The U.S. Department of Transportation's Bureau of Transportation Statistics (BTS) released its winter 2026 update to the National Transportation Atlas Database (NTAD) on February 6, 2026. NTAD provides a comprehensive set of nationwide geographic databases covering transportation facilities, networks, and associated infrastructure across all modes.

This update includes 22 refreshed data layers with varying update frequencies to ensure users have access to the most current transportation information available. Updated layers range from daily updates for Alternative Fueling Stations to weekly updates for 119th Congressional Districts and Dams, to monthly updates for Aviation Facilities, Runways, and Navigational Facilities. 

Rail transportation data receives significant updates including North American Rail Network Lines and Nodes, Rail Yards, and Railroad Grade Crossings. Additionally, the release includes updated Adjusted Urban Areas and Inland Electronic Navigational Charts, providing essential planning and operational data for transportation professionals across sectors.

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