National Transportation Atlas Database

The National Transportation Atlas Database (NTAD) is a comprehensive collection of maps and data about transportation networks in the United States. It includes information on roads, railroads, airports, and public transit systems. The purpose of NTAD is to support transportation planning, research, and policy-making by providing accurate geographical and statistical information. By using this database, government agencies, researchers, and the public can analyze transportation patterns, trends, and infrastructure needs, ultimately helping to improve travel safety and efficiency across the nation.