The U.S. Department of Transportation’s (USDOT) Bureau of Transportation Statistics (BTS) today released its winter 2025 update to the National Transportation Atlas Database (NTAD), a set of nationwide geographic databases of transportation facilities, networks, and associated infrastructure.

This data release features the addition of four (4) new datasets:

1. Ports and Port Statistical Areas from the US Army Corps (USACE);
2. Intermodal Freight layer showing where liquid bulk movements between two or more modes occur¹;
3. 2023 Highway Performance Monitoring System (HPMS)¹; and
4. Intermodal Passenger Facility layer for Amtrak Stations represented as polygons.

Distinguishing itself from the Amtrak Stations point layer on NTAD, the new Intermodal Passenger Facility layer depicts Amtrak Stations that are served by train service and have a building and a waiting room. The layer is the first of more layers to come representing Intermodal Passenger Facilities across the nation.

The updated layers in this release include:

• 119th Congressional Districts –attributes updated weekly (the 119th Congress began January 3rd 2025);
• Alternative Fuel Corridors;
• Alternative Fueling Stations – updated daily;
• Amtrak Stations;
• Aviation Facilities – updated monthly;
• Bikeshare Scooter Systems;
• Dams – updated weekly;
• Household Size by Vehicles Available;
• Inland Electronic Navigational Charts;
• Intercity Bus Atlas Routes;
• Intercity Bus Atlas Stops;
• Link Tonnages;
• Means of Transportation to Work;
• Metropolitan Planning Organizations (MPOs);
• Military Bases;
• National Parks;
• National Transit Map Agencies;
• National Transit Map Routes;
• National Transit Map Stops;
• Nonattainment Areas;
• North American Rail Network Lines;
• North American Rail Network Nodes;
• Railroad Grade Crossings;
• Rail Yards;
• Runways – updated monthly;
• Travel Time to Work;

About the National Transportation Atlas Database

NTAD data is available for download in the following formats: File Geodatabase, Shapefile, GeoJSON, comma-separated values (CSV), Keyhole Markup Language (KML), and more through the BTS Geospatial Data Catalog. Additionally, Web Feature Services (WFS) are available for NTAD datasets.

Download our public catalog offering and locate the ‘URL’ column to find a dataset’s web service URL. Vector Tile services are available for select NTAD datasets and are best used for cartographic and visualization purposes, and may be found in the NTAD Vector Tile Group.

BTS now uses a dynamic NTAD publication cycle, with updated data released throughout the year as they become available from their respective government agencies. Follow BTS on Twitter, LinkedIn, and Instagram or subscribe to email updates for announcements of additional dataset releases throughout the year. 
 

¹HPMS2023 and Intermodal Freight Facilities – Liquid Bulk have been added to the NTAD as BETA releases. For any feedback on these layers, please email ntad@dot.gov.