Group Effect Enhanced Generative Adversarial Imitation Learning for Individual Travel Behavior Modeling under Incentives

• URL: http://arxiv.org/abs/2509.06656v1
• Date: Mon, 08 Sep 2025 13:14:28 GMT
• Title: Group Effect Enhanced Generative Adversarial Imitation Learning for Individual Travel Behavior Modeling under Incentives
• Authors: Yuanyuan Wu, Zhenlin Qin, Leizhen Wang, Xiaolei Ma, Zhenliang Ma,
• Abstract summary: We propose a group-effect-enhanced generative adversarial imitation learning (gcGAIL) model that improves the individual behavior modeling efficiency.<n>We validate the gcGAIL model using a public transport fare-discount case study and compare against state-of-the-art benchmarks.<n>Results demonstrate that gcGAIL outperforms these methods in learning individual travel behavior responses to incentives over time.
• Score: 8.12279767264402
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Understanding and modeling individual travel behavior responses is crucial for urban mobility regulation and policy evaluation. The Markov decision process (MDP) provides a structured framework for dynamic travel behavior modeling at the individual level. However, solving an MDP in this context is highly data-intensive and faces challenges of data quantity, spatial-temporal coverage, and situational diversity. To address these, we propose a group-effect-enhanced generative adversarial imitation learning (gcGAIL) model that improves the individual behavior modeling efficiency by leveraging shared behavioral patterns among passenger groups. We validate the gcGAIL model using a public transport fare-discount case study and compare against state-of-the-art benchmarks, including adversarial inverse reinforcement learning (AIRL), baseline GAIL, and conditional GAIL. Experimental results demonstrate that gcGAIL outperforms these methods in learning individual travel behavior responses to incentives over time in terms of accuracy, generalization, and pattern demonstration efficiency. Notably, gcGAIL is robust to spatial variation, data sparsity, and behavioral diversity, maintaining strong performance even with partial expert demonstrations and underrepresented passenger groups. The gcGAIL model predicts the individual behavior response at any time, providing the basis for personalized incentives to induce sustainable behavior changes (better timing of incentive injections).

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