The Airports dataset includes all official and operational aerodromes as of July 16, 2020 and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The Airports database is a geographic point database of official operational aerodromes in the United States and U.S. Territories. Attribute data is provided on the physical and operational characteristics of the aerodrome, current usage including enplanements and aircraft operations, congestion levels and usage categories. This geospatial data is derived from the FAA's National Airspace System Resource Aeronautical Data Product.

Docked bikeshare stations that can be reached traveling via the road network in a given amount of time (10 or 20 minutes) when starting at a specified docking station. Times were calculated using the street network and a travel speed of 10 miles per hour but straight lines are used to represent the docked bikeshare stations that can be reached. Topography is not taken into account but the type of road is taken in account.

Visualization available at: https://data.bts.gov/stories/s/8s3h-vvui

This site lists the Transportation Economic Trends (TET) topics, charts and tables, and the schedule of updates.