints. The proposed iterative estimation procedure, based on a set of empirically calibrated regression models, intends to rebuild the relations between travel times and accumulated flows within each segment of the target freeway corridor. To evaluate the effectiveness of the proposed methodology, this study has conducted extensive numerical experiments with simulated data from a CORSIM simulator. Experimental results under various traffic volume levels have revealed that the proposed method offers a promising property for use in travel time estimation based on sparsely distributed sensors.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0784407991
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Corporate Authors:
American Society of Civil Engineers
1801 Alexander Bell Drive
Reston, VA United States 20191-4400 -
Authors:
- Liu, Ying
- Chang, Gang-Len
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Conference:
- Applications of Advanced Technology in Transportation. The Ninth International Conference
- Location: Chicago Illinois, United States
- Date: 2006-8-13 to 2006-7-16
- Publication Date: 2006
Language
- English
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 560-565
- Monograph Title: Applications of Advanced Technology in Transportation. Proceedings of the Ninth International Conference
Subject/Index Terms
- TRT Terms: Corridors; Freeway operations; Freeways; Information systems; Regression analysis; Traffic congestion; Traffic estimation; Traffic simulation; Traffic volume; Travel time
- Identifier Terms: CORSIM (Traffic simulation model)
- Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning;
Filing Info
- Accession Number: 01038714
- Record Type: Publication
- ISBN: 0784407991
- Files: TRIS
- Created Date: Dec 29 2006 11:07AM