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Title: Learning-based traffic signal control algorithms with neighborhood information sharing: An application for sustainable mobility

Journal Article · · Journal of Intelligent Transportation Systems
ORCiD logo [1];  [2];  [2]
  1. Oak Ridge National Laboratory, Urban Dynamics Institute, 1 Bethel Valley Road, TN, USA
  2. Lyles School of Civil Engineering, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN, USA

Here, this research applies R-Markov Average Reward Technique based reinforcement learning (RL) algorithm, namely RMART, for vehicular signal control problem leveraging information sharing among signal controllers in connected vehicle environment. We implemented the algorithm in a network of 18 signalized intersections and compare the performance of RMART with fixed, adaptive, and variants of the RL schemes. Results show significant improvement in system performance for RMART algorithm with information sharing over both traditional fixed signal timing plans and real time adaptive control schemes. Additionally, the comparison with reinforcement learning algorithms including Q learning and SARSA indicate that RMART performs better at higher congestion levels. Further, a multi-reward structure is proposed that dynamically adjusts the reward function with varying congestion states at the intersection. Finally, the results from test networks show significant reduction in emissions (CO, CO2, NOx, VOC, PM10) when RL algorithms are implemented compared to fixed signal timings and adaptive schemes.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1415195
Journal Information:
Journal of Intelligent Transportation Systems, Vol. 22, Issue 1; ISSN 1547-2450
Publisher:
Taylor & FrancisCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 34 works
Citation information provided by
Web of Science

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Cited By (4)

Asynchronous n -step Q-learning adaptive traffic signal control journal January 2019
Optimizing multi-agent based urban traffic signal control system journal October 2018
Network-wide traffic signal control based on the discovery of critical nodes and deep reinforcement learning journal January 2019
Cooperative Bargain for the Autonomous Separation of Traffic Flows in Smart Reversible Lanes journal October 2019