Robustness and Adaptability of Reinforcement Learning-Based Cooperative Autonomous Driving in Mixed-Autonomy Traffic

Building autonomous vehicles (AVs) is a complex problem, but enabling them to operate in the real world where they will be surrounded by human-driven vehicles (HVs) is extremely challenging. Prior works have shown the possibilities of creating inter-agent cooperation between a group of AVs that foll...

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Main Authors: Rodolfo Valiente, Behrad Toghi, Ramtin Pedarsani, Yaser P. Fallah
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Open Journal of Intelligent Transportation Systems
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9770186/
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author Rodolfo Valiente
Behrad Toghi
Ramtin Pedarsani
Yaser P. Fallah
author_facet Rodolfo Valiente
Behrad Toghi
Ramtin Pedarsani
Yaser P. Fallah
author_sort Rodolfo Valiente
collection DOAJ
description Building autonomous vehicles (AVs) is a complex problem, but enabling them to operate in the real world where they will be surrounded by human-driven vehicles (HVs) is extremely challenging. Prior works have shown the possibilities of creating inter-agent cooperation between a group of AVs that follow a social utility. Such altruistic AVs can form alliances and affect the behavior of HVs to achieve socially desirable outcomes. We identify two major challenges in the co-existence of AVs and HVs. First, social preferences and individual traits of a given human driver, e.g., selflessness and aggressiveness are unknown to an AV, and it is almost impossible to infer them in real-time during a short AV-HV interaction. Second, contrary to AVs that are expected to follow a policy, HVs do not necessarily follow a stationary policy and therefore are extremely hard to predict. To alleviate the above-mentioned challenges, we formulate the mixed-autonomy problem as a multi-agent reinforcement learning (MARL) problem and propose a decentralized framework and reward function for training cooperative AVs. Our approach enables AVs to learn the decision-making of HVs implicitly from experience, optimizes for a social utility while prioritizing safety and allowing adaptability; robustifying altruistic AVs to different human behaviors and constraining them to a safe action space. Finally, we investigate the robustness, safety and sensitivity of AVs to various HVs behavioral traits and present the settings in which the AVs can learn cooperative policies that are adaptable to different situations.
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spelling doaj.art-4bf0e8f9b31a4ec6bbf2efef1fa5a5da2022-12-31T00:02:03ZengIEEEIEEE Open Journal of Intelligent Transportation Systems2687-78132022-01-01339741010.1109/OJITS.2022.31729819770186Robustness and Adaptability of Reinforcement Learning-Based Cooperative Autonomous Driving in Mixed-Autonomy TrafficRodolfo Valiente0https://orcid.org/0000-0003-0617-037XBehrad Toghi1Ramtin Pedarsani2https://orcid.org/0000-0002-1126-0292Yaser P. Fallah3Department of Electrical and Computer Engineering, University of Central Florida, Orlando, FL, USADepartment of Electrical and Computer Engineering, University of Central Florida, Orlando, FL, USADepartment of Electrical and Computer Engineering, University of California at Santa Barbara, Santa Barbara, CA, USADepartment of Electrical and Computer Engineering, University of Central Florida, Orlando, FL, USABuilding autonomous vehicles (AVs) is a complex problem, but enabling them to operate in the real world where they will be surrounded by human-driven vehicles (HVs) is extremely challenging. Prior works have shown the possibilities of creating inter-agent cooperation between a group of AVs that follow a social utility. Such altruistic AVs can form alliances and affect the behavior of HVs to achieve socially desirable outcomes. We identify two major challenges in the co-existence of AVs and HVs. First, social preferences and individual traits of a given human driver, e.g., selflessness and aggressiveness are unknown to an AV, and it is almost impossible to infer them in real-time during a short AV-HV interaction. Second, contrary to AVs that are expected to follow a policy, HVs do not necessarily follow a stationary policy and therefore are extremely hard to predict. To alleviate the above-mentioned challenges, we formulate the mixed-autonomy problem as a multi-agent reinforcement learning (MARL) problem and propose a decentralized framework and reward function for training cooperative AVs. Our approach enables AVs to learn the decision-making of HVs implicitly from experience, optimizes for a social utility while prioritizing safety and allowing adaptability; robustifying altruistic AVs to different human behaviors and constraining them to a safe action space. Finally, we investigate the robustness, safety and sensitivity of AVs to various HVs behavioral traits and present the settings in which the AVs can learn cooperative policies that are adaptable to different situations.https://ieeexplore.ieee.org/document/9770186/Behavior planningcooperative drivingmixed-autonomyreinforcement learningrobustness
spellingShingle Rodolfo Valiente
Behrad Toghi
Ramtin Pedarsani
Yaser P. Fallah
Robustness and Adaptability of Reinforcement Learning-Based Cooperative Autonomous Driving in Mixed-Autonomy Traffic
IEEE Open Journal of Intelligent Transportation Systems
Behavior planning
cooperative driving
mixed-autonomy
reinforcement learning
robustness
title Robustness and Adaptability of Reinforcement Learning-Based Cooperative Autonomous Driving in Mixed-Autonomy Traffic
title_full Robustness and Adaptability of Reinforcement Learning-Based Cooperative Autonomous Driving in Mixed-Autonomy Traffic
title_fullStr Robustness and Adaptability of Reinforcement Learning-Based Cooperative Autonomous Driving in Mixed-Autonomy Traffic
title_full_unstemmed Robustness and Adaptability of Reinforcement Learning-Based Cooperative Autonomous Driving in Mixed-Autonomy Traffic
title_short Robustness and Adaptability of Reinforcement Learning-Based Cooperative Autonomous Driving in Mixed-Autonomy Traffic
title_sort robustness and adaptability of reinforcement learning based cooperative autonomous driving in mixed autonomy traffic
topic Behavior planning
cooperative driving
mixed-autonomy
reinforcement learning
robustness
url https://ieeexplore.ieee.org/document/9770186/
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AT behradtoghi robustnessandadaptabilityofreinforcementlearningbasedcooperativeautonomousdrivinginmixedautonomytraffic
AT ramtinpedarsani robustnessandadaptabilityofreinforcementlearningbasedcooperativeautonomousdrivinginmixedautonomytraffic
AT yaserpfallah robustnessandadaptabilityofreinforcementlearningbasedcooperativeautonomousdrivinginmixedautonomytraffic