Spatio-temporal dual-stage hypergraph MARL for human-centric multimodal corridor traffic signal control

• URL: http://arxiv.org/abs/2602.17068v1
• Date: Thu, 19 Feb 2026 04:18:50 GMT
• Title: Spatio-temporal dual-stage hypergraph MARL for human-centric multimodal corridor traffic signal control
• Authors: Xiaocai Zhang, Neema Nassir, Milad Haghani,
• Abstract summary: This paper proposes STDSH-MARL (Spatio-Temporal Dual-Stage Hypergraph based Multi-Agent Reinforcement Learning)<n>The proposed method captures dependencies through a novel dual-stage hypergraph attention mechanism that models interactions across both spatial temporal hyperedges.<n> Experiments conducted on a corridor network under five traffic scenarios demonstrate that STDSH-MARL consistently improves multimodal performance and provides clear benefits for public transportation priority.
• Score: 5.728450793445691
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Human-centric traffic signal control in corridor networks must increasingly account for multimodal travelers, particularly high-occupancy public transportation, rather than focusing solely on vehicle-centric performance. This paper proposes STDSH-MARL (Spatio-Temporal Dual-Stage Hypergraph based Multi-Agent Reinforcement Learning), a scalable multi-agent deep reinforcement learning framework that follows a centralized training and decentralized execution paradigm. The proposed method captures spatio-temporal dependencies through a novel dual-stage hypergraph attention mechanism that models interactions across both spatial and temporal hyperedges. In addition, a hybrid discrete action space is introduced to jointly determine the next signal phase configuration and its corresponding green duration, enabling more adaptive signal timing decisions. Experiments conducted on a corridor network under five traffic scenarios demonstrate that STDSH-MARL consistently improves multimodal performance and provides clear benefits for public transportation priority. Compared with state-of-the-art baseline methods, the proposed approach achieves superior overall performance. Further ablation studies confirm the contribution of each component of STDSH-MARL, with temporal hyperedges identified as the most influential factor driving the observed performance gains.

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