Heliports (HeliportPt)
Metadata also available as
Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator:
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US Department of Transportation - Bureau of Transportation Statistics
- Publication_Date: 20051110
- Title: Heliports (HeliportPt)
- Geospatial_Data_Presentation_Form: vector digital data
- Publication_Information:
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- Publisher: DC GIS
- Online_Linkage:
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<http://dcatlas.dcgis.dc.gov/catalog/download.asp?downloadName=HeliportPt&downloadTYPE=ESRI>
- Online_Linkage:
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<http://dcatlas.dcgis.dc.gov/catalog/download.asp?downloadName=HeliportPt&downloadTYPE=KMZ>
- Larger_Work_Citation:
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- Citation_Information:
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- Originator: DC GIS
- Originator: Bureau of Transportation Statisitcs
- Publication_Date: 2001
- Title: National Transportation Atlas Databases
- Geospatial_Data_Presentation_Form: vector digital data
- Description:
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- Abstract:
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Heliport locations. The dataset contains locations and attributes of DC Heliports, created as part of the DC Geographic Information System (DC GIS) for the D.C. Office of the Chief Technology Officer (OCTO) and participating D.C. government agencies.
The National Transportation Atlas Database (NTAD) provided by the Bureau of Transportation Statistics, US Department of Transportation identified DC Heliport and Airport locations.
All DC GIS data is stored and exported in Maryland State Plane coordinates NAD 83 meters.
METADATA CONTENT IS IN PROCESS OF VALIDATION AND SUBJECT TO CHANGE.
- Purpose:
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This data is used for the planning and management of Washington, D.C. by local government agencies.
- Supplemental_Information:
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The feature class is a geographic point database of aircraft landing facilities in the District of Columbia and surrouding suburbs. 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.
- Time_Period_of_Content:
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- Time_Period_Information:
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- Single_Date/Time:
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- Calendar_Date: 20051110
- Currentness_Reference: ground condition
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: As needed
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -77.086734
- East_Bounding_Coordinate: -76.973594
- North_Bounding_Coordinate: 39.005526
- South_Bounding_Coordinate: 38.845091
- Data_Set_G-Polygon:
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- Data_Set_G-Polygon_Outer_G-Ring:
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- G-Ring_Point:
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: none
- Theme_Keyword: No Fly Zone
- Theme_Keyword: Homeland Security
- Theme_Keyword: Flight
- Theme_Keyword: Heliports
- Theme_Keyword: transportation
- Theme_Keyword: National Security
- Theme_Keyword: aviation
- Theme_Keyword: Air Space
- Theme_Keyword: Airport
- Theme_Keyword: society
- Theme_Keyword: Planimetrics
- Place:
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- Place_Keyword: Washington, D.C.
- Place_Keyword: District of Columbia
- Place_Keyword: DC
- Place_Keyword: DC GIS
- Place_Keyword: DCGIS
- Use_Constraints:
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For data terms and conditions, go to <http://dc.gov/page/terms-and-conditions-use-district-data>
- Point_of_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: D.C. Office of the Chief Technology Officer
- Contact_Person: GIS Data Coordinator
- Contact_Address:
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- Address_Type: mailing and physical address
- Address: 441 4th St NW, Suite 930 South
- City: Washington
- State_or_Province: DC
- Postal_Code: 20001
- Country: USA
- Contact_Facsimile_Telephone: (202) 727-5660
- Contact_Electronic_Mail_Address: [email protected]
- Hours_of_Service: 8:30 am - 5 pm
- Data_Set_Credit:
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US Department of Transportation - Bureau of Transportation Statistics (BTS)
- Native_Data_Set_Environment:
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Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.780
- Data_Quality_Information:
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- Attribute_Accuracy:
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- Attribute_Accuracy_Report:
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Data believed to be complete and accurate, subject to change.
Validated by source and/or responsible agency.
Airport attributes were obtained from the Federal Aviation Administration (FAA) National Flight Data Center Airport Master Record (NFDC 5010) database and the Office of Airline Information (OAI).
Some airport features in this version are not assigned Site Numbers (SITE_NO). These are airports where the location identifier (LOCID) did not match any current record in the NFDC data. These features have no corresponding records in any attribute file. They were not deleted from this version in anticipation of performing a more thorough review.
- Logical_Consistency_Report:
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All point records are represented by a single coordinate pair and a unique feature identifier -- the landing facility's location
identifier (LOCID) and Site Number (SITE_NO) assigned by the FAA.
- Completeness_Report:
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Data believed to be complete and accurate, subject to change. Validated by source and/or responsible agency.
Landing facilities in this database consist of those identified in the NFDC 5010 database to be publicly owned, privately owned but open to the
public, or owned by the U.S. military. The following landing facilities have been excluded: private landing facilities not open to the public, glider ports, ultra
light landing facilities, and landing facilities that do not have a current LOCID values assigned to them.
- Positional_Accuracy:
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- Horizontal_Positional_Accuracy:
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- Horizontal_Positional_Accuracy_Report:
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According to NFDC guidelines, the original ARP data has a horizontal accuracy of one arc second of latitude and longitude. OCTO GIS staff moved the points to identifer heliport locations using the 2003 orthophoto.
- Vertical_Positional_Accuracy:
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- Vertical_Positional_Accuracy_Report: N/A
- Lineage:
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- Source_Information:
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- Source_Citation:
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- Citation_Information:
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- Originator: Federal Aviation Administration
- Publication_Date: September 1995
- Title:
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National Flight Data Center (NFDC) Airport Master Record Database
- Other_Citation_Details: <source notes>
- Online_Linkage: <http://www.faa.gov/>
- Type_of_Source_Media: magnetic tape
- Source_Time_Period_of_Content:
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- Time_Period_Information:
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- Single_Date/Time:
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- Calendar_Date: unknown
- Time_of_Day: unknown
- Source_Currentness_Reference: publication date
- Source_Citation_Abbreviation: NFDC 5010
- Source_Contribution:
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Facility location, name and other identification, physical description, ownership, FAA certification, military and customs landing rights, number of runways and helipads.
- Process_Step:
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- Process_Description:
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The following steps were done to create the heliport layer:
1. Downloaded the airports shapefile from the National Transportation Atlas Database provided by the the Bureau of Transportation Statistics, US DOT.
2. Clipped the shapefile to the NAVTEQ county boundaries for extent consistency with other regional layers in DC GIS.
3. Reprojected the shapefile to Maryland State Plane, NAD 1983 meters.
4. Double-checked the features for positional accuracy in DC. Where applicable, manually moved the point directly above a helipad landing site visible in the 2003 DC Orthophotography.
5. Exported all District of Columbia features into a separate DC only shapefile.
- Source_Used_Citation_Abbreviation: C:\OCTOGIS\Data\Metadata\TemplateDCStat
- Process_Date: 10/24/2005
- Process_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: Office of the Chief Technology Officer
- Contact_Person: GIS Data Coordinator
- Contact_Address:
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- Address_Type: mailing and physical address
- Address: 200 I Street SE, 5th Floor
- City: Washington
- State_or_Province: DC
- Postal_Code: 20001
- Country: USA
- Contact_Facsimile_Telephone: 202-727-5660
- Contact_Electronic_Mail_Address: [email protected]
- Hours_of_Service: 8:30am - 5:30pm
- Process_Step:
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- Process_Description: Metadata imported.
- Source_Used_Citation_Abbreviation: C:\ADS_WorkSpace\SaraTitleIII\TemplateDCGIS.shp.xml
- Process_Date: 10/25/2005
- Process_Step:
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- Process_Description: Metadata imported.
- Source_Used_Citation_Abbreviation: E:\DCGISDATA_WORKSPACE\OCTO\NTAD_DC_AirPt.shp.xml
- Process_Step:
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- Process_Description: Dataset copied.
- Source_Used_Citation_Abbreviation: E:\DCGISDATA_WORKSPACE\OCTO\HeliportPt
- Process_Step:
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- Process_Description: Metadata imported.
- Source_Used_Citation_Abbreviation: E:\DCGISDATA_FINAL\Miscellaneous\HeliportPt.shp.xml
- Process_Step:
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- Process_Description: Dataset copied.
- Source_Used_Citation_Abbreviation: Server=10.2.11.14; Service=5151; User=sde; Version=SDE.DEFAULT
- Spatial_Data_Organization_Information:
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- Direct_Spatial_Reference_Method: Vector
- Point_and_Vector_Object_Information:
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- SDTS_Terms_Description:
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- SDTS_Point_and_Vector_Object_Type: Entity point
- Point_and_Vector_Object_Count: 19
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Planar:
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- Grid_Coordinate_System:
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- Grid_Coordinate_System_Name: State Plane Coordinate System 1983
- State_Plane_Coordinate_System:
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- SPCS_Zone_Identifier: 1900
- Lambert_Conformal_Conic:
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- Standard_Parallel: 38.300000
- Standard_Parallel: 39.450000
- Longitude_of_Central_Meridian: -77.000000
- Latitude_of_Projection_Origin: 37.666667
- False_Easting: 400000.000000
- False_Northing: 0.000000
- Planar_Coordinate_Information:
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- Planar_Coordinate_Encoding_Method: coordinate pair
- Coordinate_Representation:
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- Abscissa_Resolution: 0.001000
- Ordinate_Resolution: 0.001000
- Planar_Distance_Units: meters
- Geodetic_Model:
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- Horizontal_Datum_Name: North American Datum of 1983
- Ellipsoid_Name: Geodetic Reference System 80
- Semi-major_Axis: 6378137.000000
- Denominator_of_Flattening_Ratio: 298.257222
- Vertical_Coordinate_System_Definition:
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- Altitude_System_Definition:
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- Altitude_Resolution: 1.000000
- Altitude_Encoding_Method:
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Explicit elevation coordinate included with horizontal coordinates
- Entity_and_Attribute_Information:
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- Detailed_Description:
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- Entity_Type:
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- Entity_Type_Label: DCGIS.HeliportPt
- Entity_Type_Definition:
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National Transportation Atlas Database airport/heliport locations within DC only
- Entity_Type_Definition_Source: OCTO
- Attribute:
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- Attribute_Label: TELEPHONE
- Attribute_Definition: Telephone number
- Attribute_Definition_Source: OCTO & FAA
- Attribute:
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- Attribute_Label: Shape
- Attribute_Definition: Feature geometry
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Coordinates defining the features.
- Attribute:
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- Attribute_Label: GIS_ID
- Attribute_Definition: OCTO GIS sequential identifier
- Attribute_Definition_Source: OCTO
- Attribute:
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- Attribute_Label: NAME
- Attribute_Definition: Facility Name
- Attribute_Definition_Source: OCTO & FAA
- Attribute:
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- Attribute_Label: OWNERSHIP
- Attribute_Definition: Owner
- Attribute_Definition_Source: OCTO & FAA
- Attribute:
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- Attribute_Label: UNICOM
- Attribute_Definition: Unicom
- Attribute:
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- Attribute_Label: OBJECTID
- Attribute_Definition: Internal feature number.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
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Sequential unique whole numbers that are automatically generated.
- Attribute:
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- Attribute_Label: ADDRESS
- Attribute_Definition: Facility Location
- Attribute_Definition_Source: OCTO
- Attribute:
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- Attribute_Label: SHAPE
- Attribute_Definition: Feature geometry.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Coordinates defining the features.
- Overview_Description:
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- Entity_and_Attribute_Overview:
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A data dictionary and file formats for all attributes is provided in this document. Entity_and_Attribute_Detail_Citation:
- Distribution_Information:
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- Distributor:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: D.C. Office of the Chief Technology Officer
- Contact_Person: GIS Data Coordinator
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 200 I Street SE, 5th Floor
- City: Washington
- State_or_Province: DC
- Postal_Code: 20001
- Country: USA
- Contact_Facsimile_Telephone: (202) 727-5660
- Contact_Electronic_Mail_Address: [email protected]
- Hours_of_Service: 8:30 am - 5 pm
- Resource_Description: Downloadable Data
- Distribution_Liability:
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For data terms and conditions, go to <http://dc.gov/page/terms-and-conditions-use-district-data>
- Standard_Order_Process:
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- Digital_Form:
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- Digital_Transfer_Information:
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- Transfer_Size: 0.001
- Digital_Transfer_Option:
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- Online_Option:
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- Computer_Contact_Information:
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- Network_Address:
- Ordering_Instructions: All data is available at <http://opendata.dc.gov>
- Metadata_Reference_Information:
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- Metadata_Date: 20080626
- Metadata_Review_Date: 10/25/2005
- Metadata_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: D.C. Office of the Chief Technology Officer
- Contact_Person: GIS Data Coordinator
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 200 I Street SE, 5th Floor
- City: Washington
- State_or_Province: DC
- Postal_Code: 20001
- Country: USA
- Contact_Facsimile_Telephone: (202) 727-5660
- Contact_Electronic_Mail_Address: [email protected]
- Hours_of_Service: 8:30 am - 5 pm
- Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
- Metadata_Time_Convention: local time
- Metadata_Extensions:
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- Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
- Profile_Name: ESRI Metadata Profile
Generated by mp version 2.9.12 on Thu Jun 25 15:31:43 2015