A junction-tree based learning algorithm to optimize network wide traffic control: A coordinated multi-agent framework
- Purdue Univ., West Lafayette, IN (United States)
Our study develops a novel reinforcement learning algorithm for the challenging coordinated signal control problem. Traffic signals are modeled as intelligent agents interacting with the stochastic traffic environment. The model is built on the framework of coordinated reinforcement learning. The Junction Tree Algorithm (JTA) based reinforcement learning is proposed to obtain an exact inference of the best joint actions for all the coordinated intersections. Moreover, the algorithm is implemented and tested with a network containing 18 signalized intersections in VISSIM. Finally, our results show that the JTA based algorithm outperforms independent learning (Q-learning), real-time adaptive learning, and fixed timing plans in terms of average delay, number of stops, and vehicular emissions at the network level.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE, National Science Foundation (NSF)
- Grant/Contract Number:
- AC05-00OR22725; 1004528; 104IPY04
- OSTI ID:
- 1265896
- Journal Information:
- Transportation Research Part C: Emerging Technologies, Vol. 58, Issue PC; ISSN 0968-090X
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
A Simultaneous Solution for Reserve Capacity Maximization and Delay Minimization Problems in Signalized Road Networks
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journal | May 2019 |
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