National Transportation Atlas Database
Bureau of Transportation Statistics - Open Data Catalog
The NTAD is a collection of national geospatial datasets of modal and intermodal transportation facilities and networks; flows of people, goods, vehicles, and craft over the transportation networks across all modes; and social, economic, and environmental conditions that affect or are affected by the transportation networks. Users can browse, download, and use NTAD data for analytical and visualization purposes. For any questions regarding the NTAD program and its data holdings, please email us at NTAD@dot.gov.
Archived Data
Download national spatial and tabular data for offline viewing/processing
Implementation of national data for web maps/apps