AIRPORTS

This dataset contains informatin on airport facilities from the Federal
Aviation Administration (FAA), U.S. Department of Transportation,
Bureau of Transportation Statistics (BTS), and the National
Transportation Atlas Database (NTAD) 2003.

The Public Use Airports database is a geographic point database
of aircraft landing facilities in the United States and U.S. Territories.
Attribute data is provided on the physical and operational characteristics of the
landing facility, 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 (Effective 23 January 2003).

Data were obtained from the Federal Aviation Administration's (FAA)
National Airspace System Resource Aeronautical Data.  This product was
published by the Aeronautical Information Services (ATA-100) with an
Effective Date of 21 February 2002.

Horizontal positional accuracy is based on coordinate data provided in the
FAA National Airspace System Resource Aeronautical Dataset
(Effective 23 January 2003).  These coordinate data identify the
approximate location of the Airport Reference Point (ARP) as reported by
the landing facility on the NFDC (National Flight Data Center) 5010 form.
According to NFDC guidelines, the location of the ARP should be reported
to a horizontal accuracy of one arc second of latitude and longitude.
However, the accuracy of these reported coordinates are not verified by FAA.
The records were loaded into a GIS and checked for any unusual or obviously
erroneous locations.

The creation of this geospatial data layer was completed by BTS in March
2003. This Shapefile was derived from textual data on the FAA National
Airspace System Resource Aeronautical Data CDROM, effective 23 January 2003
(FAA-NASRAD-23JAN2003).  These textual data were processed using AML scripts
to create a coverage with additional dbf's.  This coverage and associated
dbf's were appended together using the SITE_NO as the connecting identification
number.

Horizontal positional accuracy is based on coordinate data provided in the FAA National Airspace System Resource Aeronautical Dataset (Effective 23 January 2003).  These coordinate data identify the approximate location of the Airport Reference Point (ARP) as reported by the landing facility on the NFDC (National Flight Data Center) 5010 form.  According to NFDC guidelines, the location of the ARP should be reported to a horizontal accuracy of one arc second of latitude and longitude.  However, the accuracy of these reported coordinates are not verified by FAA.  The records were loaded into a GIS and checked for any unusual or obviously erroneous locations.

This data is provided 'as is' and its vertical positional accuracy has not been verified by GeoPlan

Spatial Attribute Information

The creation of this geospatial data layer was completed by BTS 
in March 2003.  This Shapefile was derived from textual data on 
the FAA National Airspace System Resource Aeronautical Data 
CDROM, effective 23 January 2003 (FAA-NASRAD-23JAN2003).  
These textual data were process using AML scripts to create a 
coverage with additional dbf's.  This coverage and associated dbf's 
were appended together using the SITE_NO as the unique identifier.

Airport Facility locations were obtained from the CD-ROM
National Transportation Atlas Database (NTAD) 2003
(A Collection of Spatial Data for Use in GIS-based Applications)
BTS-03-04. GeoPlan extracted this data in shapefile
format and removed facilities not located in Florida.
The shapefile was reprojected from WGS_1984 Decimal Degrees to the FGDL
Albers HPGN map projection. (See "Map Projection Parameters" below).

-Process Steps for NTAD 2003 Airport Facility Locations:
-Airport Facility locations were obtained from the CD-ROM
 National Transportation Atlas Database (NTAD) 2003
 (A Collection of Spatial Data for Use in GIS-based Applications)
 BTS-03-04.
-GeoPlan extracted this data in shapefile format and removed facilities
 not located in Florida.
-The shapefile was reprojected from WGS_1984 Decimal Degrees to the
 FGDL Albers HPGN map projection. (See "Map Projection Parameters" below).

Internal feature number.

ESRI

Feature geometry.

ESRI

A unique identifying number followed by an asterisk and the 'landing facility type' code.  The SITE_NO forms the key to the airport records in the NFDC (5010) database.  Example: 04508.*A

FAA

Facility Type

FAA

A unique 3-4 character identifier assigned to the landing facility (i.e. airport).

FAA

Information Effective Data (MM/DD/YYYY).  This date coincides with the 56-day charting and publication cycle date.

FAA

FAA Region where the facility is located

FAA

FAA District or Field Office Code

FAA

A two letter postal abbreviation for the state, or US territory, where the airport's associated city is located.  This is not necessarily the state where the landing facility is physically located.

FAA

State FIPS code

BTS

Airport's associated state or territory name.

FAA

Name of the county or parish associated with the airport.

FAA

Name of the city associated with the airport.

FAA

Official Airport Name

FAA

Type of Airport Facility Owner

FAA

Facility Use -- Public or Private

FAA

The latitude of the point expressed as a signed real number.  This value is in decimal degrees with negative values indicating West longitude and positive values indicating East longitude.

FAA

The longitude of the point expressed as a signed real number.  This value is in decimal degrees with negative values indicating South latitude and positive values indicating North latitude.

FAA

Determination method for airport reference point.

FAA

Elevation in feet at the highest point on the centerline of the useable landing surface.  Measured to the nearest foot with respect to mean sea level (MSL).

FAA

Aeronautical chart on which the airport facility appears.

FAA

Distance from the central business district of the associated city to the airport in nautical miles (1 nautical mile = 6,080 feet).  Measured to the nearest nautical mile

FAA

Direction of airport from the central business district of the associated city.  Measured to the nearest 1/8 compass point

FAA

Identifies the month and year that the facility was added to the NFDC airport database - only available for facilities opened since 1981 (MM/YYYY).

FAA

Airport Certification Type and Date - The format is a two-character code followed by a month/year (MM/YYYY) of certification.

FAA

NASP/ Federal Agreement Code - a combination of 1 to 7 codes that indicate the type of federal agreements existing at the airport.

FAA

Customs international airport - Whether the landing facility has been designated by the U.S. Treasury as an international airport of entry for customs.

FAA

Customs Landing Rights Airport - Whether the landing facility has been designated by the U.S. Treasury as a customs landing rights airport (some landing facilities may have these rights for cargo only).

FAA

Joint Use - Whether the landing facility has a military/civil joint use agreement that allows civil operations at a military airport or military operations at a civil airport.

Military Landing Rights - Whether the airport has entered into an agreement that grants landing rights to the military.

FAA

National Emergency Status - Status of an airport that is available for use during a national emergency.  These are civil airports that were formerly  military airfields but the military services have a continuing interest in their use during national emergencies.  Data values in this field are one, or a series, of alphanumeric codes indicating national emergency status, with each code in a series separated by a '/'.

FAA

Military Emergency Interest - Military department(s) that maintains national emergency use interest in this civil facility.  Data values in this field are one, two, or three alphanumeric codes indicating military emergency use interest, with each code in a series separated by a '/'.

FAA

Airport Control Tower located on the airport.

FAA

Based Single Engine General Aviation Aircraft

FAA

Based Multi-engine general aviation aircraft

FAA

Based Jet engine general aviation aircraft

FAA

Based Helicopters - General Aviation

FAA

Base Operational Gliders - general aviation

FAA

Based Military Aircraft - including helicopters

FAA

Based Ultralight aircraft - general aviation

FAA

Commercial Services - scheduled operations by CAB certified carriers or intrastate carriers and any scheduled commuter/cargo carriers (Annual Operations).

FAA

Air Taxi operators carrying passengers, mail, or mail for revenue (Annual Operations).

FAA

General Aviation, Local Operations - Those operating in the local traffic pattern or within a 20 mile radius (Annual Operations).

FAA

General Aviation - Itinerant Operations.  Those general aviation operations (excluding commuter or air taxi) not qualifying as local (Annual Operations).

FAA

Military Aircraft Operations (Annual Operations).

FAA

Total domestic enplanements (inbound plus outbound) - this field only valid for some airports.

FAA

The VERSION is a 2-digit number that will be incremented for all records in the database whenever a new release is distributed.

BTS

REVISION is a 2-digit number that will be incremented individually for each record whenever a change is made to one of its fields.

BTS

Field added by FGDL based on FULLNAME.

GeoPlan