The National Network dataset is as of December 22, 2020 and is from the Federal Highway Administration (FHWA) along with the Bureau of Transportation Statistics (BTS), and part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’ (BTS') National Transportation Atlas Database (NTAD). The National Network was authorized by the Surface Transportation Assistance Act of 1982 (P.L. 97-424) and specified in the U.S. Code of Federal Regulations (23 CFR 658) to require states to allow conventional combinations on "the Interstate System and those portions of the Federal-aid Primary System serving to link principal cities and densely developed portions of the states on high volume routes utilized extensively by large vehicles for interstate commerce which do not have any unusual characteristics causing current or anticipated safety problems. “The National Network (NN) includes almost all of the Interstate Highway System and other, specified non-Interstate highways. The network comprises more than 200,000 miles of highways. The National Network supports interstate commerce by regulating the size of trucks. This file is a geospatial representation of the National Network as described in 23 CFR 658 Appendix A and should not be interpreted as the official National Network and should not be used for truck size and weight enforcement purposes or for navigation.

The Means of Transportation to Work dataset was compiled using information from December 31, 2023 and updated December 12, 2024 from the Bureau of Transportation Statistics (BTS) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The Means of Transportation to Work table from the 2023 American Community Survey (ACS) 5-year estimates was joined to 2023 tract-level geographies for all 50 States, District of Columbia and Puerto Rico provided by the Census Bureau. A new file was created that combines the demographic variables from the former with the cartographic boundaries of the latter. The national level census tract layer contains data on the number and percentage of commuters (workers 16 years and over) that used various transportation modes to get to work.

Recognizing the importance of transportation and the importance of objective statistics for transportation decision-making, Congress requires the Director of the Bureau of Transportation Statistics (BTS) of the U.S. Department of Transportation (USDOT) to provide the Transportation Statistics Annual Report (TSAR) each year to Congress and the President.1 BTS published the first TSAR in 1994. This 30th TSAR edition documents the conduct of the duties of BTS as called out in the statute.Source: https://rosap.ntl.bts.gov/view/dot/79039The Transportation Statistics Annual Report (TSAR) describes the Nation’s transportation system, the system’s performance, its contributions to the economy, and its effects on people and the environment. This report is based on information collected or compiled by the Bureau of Transportation Statistics (BTS), a principle Federal statistical agency at the U.S. Department of Transportation.Source: https://www.bts.gov/product/transportation-statistics-annual-reportThis upload contains xlsx files supporting the 2023 (https://rosap.ntl.bts.gov/view/dot/72943) and 2024 (https://rosap.ntl.bts.gov/view/dot/79039) TSARs.The two readme files were created for this upload and were not produced by the BTS.

The Travel Time to Work dataset was compiled using information from December 31, 2023 and updated December 12, 2024 from the Bureau of Transportation Statistics (BTS) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The Travel Time to Work table from the 2023 American Community Survey (ACS) 5-year estimates was joined to 2023 tract-level geographies for all 50 States, District of Columbia and Puerto Rico provided by the Census Bureau. A new file was created that combines the demographic variables from the former with the cartographic boundaries of the latter. The national level census tract layer contains data on the number and percentage of commuters (workers 16 years and over who did not work from home) with a range of travel times to work.

Source: U.S. Department of Transportation, Bureau of Transportation Statistics, based upon U.S. Department of Commerce, U.S. Census Bureau, Foreign Trade Division, USA Trade Online, "HS Port-level Data", available at https://usatrade.census.gov/ as of Sept 2024.

Source: U.S. Department of Transportation, Bureau of Transportation Statistics based upon U.S. Department of Commerce, U.S. Census Bureau, Foreign Trade Division, USA Trade Online, "HS Port-level Data", available at https://usatrade.census.gov/ as of Sept 2024.

The T-100 Domestic Market and Segment Data dataset was downloaded on June 06, 2024 from the Bureau of Transportation Statistics (BTS) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The database includes data obtained from a 100 percent census of BTS Form 41 schedule submissions by large certificated air carriers. It shows 2023 statistics for all domestic airports operated by US carriers, and all information are totals for the year. This dataset is a combination of both T-100 Market and T-100 Segments datasets. The T-100 Market includes enplanement data, and T-100 Segment data includes arrivals, departures, freight, and mail. Data is by origin airport.

Source: U.S. Department of Transportation, Bureau of Transportation Statistics, based upon U.S. Department of Commerce, U.S. Census Bureau, Foreign Trade Division, USA Trade Online, "HS Port-level Data", available at https://usatrade.census.gov/ as of Sept 2024.

The Amtrak Routes dataset is as of June 18, 2019 from the Federal Railroad Administration (FRA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’ (BTS') National Transportation Atlas Database (NTAD). This dataset is a single line representation of unique routes that are generated from the North American Railroad Network (Amtrak). It contains information on ownership, trackage rights, type, passenger, STRACNET, and geographic reference of the Amtrak system at 1:24,000 or better and the dataset covers all 50 states and the District of Columbia.

The National Transit Map - Agencies dataset was compiled on June 02, 2025 from the Bureau of Transportation Statistics (BTS) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The National Transit Map (NTM) is a nationwide catalog of fixed-guideway and fixed-route transit service in America. It is compiled using General Transit Feed Specification (GTFS) Schedule data. The GTFS Schedule documentation is available at, https://gtfs.org/schedule/. The NTM Agencies dataset represents the physical addresses of participating transit agencies. Regarding data coverage and licenses, starting in Report Year 2023, the Federal Transit Administration (FTA) has required National Transit Database (NTD) Reporters to submit General Transit Feed Specification (GTFS) data. Reporters will submit GTFS during their reporting period, which is determined by their fiscal year end date. All GTFS data submitted to the NTD will enter the public domain. Prior to the GTFS requirement, transit agencies voluntarily participated in the NTM and granted the U.S. Department of Transportation (USDOT) a Creative Commons Attribution 3.0 United States (CC-BY-3.0) license. The CC-BY-3.0 license is available at, https://creativecommons.org/licenses/by/3.0/us/legalcode. A data dictionary, or other source of attribute information, is accessible at https://doi.org/10.21949/1529047

The Intermodal Freight Facilities dataset was compiled on February 02, 2021 and was updated on September 08, 2023 from the Bureau of Transportation Statistics (BTS) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The Intermodal Freight Facilities dataset is comprised of various layers, showing transfer/transloading locations of various commodities which don't change state. Layers included are for the TOFC/COFC commodity, Air to Truck freight transfer locations, Marine/Port Roll-On/Roll-Off commodity transfer locations, and a layer for commodities transferred via pipelines to other modes. These layers were listed as one dataset until 2019 when the layers each became their own individual dataset. The descriptions are listed below: TOFC/COFC: When available, primary sources for this dataset were the websites of the ports, as well as port operators. Every facility is associated with a port and assumed to be served by both marine and truck, and those facilities which support rail operations, the reporting code for the operating rail company is also identified. The dataset also includes at least one Navigation Unit ID (NAV_UNIT_ID) from the U.S. Army Corps of Engineers (USACE) Port Facilities dataset which is associated with the Ro/Ro terminal. This dataset is one of several layers in the Bureau of Transportation Statistics (BTS) Intermodal Freight Facility Database. Air-to-Truck: This dataset includes air to truck intermodal freight facilities for the top 60 airports by total freight moved in 2017. This dataset is one of several layers in the Bureau of Transportation Statistics (BTS) Intermodal Freight Facility Database. Marine Roll-on/Roll-off: When available, primary sources for this dataset were the websites of the ports, as well as port operators. Every facility is associated with a port and assumed to be served by both marine and truck, and those facilities which support rail operations, the reporting code for the operating rail company is also identified. The dataset also includes at least one Navigation Unit ID (NAV_UNIT_ID) from the U.S. Army Corps of Engineers (USACE) Port Facilities dataset which is associated with the Ro/Ro terminal. This dataset is one of several layers in the Bureau of Transportation Statistics (BTS) Intermodal Freight Facility Database. Pipelines: Pipeline terminals interface between pipeline mode and other transportation modes. They have the ability to receive or deliver freight commodities via pipeline and truck/rail/water. The data consists of _location information, truck/rail/water mode connections, storage capacity, and a list of commodities handled at the terminal. Geographical coverage includes the United States and U.S. territories. This dataset is one of several layers in the Bureau of Transportation Statistics (BTS) Intermodal Freight Facility Database.

Freight Facts and Figures, developed by the Bureau of Transportation Statistics, is a collection of charts and statistical tables about freight transportation in the United States. These visualizations provide a snapshot of freight movement; the extent, condition, and performance of the freight transportation system; the economic characteristics of the transportation industry and its contribution to the U.S. economy; and the safety, energy, and environmental impacts of freight transportation.

This dataset details vehicle types and ages for each transit agency reporting to the NTD in the 2022 and 2023 report years. Non-dedicated fleets do not report Year of Manufacture and are thus excluded from the Age Distribution table.

Agencies do not report Useful Life Benchmark for non-dedicated fleets or fleets for which the agency does not have capital replacement responsibility. These fleets are excluded from calculations of the percentage of vehicles meeting or exceeding their useful life.

In versions of the data tables from before 2014, you can find data on vehicles in the file called "Age Distribution of Active Vehicle Inventory."

In years 2014-2021, you can find this data in the "Vehicles" data table on NTD Program website, at https://transit.dot.gov/ntd/ntd-data.

If you have any other questions about this table, please contact the NTD Help Desk at NTDHelp@dot.gov.

The Spaceports dataset was compiled on August 08, 2023 from the Bureau of Transportation Statistics (BTS) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). This layer is meant to be a reference layer and features public and private spaceport facilities in the United States. The information found on FAA’s Office of Spaceports was used in creating this layer by the Bureau of Transportation Statistics (BTS), found here https://www.faa.gov/space/office_spaceports. These facilities support the launching and receiving of spacecraft into and from space. As a result, U.S. spaceports have a critical role in the growing global commercial space transportation industry. The FAA Office of Spaceports is responsible for development of policies that promote infrastructure improvements and strengthen the competitiveness of U.S. spaceports, supporting launch and reentry site licensing activities, providing technical assistance and guidance to existing and proposed new spaceports, and the domestic and global promotion of U.S. spaceports. The mission of the FAA’s Office of Spaceports is to enable the safest, most efficient network of launch and reentry spaceports in the world, along with a vision to advance a robust, innovative national system of spaceports supporting the U.S. as a global leader in the commercial space transportation industry.

The National Highway Planning Network (NHPN) dataset was compiled on May 01, 2014 from the Federal Highway Administration (FHWA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). This dataset is a comprehensive network database of the nation's major highway system. It consists of the nation's highways comprised of Rural Arterials, Urban Principal Arterials and all National Highway System routes. The data set covers the 48 contiguous States plus the District of Columbia, Alaska, Hawaii, and Puerto Rico. The nominal scale of the data set is 1:100,000 with a maximal positional error of 80 meters.

Graph and download economic data for Leading Indicators OECD: Component Series: Business Tendencies Survey: Business Situation: Normalised for United States (USALOCOBSNOSTSAM) from Jan 1960 to Dec 2023 about leading indicator and business.

Source: U.S. Department of Transportation, Bureau of Transportation Statistics, based upon U.S. Department of Commerce, U.S. Census Bureau, Foreign Trade Division, USA Trade Online, "HS Port-level Data", available at https://usatrade.census.gov/ as of Sept 2024.

The Public Airports dataset includes all official and operational aerodromes (public only) 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.The Air Cargo dataset provides users with 2023 air cargo information about Chattanooga (Lovell Field) and Huntsville International airports. Data was obtained from the Bureau of Transportation Statistics. Data includesTotal air cargo in pounds for domestic and international and both departing and arriving from each airport on US carriers. Data taken from the Air Carrier Statistics (Form 41 Traffic)- U.S. Carriers database.

The National Bridge Inventory dataset is as of June 15, 2022 from the Federal Highway Administration (FHWA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The data describes more than 615,000 of the Nation's bridges located on public roads, including Interstate Highways, U.S. highways, State and county roads, as well as publicly-accessible bridges on Federal and Tribal lands. The inventory data present a complete picture of the location, description, classification, and general condition data for each bridge. The element data present a breakdown of the condition of each structural and bridge management element for each bridge on the National Highway System (NHS). The Recording and Coding Guide for the Structure Inventory and Appraisal of the Nation's Bridges contains a detailed description of each data element including coding instructions and attribute definitions. The Coding Guide is available at: https://doi.org/10.21949/1519105.

The Travel Monitoring Analysis System (TMAS) - Stations dataset was compiled on December 31, 2023 and was published on July 22, 2024 from the Federal Highway Administration (FHWA), and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). Geospatial station data from the FHWA TMAS database contains latitude and longitude data from over 7,000 permanent (temporal data representing each time period) traffic monitoring sites in all 50 states plus DC. Data from these stations are submitted to FHWA every month and is a result of a long standing partnership between FHWA and the state DOTs.