National Transportation Atlas Database
The National Transportation Atlas Database is a set of nationwide geographic databases of transportation facilities, transportation networks, and associated infrastructure. These datasets include spatial information for transportation modal networks and intermodal terminals, as well as the related attribute information for these features. Metadata documentation, as prescribed by the Federal Geographic Data Committee, is also provided for each database. The data support research, analysis, and decision-making across all modes of transportation. They are most useful at the national level, but have major applications at regional, state, and local scales throughout the transportation community.
The database is available in the following years and formats:
- NTAD 2012 (online and DVD)
- NTAD 2011 (online and DVD)
- NTAD 2010 (DVD only)
- NTAD 2009 (DVD only)
- NTAD 2008 (DVD only)