Commute Time to Work: The U.S. Census Bureau has provided this data since 2005.
Housing and Transportation Index: Provided by the Center for Neighborhood Technology, this index shows housing and transportation costs at a neighborhood level.
FAA Passenger and Cargo Data: Extracted from the Air Carrier Activity Information System, this database provides trend data on activity in all U.S. airports.
National Transportation Statistics: Provided by the U.S. Department of Transportation, this data gives users insights on national transportation trends.
Walk Score: This indicator site provides users with information on the ‘walkabilty’ of their city (towns with 2,500 people or more), as well as rental and dining options.