README for “Travel Monitoring Analysis System (TMAS) 2013-Present” dataset. U.S. Department of Transportation (DOT), Federal Highway Administration (FHWA); U.S. Department of Transportation (USDOT), Bureau of Transportation Statistics (BTS) [distributor] 2025-06-30 ---------------------------------------------------------------- LINKS TO DATASET ---------------------------------------------------------------- A. Dataset archive link: https://doi.org/10.21949/1520848 B. NTAD catalog dataset link (Current Year): https://doi.org/10.21949/w963-jk97 C. Dataset Documentation Link: https://doi.org/10.21949/1519109 ---------------------------------------------------------------- SUMMARY OF DATASET ---------------------------------------------------------------- The Travel Monitoring Analysis System (TMAS) 2013-Present dataset is from the Federal Highway Administration (FHWA), and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’s (BTS's) National Transportation Atlas Database (NTAD). The TMAS Continuous Vehicle Classification (CVC) data represents both the FHWA 13 vehicle types and length-based class as defined by the 2001 Traffic Monitoring Guide (TMG). For more information consult https://doi.org/10.21949/1519109 ---------------------------------------------------------------- TABLE OF CONTENTS ---------------------------------------------------------------- A. General Information B. Sharing/Access & Policies Information C. Data and Related File Overview D. Methodological Information E. Data-Specific Information for: Travel Monitoring Analysis System (TMAS) 2013-Present [datasets] F. Update Log ---------------------------------------------------------------- A. GENERAL INFORMATION ---------------------------------------------------------------- 0. Title of Dataset: Travel Monitoring Analysis System (TMAS) 2013-Present [dataset] 1. Description of Dataset: The Travel Monitoring Analysis System (TMAS) 2013-Present dataset is from the Federal Highway Administration (FHWA), and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’ (BTS's) National Transportation Atlas Database (NTAD). The TMAS Continuous Vehicle Classification (CVC) data represents both the FHWA 13 vehicle types and length-based class as defined by the 2001 Traffic Monitoring Guide (TMG). For more information consult https://doi.org/10.21949/1519109 2. Dataset archive link: https://doi.org/10.21949/1520848 3. Authorship Information: Principal Data Creator or Data Manager Contact Information Institution: U.S. Department of Transportation (DOT), Federal Highway Administration (FHWA) Address: 1200 New Jersey Ave SE, Washington D.C. 20590 Contact: ExecSecretariat.FHWA@dot.gov Data Distributor Contact Information Name: National Transportation Atlas Database (NTAD) Institution: U.S. Department of Transportation (USDOT), Bureau of Transportation Statistics (BTS), Office of Spatial Analysis and Visualization (OSAV) Address: 1200 New Jersey Ave. SE, Washington D.C. 20590 Email: ntad@dot.gov 4. Date of data collection and update interval: This dataset is updated annually. This dataset is updated annually. Dataset Manager is contacted to verify changes to data resulting in NTAD update. The metadata is updated in the same manner. For the most recent data, please visit the NTAD catalog at https://doi.org/10.21949/w963-jk97 5. Geographic location of data collection: United States of America 6. Information about funding sources that supported the collection of the data: Federal Highway Administration (FHWA), U.S. Department of Transportation (DOT) ---------------------------------------------------------------- B. SHARING/ACCESS & POLICIES INFORMATION ---------------------------------------------------------------- 0. Recommended citation for the data: U.S. Department of Transportation (DOT), Federal Highway Administration (FHWA), U.S. Department of Transportation, Bureau of Transportation Statistics (BTS) [distributor]. Travel Monitoring Analysis System (TMAS) 2013-Present [datasets]. https://doi.org/10.21949/1520848 1. Licenses/restrictions placed on the data: These data are in the Public Domain. 2. Was data derived from another source?: Yes. The data is submitted to FHWA from state DOT to Federal Highway Administration. 3. This document was created to meet the requirements enumerated in the U.S. Department of Transportation's 'Plan to Increase Public Access to the Results of Federally-Funded Scientific Research' Version 1.1 << https://doi.org/10.21949/1520559 >> and guidelines suggested by the DOT Public Access website << https://doi.org/10.21949/1503647 >>, in effect and current as of December 03, 2020. ---------------------------------------------------------------- C. DATA & RELATED FILE OVERVIEW ---------------------------------------------------------------- 1. File List for the Travel Monitoring Analysis System (TMAS) 2013-Present dataset A. Filename: bts_NTAD_TMAS_DMP_20250630.pdf Short description: A PDF file containing the Data Management Plan that was created for current and future management of the data and associated files. B. Filename: bts_NTAD_TMAS_README_20250702.txt Short description: The README.txt file that includes human-readable information about the data, variable definitions, contact information, and other contextual information. The file you are reading now. C. File List for the Travel_Monitoring_Analysis_System_TMAS_NTAD2013_NTAD2022.zip collection. Ca. File List for NTADXXXX_SHP_Final_TMAS_XXXX.zip collection Ca 1. Filename: tmas*.shp Short description: A shapefile containing the geospatial data for Travel Monitoring Analysis System (TMAS) 2013-Present dataset. This includes associated files with extensions .prj, .dbf, .sbn, .sbx, .shx. Shapefile (SHP) folders are classified by NTAD publication year and data vintage date respectively. Data are classified by data vintage date. Ca 2. Filename: tmas.txt and tmas*.shp.xml Short description: Text files containing key metadata and documentation information such as methodology, procedures, data dictionary, etc. Files are classified by data vintage date. Cb. Filename: NTADXXXX_GDB_Final_TMAS_XXXX_XX_XX.gdb.zip (Folder) Short description: Compressed file folders containing the geospatial data for Travel Monitoring Analysis System (TMAS) 2013-Present dataset. File folders are classified by NTAD publication year and data vintage year or date respectively. Geodatabase (GDB) folders contain all the necessary components to view and otherwise interact with their data. D. File List for NTADXXXX_GDB_Final_TMAS_CYXXXX.zip collection Da. Filename: NTADXXXX_GDB_Final_TMASXXXX_CYXXXX.gdb.zip (Folder) Short description: Compressed file folders containing the geospatial data for Travel Monitoring Analysis System (TMAS) 2013-Present dataset. File folders are classified by NTAD publication year and data vintage year or date respectively. Geodatabase (GDB) folders contain all the necessary components to view and otherwise interact with their data. Db. Filename: TMAS_Class.xml, TMAS_Stations.xml, TMAS_Stations_Table.xml, and TMAS_Volume.xml, or TMAS_Class.xml, TMAS_Stations, TMAS_Stations_Table.xml, and TMAS_Volume.xml Short description: Extensible Markup Language (XML) files containing key metadata and documentation information such as methodology, procedures, etc. Dc. Filename: TMAS.xlsx, TMAS_Class.xlsx, and TMAS_Vol.xlsx, or TMAS_Travel_Monitoring_Analysis_System_Class.xlsx, TMAS_Travel_Monitoring_Analysis_System_Stations.xlsx, TMAS_Travel_Monitoring_Analysis_System_Stations_Table.xlsx, and TMAS_Travel_Monitoring_Analysis_System_Volume.xlsx Short description: Excel spreadsheet containing the dataset's data dictionary including attribute field names and definitions for fields and applicable values. ---------------------------------------------------------------- D. METHODOLOGICAL INFORMATION ---------------------------------------------------------------- 1. Description of methods used for collection/generation of data: The Travel Monitoring Analysis System (TMAS) Classification Dataset is created through a collaboration of state agencies. States upload traffic data to the FHWA through TMAS. 2. Instrument- or software-specific information needed to interpret the data: The shapefile data can be opened with Esri ArcGIS and any GIS software package. File geodatabase data can only be opened with Esri ArcGIS. The documentation files can be opened with any basic text editor. ---------------------------------------------------------------- E. DATA-SPECIFIC INFORMATION ---------------------------------------------------------------- 1. Travel Monitoring Analysis System (TMAS) data table Due to the size of the data, it is not described in detail here. Review the data dictionary present in the data folders for information on the data table. A. Number of variables (columns): The data dictionary found in TTMAS_Travel_Monitoring_Analysis_System_Class.xlsx, TMAS_Travel_Monitoring_Analysis_System_Stations.xlsx, TMAS_Travel_Monitoring_Analysis_System_Stations_Table.xlsx, and TMAS_Travel_Monitoring_Analysis_System_Volume.xlsx provides definitions for the variables B. Data Dictionary/Variable List: Because of the large number of variables, please refer to the Data Dictionary found within the file TMAS_Travel_Monitoring_Analysis_System_Class.xlsx, TMAS_Travel_Monitoring_Analysis_System_Stations.xlsx, TMAS_Travel_Monitoring_Analysis_System_Stations_Table.xlsx, and TMAS_Travel_Monitoring_Analysis_System_Volume.xlsx for names, definitions, and formats of variables. C. Missing data codes: None ---------------------------------------------------------------- F. UPDATE LOG ---------------------------------------------------------------- This bts_TMAS_20250610_README.txt file was originally created on 2021-04-07 by Dominic Menegus, Geographer, dominic.menegus@dot.gov [Note changes or update to the readme.txt file, e.g.:] 2021-04-07: Initial DMP written 2025-06-10: Document revised, including dataset description. 2025-06-30: Added dataset documentation link. 2025-07-02: Updated catalog link.