A Road-Conditioned Traffic Movie Prediction Network with Spatiotemporal and Structure-Consistent Learning

• URL: http://arxiv.org/abs/2605.27884v1
• Date: Wed, 27 May 2026 03:07:53 GMT
• Title: A Road-Conditioned Traffic Movie Prediction Network with Spatiotemporal and Structure-Consistent Learning
• Abstract summary: Existing traffic movie prediction methods have improved frame-level accuracy, yet many still treat forecasting mainly as image reconstruction.<n>This study proposes RCSNet, a road-temporal network that reformulates traffic movie prediction as topology-guided future-state generation.<n> RCSNet extracts road-aware representations from static road maps models, aligns directional traffic features with local structure, and generates future traffic maps for improved temporal consistency.
• Score: 7.461918364557348
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: City-wide traffic forecasting is important for congestion management, route guidance, and intelligent transportation systems, but accurate prediction remains challenging when future traffic must be generated as spatial maps over an entire urban network. Existing traffic movie prediction methods have improved frame-level accuracy, yet many still treat forecasting mainly as image reconstruction. This can produce traffic maps that are numerically close to the ground truth but weakly constrained by road layout, connectivity, travel direction, and congestion propagation, especially in cross-city settings where both traffic behavior and road structure change. To address this limitation, this study proposes RCSNet, a road-conditioned spatiotemporal network that reformulates traffic movie prediction as topology-guided future-state generation. RCSNet extracts road-aware representations from static road maps, models multi-horizon traffic dynamics from historical observations, aligns directional traffic features with local road structure, and progressively generates future traffic maps for improved temporal consistency. A structure-consistent learning objective further encourages predictions to remain accurate, road-aligned, and spatially stable. Experiments across multiple cities show that RCSNet improves both forecasting accuracy and structural consistency. In same-city forecasting on Berlin, Antwerp, and Moscow, RCSNet reduces average MAE, MSE, and RMSE by 11.5%, 10.0%, and 5.1%, respectively, compared with the closest baseline. In cross-city testing on unseen Chicago and Bangkok, it reduces RMSE by 10.6% and 10.5% without target-city fine-tuning. Additional horizon-wise, road-structure, explainability, statistical, and efficiency analyses show that RCSNet produces more accurate, transferable, road-aligned, and computationally efficient traffic forecasts.

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