Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
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| URI | http://purl.tuc.gr/dl/dias/C6FE9FFC-EB4F-4AAC-B358-A2ABCE3F4134 | - |
| Αναγνωριστικό | https://doi.org/10.1016/j.trc.2021.103478 | - |
| Αναγνωριστικό | https://www.sciencedirect.com/science/article/pii/S0968090X21004642 | - |
| Γλώσσα | en | - |
| Μέγεθος | 25 pages | en |
| Τίτλος | Ego-efficient lane changes of connected and automated vehicles with impacts on traffic flow | en |
| Δημιουργός | Wang Yibing | en |
| Δημιουργός | Wang Long | en |
| Δημιουργός | Guo Jingqiu | en |
| Δημιουργός | Papamichail Ioannis | en |
| Δημιουργός | Παπαμιχαηλ Ιωαννης | el |
| Δημιουργός | Papageorgiou Markos | en |
| Δημιουργός | Παπαγεωργιου Μαρκος | el |
| Δημιουργός | Wang Feiyue | en |
| Δημιουργός | Bertini Robert L. | en |
| Δημιουργός | Hua Wei | en |
| Δημιουργός | Yang Qinmin | en |
| Εκδότης | Elsevier | en |
| Περίληψη | Connected and automated vehicles (CAVs) enabled by wireless communication and vehicle automation are believed to revolutionize the form and operation of road transport in the next decades. This paper addresses traffic flow effects of CAVs, and focuses on their lane-changing impacts on the mixed traffic flow of CAVs and human-driven vehicles (HVs). At present technical paths towards the development and deployment of CAVs are still uncertain. With CAV technologies getting matured, CAVs are supposed to provide rides of higher efficiency than HVs, beyond improved safety and comfort. In heavy traffic, this would only be achievable via agile and flexible lane changes of CAVs, because longitudinal acceleration would be unhelpful or even impossible in mixed traffic. Such lane changes are expected to be ego-efficient in that they serve solely CAVs’ interests without much considering surrounding vehicles, as long as safety constraints are not violated. As road resources are limited, the growth of the CAV population adopting such ego-efficient lane-changing strategies would probably lead to renowned “Tragedy of the Commons”. In this context, this paper considers three important prospective questions: A: How to determine an ego-efficient lane-changing strategy for CAVs? B: With increasingly more CAVs introduced each adopting the ego-efficient lane-changing strategy, what is the impact on traffic flow? C: How to determine a system-efficient lane-changing strategy for CAVs? These forward-looking issues are addressed from the perspectives of microscopic traffic simulation and reinforcement learning. Without any constraint on the lane-changing incentive, the developed lane-changing strategy was found to be beneficial for CAVs and the entire traffic flow only if the market penetration rate (MPR) of CAVs is less than 50%. With an appropriate constraint placed, however, the lane-changing strategy was found to become consistently beneficial for the entire traffic flow at any MPR. These findings suggest that CAVs may not simply be a magic cure for traffic problems that the society is currently facing, unless some upper-level coordination may be proposed for CAVs to benefit not only themselves but also the entire traffic. This is also consistent with what “Tragedy of the Commons” suggests. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2024-02-01 | - |
| Ημερομηνία Δημοσίευσης | 2022 | - |
| Θεματική Κατηγορία | Connected and automated vehicles | en |
| Θεματική Κατηγορία | Ego-efficient lane changes | en |
| Θεματική Κατηγορία | Traffic flow impacts | en |
| Θεματική Κατηγορία | Microscopic simulation | en |
| Θεματική Κατηγορία | Reinforcement learning | en |
| Βιβλιογραφική Αναφορά | Y. Wang, L. Wang, J. Guo, I. Papamichail, M. Papageorgiou, F.-Y. Wang, R. Bertini, W. Hua, and Q. Yang, “Ego-efficient lane changes of connected and automated vehicles with impacts on traffic flow,” Transp. Res. Part C Emerging Technol., vol. 138, May 2022, doi: 10.1016/j.trc.2021.103478. | en |
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