The answer is not pure federation, but a pragmatic hybrid model. Sensitive data stays on-premise, while less critical or synthetic data fuels centralized training.\n- Federated Core, Centralized Periphery: Train a base route optimization model federated on non-sensitive metrics (e.g., anonymized traffic patterns), then fine-tune locally with proprietary data (e.g., client contracts, exact warehouse layouts).\n- Synthetic Data Bridges: Use generative AI to create privacy-compliant synthetic datasets from federated insights, enabling more efficient centralized training for non-critical tasks.\n- Strategic Model Segmentation: Decompose the logistics AI stack, applying federation only to components where data privacy is paramount, like demand forecasting, while using classical optimization for public-domain routing.