28. September 2015 · Comments Off on A Hybrid Model for Reliable Travel Time Estimation on a Freeway with Sparsely Distributed Detectors · Categories: Conference Papers, Publications

Authors: Nan Zou, Jianwei Wang, and Gang-Len Chang

Conference: 2007′ World Congress on ITS, Beijing in China

Status: Presented

Abstract: This study develops a hybrid model that can reliably estimate travel times on freeways with sparsely distributed detectors having the spacing of more than one mile. The developed model, which includes a clustered linear regression model as the main component and a supplemental enhanced trajectory-based model, can effectively capture impacts of various geometric features, such as ramps and merging lanes, and different traffic patterns on the variability of travel times. The experimental results based on a field demonstration on a 25-mile stretch of I-70 eastbound with 10 detectors have demonstrated the promising properties of the developed model under various congestion levels.

Download (Travel_Time_Estimation_World_Congress.pdf)

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