National Transit Database
The National Transit Database (NTD) is the Federal Transit Administration's (FTA's) primary national database for statistics on the transit industry. Recipients of Federal transportation funds are required to report a wide range of agency data on an annual basis. Given the level of data reported, these are typically published more than a year after the reporting period.
For additional agency-specific information provided by the National Transit Database, clicking on the link below will take you directly to the search box to search for a specific agency.
United States Urbanized Areas
Within the transportation planning community Urbanized Areas are typically referred to as UZAs. An Urbanized Area is a statistical geographic entity designated by the Census Bureau, consisting of a central core and adjacent densely settled territory that together contain at least 50,000 people, generally with an overall population density of at least 1,000 people per square mile.
Bureau of Transportation Statistics
The Bureau of Transportation Statistics (BTS), as part of the United States Department of Transportation, compiles, analyzes, and makes accessible information on the nation's transportation systems; collects information on intermodal transportation and other areas as needed; and improves the quality and effectiveness of DOT's statistical programs through research, development of guidelines, and promotion of improvements in data acquisition and use.
American Community Survey
The American Community Survey (ACS) is the US Census Bureau annual survey of demographic, social, and economic data, including journey-to-work statistics. The ACS is described on its home page and data from the 2009 and earlier ACS surveys can be accessed at American FactFinder. The ACS reports commuter data for a variety of geographies and differentiated by selected demographic characteristics.