Multi-vessel Interaction-Aware Trajectory Prediction and Collision Risk Assessment

• URL: http://arxiv.org/abs/2509.01836v1
• Date: Mon, 01 Sep 2025 23:38:01 GMT
• Title: Multi-vessel Interaction-Aware Trajectory Prediction and Collision Risk Assessment
• Authors: Md Mahbub Alam, Jose F. Rodrigues-Jr, Gabriel Spadon,
• Abstract summary: We present a transformer-based framework for multi-vessel trajectory prediction with integrated collision risk analysis.<n>We evaluate the model on large-scale real-world AIS data using joint multi-vessel metrics.
• Score: 0.3277163122167433
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Accurate vessel trajectory prediction is essential for enhancing situational awareness and preventing collisions. Still, existing data-driven models are constrained mainly to single-vessel forecasting, overlooking vessel interactions, navigation rules, and explicit collision risk assessment. We present a transformer-based framework for multi-vessel trajectory prediction with integrated collision risk analysis. For a given target vessel, the framework identifies nearby vessels. It jointly predicts their future trajectories through parallel streams encoding kinematic and derived physical features, causal convolutions for temporal locality, spatial transformations for positional encoding, and hybrid positional embeddings that capture both local motion patterns and long-range dependencies. Evaluated on large-scale real-world AIS data using joint multi-vessel metrics, the model demonstrates superior forecasting capabilities beyond traditional single-vessel displacement errors. By simulating interactions among predicted trajectories, the framework further quantifies potential collision risks, offering actionable insights to strengthen maritime safety and decision support.

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