Lane-Based Dynamic Merge Control Strategy Based on Optimal Thresholds for Highway Work Zone Operations
Publication: Journal of Transportation Engineering
Volume 135, Issue 6
Abstract
Despite the potential effectiveness of the dynamic late merge (DLM) control, most existing DLM systems, based on static thresholds, cannot best perform under time-varying traffic conditions. This paper presents an advanced dynamic merge control, called a lane-based dynamic merge control model and its operational algorithm, which is based on the optimized control thresholds that take into account the interactions among the speed, flow, and available work zone capacity. The focus of this study is on how to select the control variables and to determine their optimal thresholds in response to traffic flow dynamics. Evaluation results with extensive simulation experiments have shown the promising properties of the proposed dynamic merge control and its operational algorithm.
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Acknowledgments
This research was supported by a grant from Transportation System Innovation Program (TSIP) funded by Ministry of Land, Transportation and Maritime Affairs (MLTM) of the Korean Government.
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 135 • Issue 6 • June 2009
Pages: 359 - 370
Copyright
© 2009 ASCE.
History
Received: Jun 1, 2007
Accepted: Dec 22, 2008
Published online: May 15, 2009
Published in print: Jun 2009
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