Flow: A Modular Learning Framework for Mixed Autonomy Traffic

The rapid development of autonomous vehicles (AVs) holds vast potential for transportation systems through improved safety, efficiency, and access to mobility. However, the progression of these impacts, as AVs are adopted, is not well understood. Numerous technical challenges arise from the goal...

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Main Authors: Wu, Cathy, Kreidieh, Abdul Rahman, Parvate, Kanaad, Vinitsky, Eugene, Bayen, Alexandre M
Other Authors: Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Format: Article
Language:English
Published: Institute of Electrical and Electronics Engineers (IEEE) 2023
Online Access:https://hdl.handle.net/1721.1/148679
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author Wu, Cathy
Kreidieh, Abdul Rahman
Parvate, Kanaad
Vinitsky, Eugene
Bayen, Alexandre M
author2 Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
author_facet Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Wu, Cathy
Kreidieh, Abdul Rahman
Parvate, Kanaad
Vinitsky, Eugene
Bayen, Alexandre M
author_sort Wu, Cathy
collection MIT
description The rapid development of autonomous vehicles (AVs) holds vast potential for transportation systems through improved safety, efficiency, and access to mobility. However, the progression of these impacts, as AVs are adopted, is not well understood. Numerous technical challenges arise from the goal of analyzing the partial adoption of autonomy: partial control and observation, multi-vehicle interactions, and the sheer variety of scenarios represented by real-world networks. To shed light into near-term AV impacts, this article studies the suitability of deep reinforcement learning (RL) for overcoming these challenges in a low AV-adoption regime. A modular learning framework is presented, which leverages deep RL to address complex traffic dynamics. Modules are composed to capture common traffic phenomena (stop-and-go traffic jams, lane changing, intersections). Learned control laws are found to improve upon human driving performance, in terms of system-level velocity, by up to 57% with only 4-7% adoption of AVs. Furthermore, in single-lane traffic, a small neural network control law with only local observation is found to eliminate stop-and-go traffic - surpassing all known model-based controllers to achieve near-optimal performance - and generalize to out-of-distribution traffic densities.
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spelling mit-1721.1/1486792023-03-24T03:54:28Z Flow: A Modular Learning Framework for Mixed Autonomy Traffic Wu, Cathy Kreidieh, Abdul Rahman Parvate, Kanaad Vinitsky, Eugene Bayen, Alexandre M Massachusetts Institute of Technology. Department of Civil and Environmental Engineering The rapid development of autonomous vehicles (AVs) holds vast potential for transportation systems through improved safety, efficiency, and access to mobility. However, the progression of these impacts, as AVs are adopted, is not well understood. Numerous technical challenges arise from the goal of analyzing the partial adoption of autonomy: partial control and observation, multi-vehicle interactions, and the sheer variety of scenarios represented by real-world networks. To shed light into near-term AV impacts, this article studies the suitability of deep reinforcement learning (RL) for overcoming these challenges in a low AV-adoption regime. A modular learning framework is presented, which leverages deep RL to address complex traffic dynamics. Modules are composed to capture common traffic phenomena (stop-and-go traffic jams, lane changing, intersections). Learned control laws are found to improve upon human driving performance, in terms of system-level velocity, by up to 57% with only 4-7% adoption of AVs. Furthermore, in single-lane traffic, a small neural network control law with only local observation is found to eliminate stop-and-go traffic - surpassing all known model-based controllers to achieve near-optimal performance - and generalize to out-of-distribution traffic densities. 2023-03-23T16:44:16Z 2023-03-23T16:44:16Z 2022 2023-03-23T15:53:46Z Article http://purl.org/eprint/type/ConferencePaper https://hdl.handle.net/1721.1/148679 Wu, Cathy, Kreidieh, Abdul Rahman, Parvate, Kanaad, Vinitsky, Eugene and Bayen, Alexandre M. 2022. "Flow: A Modular Learning Framework for Mixed Autonomy Traffic." IEEE Transactions on Robotics, 38 (2). en 10.1109/TRO.2021.3087314 IEEE Transactions on Robotics Creative Commons Attribution-Noncommercial-Share Alike https://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Institute of Electrical and Electronics Engineers (IEEE) arXiv
spellingShingle Wu, Cathy
Kreidieh, Abdul Rahman
Parvate, Kanaad
Vinitsky, Eugene
Bayen, Alexandre M
Flow: A Modular Learning Framework for Mixed Autonomy Traffic
title Flow: A Modular Learning Framework for Mixed Autonomy Traffic
title_full Flow: A Modular Learning Framework for Mixed Autonomy Traffic
title_fullStr Flow: A Modular Learning Framework for Mixed Autonomy Traffic
title_full_unstemmed Flow: A Modular Learning Framework for Mixed Autonomy Traffic
title_short Flow: A Modular Learning Framework for Mixed Autonomy Traffic
title_sort flow a modular learning framework for mixed autonomy traffic
url https://hdl.handle.net/1721.1/148679
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AT vinitskyeugene flowamodularlearningframeworkformixedautonomytraffic
AT bayenalexandrem flowamodularlearningframeworkformixedautonomytraffic