BTS Updates Datasets to National Transportation Atlas Database, Summer 2026

The U.S. Department of Transportation's (USDOT) Bureau of Transportation Statistics (BTS) today released its summer 2026 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 two (2) new datasets:

1. 2022 National Transportation Noise Map dataset;
2. Maritime Administration (MARAD) Centers of Excellence dataset;

In addition, an update to the Railroad Grade Crossings dataset from the Federal Railroad Administration (FRA) containing a new and modernized database schema has been released, which includes the conversion of data fields and domains previously represented as codes or abbreviations into human understandable descriptors, reducing the complexity and increasing the efficiency of data usability.

The updated layers in this release include:

• 119th Congressional Districts -attributes updated weekly;
• Alternative Fueling Stations - updated daily;
• Aviation Facilities - updated monthly;
• Runways - updated monthly;
• Dams - updated weekly;
• Navigation Facilities - updated monthly;
• Inland Electronic Navigational Charts;
• Nonattainment Areas;
• National Parks;
• Amtrak Routes;
• Adjusted Urban Areas;
• Intercity Bus Atlas (ICBA) Routes;
• Intercity Bus Atlas (ICBA) Stops;
• Federal Motor Carrier Safety Administration (FMCSA) Offices;
• Federal Motor Carrier Safety Administration (FMCSA) Regions;
• North American Rail Network Lines;
• North American Rail Network Nodes;
• Rail Yards;

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(link is external).

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 X(link is external), LinkedIn, and Instagram or subscribe to email updates for announcements of additional dataset releases throughout the year.

Contacts
Media: [email protected](link sends email).
Technical: Dominic Menegus: (202) 306-1587 or [email protected](link sends email).