Empirical Study of Gap-Acceptance Behavior of Right-Turn-on-Red Drivers on Dual Right-Turn Lanes
Publication: Journal of Transportation Engineering
Volume 139, Issue 2
Abstract
Operational performance of right-turn-on-red (RTOR) at signalized intersections is a function of drivers’ gap-acceptance behavior. The objective of this study is to characterize gap-acceptance behavioral patterns of individual RTOR drivers turning from dual right-turn lanes. On the basis of direct field observation, binary logit models were developed, calibrated, and validated, and the attributes that have significant effects on gap-acceptance decisions were identified. The proposed model showed an improved capability of predicting gap-acceptance decisions as opposed to conventional, deterministic methods that may overrepresent aggressive drivers, whereas the deterministic method represents a reasonable trade-off between accuracy and ease of use for dual right-turn lanes. For RTOR drivers turning from a curb right-turn lane, the critical headway decreases on average as they are waiting for an acceptable gap. RTOR drivers turning from an inside right-turn lane did not demonstrate statistically significant evidence of increased impatience while waiting.
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Acknowledgments
This research has benefited from the discussions with Dr. Xuesong Zhou and Dr. Richard J. Porter with the University of Utah. The authors would also like to thank the three anonymous referees for their constructive suggestions. This research is supported in part by the U.S. National Science Foundation (NSF) under Grant No. 1137732.
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 139 • Issue 2 • February 2013
Pages: 173 - 180
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Feb 4, 2012
Accepted: Aug 23, 2012
Published online: Aug 30, 2012
Published in print: Feb 1, 2013
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