README for “Commercial Air Segment Network 1996-1997” dataset. U.S. Department of Transportation (DOT), Federal Aviation Administration (FAA); U.S. Department of Transportation (USDOT), Bureau of Transportation Statistics (BTS) [distributor] 2025-05-29 ---------------------------------------------------------------- LINKS TO DATASET ---------------------------------------------------------------- A. Dataset archive link: https://doi.org/10.21949/1520838 ---------------------------------------------------------------- SUMMARY OF DATASET ---------------------------------------------------------------- The Commercial Air Segment Network 1996-1997 dataset is from the Federal Aviation Administration (FAA), and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’s (BTS's) National Transportation Atlas Database (NTAD). The Commercial Air Segment Network is a comprehensive point-to-point network database of the nation's commercial air segment network. The data set covers point-to-point segment information between commercial airports within the 48 contiguous States plus Alaska, Hawaii, and US territories. ---------------------------------------------------------------- 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: Commercial Air Segment Network 1996-1997 [datasets] F. Update Log ---------------------------------------------------------------- A. GENERAL INFORMATION ---------------------------------------------------------------- 0. Title of Dataset: Commercial Air Segment Network 1996-1997 [dataset] 1. Description of Dataset: The Commercial Air Segment Network 1996-1997 dataset is from the Federal Aviation Administration (FAA), and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’ (BTS's) National Transportation Atlas Database (NTAD). The Commercial Air Segment Network is a comprehensive point-to-point network database of the nation's commercial air segment network. The data set covers point-to-point segment information between commercial airports within the 48 contiguous States plus Alaska, Hawaii, and US territories. 2. Dataset archive link: https://doi.org/10.21949/1520838 3. Authorship Information: Principal Data Creator or Data Manager Contact Information Institution: U.S. Department of Transportation (DOT), Federal Aviation Administration (FAA) Address: 800 Independence Avenue, SW, Washington D.C. 20032 Contact: 301-427-4891 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 not receiving updates. 5. Geographic location of data collection: United States of America 6. Information about funding sources that supported the collection of the data: Federal Aviation Administration (FAA), U.S. Department of Transportation (DOT) ---------------------------------------------------------------- B. SHARING/ACCESS & POLICIES INFORMATION ---------------------------------------------------------------- 0. Recommended citation for the data: U.S. Department of Transportation (DOT), Federal Aviation Administration (FAA), U.S. Department of Transportation, Bureau of Transportation Statistics (BTS) [distributor]. Commercial Air Segment Network 1996-1997 [datasets]. https://doi.org/10.21949/1520838 1. Licenses/restrictions placed on the data: These data are in the Public Domain. 2. Was data derived from another source?: No. 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 Commercial Air Segment Network 1996-1997 dataset A. Filename: Commercial_Air_Segment_Network_NTAD1996_NTAD1997.zip Short description: Compressed file folders containing the geospatial data for Commercial Air Segment Network 1996-1997 dataset. File folders are classified by NTAD publication year and data vintage year or date respectively. B. Filename: bts_NTAD_Airways_DMP_20250529.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. C. Filename: bts_NTAD_Airways_README_20250529.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. 2. File List for the Commercial_Air_Segment_Network_NTAD1996_NTAD1997.zip collection. A. Filename: NTADXXXX_SHP_Final_Commercial_Air_Segment_Network.zip Short description: Compressed file folders containing the geospatial data for Commercial Air Segment Network 1996-1997 dataset. File folders are classified by NTAD publication year and data vintage year respectively. 3. File List for the NTADXXXX_SHP_Final_Commercial_Air_Segment_Network.zip collection. A. Filename: airway.shp Short description: A shapefile containing the geospatial data for Commercial Air Segment Network 1996-1997 dataset. This includes associated files with extensions .prj, .dbf, .sbn, .sbx, .shx. B. Filename: AIRWAY.MET Short description: Text files containing key metadata and documentation information such as methodology, procedures, data dictionary, etc. ---------------------------------------------------------------- D. METHODOLOGICAL INFORMATION ---------------------------------------------------------------- 1. Description of methods used for collection/generation of data: N/A 2. Instrument- or software-specific information needed to interpret the data: The data and documentation files can be opened with Esri ArcMap and any GIS software package. ---------------------------------------------------------------- E. DATA-SPECIFIC INFORMATION ---------------------------------------------------------------- 1. Commercial Air Segment Network data table This dataset is not receiving updates. A. Number of variables (columns): The data dictionary found in (PDF documentation) 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 Airways.txt for names, definitions, and formats of variables. C. Missing data codes: None ---------------------------------------------------------------- F. UPDATE LOG ---------------------------------------------------------------- This bts_Airways_20250529_README.txt file was originally created on 2021-09-07 by Dominic Menegus, Geographer, dominic.menegus@dot.gov [Note changes or update to the readme.txt file, e.g.:] 2021-09-07: Original file created 2023-09-14: Review and updates as needed. 2023-10-16: Updating end year 2025-04-16: Updated dataset name. 2025-05-29: Revised document, including data descriptions and file organization.