Reinforcement Learning for Mixed Autonomy Intersections

We propose a model-free reinforcement learning method for controlling mixed autonomy traffic in simulated traffic networks with through-traffic-only two-way and four-way intersections. Our method utilizes multi-agent policy decomposition which allows decentralized control based on local observati...

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Bibliographic Details
Main Authors: Yan, Zhongxia, Wu, Cathy
Other Authors: Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Format: Article
Language:English
Published: IEEE 2023
Online Access:https://hdl.handle.net/1721.1/148680
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author Yan, Zhongxia
Wu, Cathy
author2 Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
author_facet Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Yan, Zhongxia
Wu, Cathy
author_sort Yan, Zhongxia
collection MIT
description We propose a model-free reinforcement learning method for controlling mixed autonomy traffic in simulated traffic networks with through-traffic-only two-way and four-way intersections. Our method utilizes multi-agent policy decomposition which allows decentralized control based on local observations for an arbitrary number of controlled vehicles. We demonstrate that, even without reward shaping, reinforcement learning learns to coordinate the vehicles to exhibit traffic signal-like behaviors, achieving near-optimal throughput with 33-50% controlled vehicles. With the help of multi-task learning and transfer learning, we show that this behavior generalizes across inflow rates and size of the traffic network. Our code, models, and videos of results are available at https://github.com/ZhongxiaYan/mixed_autonomy_intersections.
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spelling mit-1721.1/1486802023-03-24T03:50:40Z Reinforcement Learning for Mixed Autonomy Intersections Yan, Zhongxia Wu, Cathy Massachusetts Institute of Technology. Department of Civil and Environmental Engineering We propose a model-free reinforcement learning method for controlling mixed autonomy traffic in simulated traffic networks with through-traffic-only two-way and four-way intersections. Our method utilizes multi-agent policy decomposition which allows decentralized control based on local observations for an arbitrary number of controlled vehicles. We demonstrate that, even without reward shaping, reinforcement learning learns to coordinate the vehicles to exhibit traffic signal-like behaviors, achieving near-optimal throughput with 33-50% controlled vehicles. With the help of multi-task learning and transfer learning, we show that this behavior generalizes across inflow rates and size of the traffic network. Our code, models, and videos of results are available at https://github.com/ZhongxiaYan/mixed_autonomy_intersections. 2023-03-23T16:44:30Z 2023-03-23T16:44:30Z 2021 2023-03-23T15:48:02Z Article http://purl.org/eprint/type/ConferencePaper https://hdl.handle.net/1721.1/148680 Yan, Zhongxia and Wu, Cathy. 2021. "Reinforcement Learning for Mixed Autonomy Intersections." 2021 IEEE International Intelligent Transportation Systems Conference (ITSC). en 10.1109/ITSC48978.2021.9565000 2021 IEEE International Intelligent Transportation Systems Conference (ITSC) Creative Commons Attribution-Noncommercial-Share Alike https://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf IEEE arXiv
spellingShingle Yan, Zhongxia
Wu, Cathy
Reinforcement Learning for Mixed Autonomy Intersections
title Reinforcement Learning for Mixed Autonomy Intersections
title_full Reinforcement Learning for Mixed Autonomy Intersections
title_fullStr Reinforcement Learning for Mixed Autonomy Intersections
title_full_unstemmed Reinforcement Learning for Mixed Autonomy Intersections
title_short Reinforcement Learning for Mixed Autonomy Intersections
title_sort reinforcement learning for mixed autonomy intersections
url https://hdl.handle.net/1721.1/148680
work_keys_str_mv AT yanzhongxia reinforcementlearningformixedautonomyintersections
AT wucathy reinforcementlearningformixedautonomyintersections