To build this important geospatial asset, DOT is leveraging data that transit agencies already make available to the public. DOT is not requiring transit agencies to produce any new GTFS or stop, route, and schedule data. Rather, transit agencies that are already providing this information as open data will be able to participate with little effort.
Transit agencies use their existing Federal Transit Administration (FTA) FACES website accounts to provide a link to their GTFS data.
By registering their data in this application, agencies authorize DOT to use the data. To allow the use of the data, transit agencies must grant the DOT a Creative Commons Attribution 3.0 United States (CC-BY-3.0) license. The license gives DOT the right to access and use the agency's transit data periodically. FTA will transmit these links to the Bureau of Transportation Statistics (BTS).
BTS collects the data and combines them into the National Transit Layer by pulling the data feeds, extracting data from the GTFS feeds, and translating and loading the data into one national geospatial database. DOT’s goal is to develop and publish updates to the National Transit Map several times a year.