Optimal Design of an Isolated Signalized Intersection with Double Stop Lines for Mixed Traffic
Publication: Journal of Transportation Engineering, Part A: Systems
Volume 147, Issue 12
Abstract
Control strategies with pre and main signal have been increasingly researched and practiced. With the transformative effect of connected and automated vehicles (CAVs), more possibilities have been created, and the long-time mix of CAVs with manual vehicles (MVs) has inspired radical change to the unconventional intersection with double stop lines. Specifically, the study is oriented with CAV controllability to facilitate vehicle passage throughout the intersection, by allowing CAVs to make use of yellow light at the presignal under in-vehicle control. To avoid spill-over and better clear vehicles on the approach, the distance from pre to main signal is constrained so that vehicles can queue upstream and pass the main stop line in time, under the objective of maximizing intersection reserve capacity. The proposed model is solved with iteration, and is found to reduce signal cycle, avoid spill-over, and enhance reserve capacity by larger margin as CAV penetration rate increases. This study provides insights to the design and control of intersections with double stop lines under mixed traffic flow, laying foundation to traffic conversion from MV to CAV.
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Data Availability Statement
Data of traffic demand and road layout as well as code of the proposed model that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This work has been supported by National Key R&D Program of China (No. 2018YFB1600600) and National Natural Science Foundation of China (Grant No. 52002261), and in no conflict of interest.
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Journal of Transportation Engineering, Part A: Systems
Volume 147 • Issue 12 • December 2021
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Feb 23, 2021
Accepted: Aug 17, 2021
Published online: Sep 25, 2021
Published in print: Dec 1, 2021
Discussion open until: Feb 25, 2022
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Cited by
- Hongbo Yi, Yugang Liu, Liying Tang, Jiali Li, Hybrid Intersection with Pre-signal: An Innovative Approach to Increase Intersection Capacity, 2023 7th International Conference on Transportation Information and Safety (ICTIS), 10.1109/ICTIS60134.2023.10243676, (1815-1823), (2023).