Bureau of Transportation Statistics unknown 20010000 vector digital data Bureau of Transportation Statistics This dataset contains the Bureau of Transportation Statistics commercial air segment network. This dataset contains the Bureau of Transportation Statistics commercial air segment network. The data provide users with service information about commercial air segments between commercial airports primarily for national planning applications. Acknowledgment of the Bureau of Transportation Statistics National Transportation Atlas Database would be appreciated in products derived from these data. unknown unknown publication date Complete As needed -88.458086 -78.228116 31.888101 24.958500 None transportation ISO 19115 Topic Categories transportation None Southeast United States Florida Southeast U.S None 1990s None THE DATA INCLUDED IN FGDL ARE 'AS IS' AND SHOULD NOT BE CONSTRUED AS LEGALLY BINDING. THE UNIVERSITY OF FLORIDA GEOPLAN CENTER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED AS A RESULT OF USING, MODIFYING, CONTRIBUTING OR DISTRIBUTING THE MATERIALS A note about data scale: Scale is an important factor in data usage. Certain scale datasets are not suitable for some project, analysis, or modeling purposes. Please be sure you are using the best available data. 1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries. 1:100000 scale datasets are recommended for projects that are at the multi-county or regional level. 1:125000 scale datasets are recommended for projects that are at the regional or state level or larger. Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analysis. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our webpage at: http://geoplan.ufl.edu/education.html Florida Geographic Data Library (FGDL) mailing

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Gainesville Florida 32611-5706 FGDL Mailing Lists: http://www.fgdl.org/fgdl-l.html FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html Technical Support: http://www.fgdl.org/fgdlfeed.html For FGDL Software: http://www.fgdl.org/software.html Web site: http://www.fgdl.org Version 6.2 (Build 9200) ; Esri ArcGIS 10.7.1.11595 Bureau of Transportation Statistics unknown Map GeoPlan relied on the integrity of the attribute information within the original data. Each air segment record is a straight line connecting pairs of points representing the locations of commercial U.S. airports. Each segment represents a direct, non-stop commercial air route between the two end points. The air segments are complete for large U.S. certified air carriers. Data on foreign flag air carriers is protected from public disclosure by international agreement and has been excluded from this database. Data on commuter airlines is not reported in the T-100 reports, and has also been excluded from this database. Although some records were modified, the data provider supplied no modification date(s), nor any change code in the REVISION field. The REVISION field was dropped from the coverage for since it has no records. This data is provided 'as is' and its horizontal positional accuracy has not been verified by GeoPlan This data is provided 'as is' and its vertical positional accuracy has not been verified by GeoPlan Bureau of Transportation Statistics unknown Map 100000 None unknown unknown ground condition BTS Spatial and Attribute Information The process step describes, in general, the process used in the production of data sets. The originating agencies created the original spatial coverage. Monthly reports were totaled to produce an annual summary of flights, seats, and enplaned passengers, by direction. Segment endpoints were matched against public use airports using landing facility's location identifier (LOCID) to obtain the end point locations. This process date was 19940000. GeoPlan, during the QA/QC process included the following aspects: (1) Reprojected data to FGDL Albers (2) Set Precision to DOUBLE (3) Set Tolerances to FGDL Standards. (4) DESCRIPT item based on FEATURID (5) Dropped items LREVISION, LMODDATE, STFIPS1 and STFIPS2 from BTSAW.AAT 20000101 Vector String 304 NAD 1983 HARN Florida GDL Albers 24.0 31.5 -84.0 24.0 400000.0 0.0 coordinate pair 0.0001 0.0001 meter D North American 1983 HARN GRS 1980 6378137.0 298.257222101 DATABASE FILE Database File None OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. LENGTH LINKID Unique sequential line identification number Unknown Unknown LRECTYPE One character which defines the type of file from a data set, which in this case is L. Unknown Unknown LVERSION County identification code. Unknown Unknown FEATURID File version number Unknown Unknown ANODE Node identification for the beginning node of the line Unknown Unknown BNODE Node identification for the ending node of the line Unknown Unknown DESCRIPT Based on FEATURID. Unknown Unknown AUTOID SHAPE Feature geometry. ESRI Coordinates defining the features. SHAPE.LEN Operator mailing

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Cambridge MA 02142 617 494 2588 FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time