Heliports (HeliportPt)

Metadata also available as

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
US Department of Transportation - Bureau of Transportation Statistics
Publication_Date: 20051110
Title: Heliports (HeliportPt)
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publisher: DC GIS
Online_Linkage:
<http://dcatlas.dcgis.dc.gov/catalog/download.asp?downloadName=HeliportPt&downloadTYPE=ESRI>
Online_Linkage:
<http://dcatlas.dcgis.dc.gov/catalog/download.asp?downloadName=HeliportPt&downloadTYPE=KMZ>
Larger_Work_Citation:
Citation_Information:
Originator: DC GIS
Originator: Bureau of Transportation Statisitcs
Publication_Date: 2001
Title: National Transportation Atlas Databases
Geospatial_Data_Presentation_Form: vector digital data
Description:
Abstract:
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:
This data is used for the planning and management of Washington, D.C. by local government agencies.
Supplemental_Information:
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:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20051110
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -77.086734
East_Bounding_Coordinate: -76.973594
North_Bounding_Coordinate: 39.005526
South_Bounding_Coordinate: 38.845091
Data_Set_G-Polygon:
Data_Set_G-Polygon_Outer_G-Ring:
G-Ring_Point:
Keywords:
Theme:
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:
Place_Keyword: Washington, D.C.
Place_Keyword: District of Columbia
Place_Keyword: DC
Place_Keyword: DC GIS
Place_Keyword: DCGIS
Use_Constraints:
For data terms and conditions, go to <http://dc.gov/page/terms-and-conditions-use-district-data>
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: D.C. Office of the Chief Technology Officer
Contact_Person: GIS Data Coordinator
Contact_Address:
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:
US Department of Transportation - Bureau of Transportation Statistics (BTS)
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.780

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
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:
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:
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:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
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:
Vertical_Positional_Accuracy_Report: N/A
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Federal Aviation Administration
Publication_Date: September 1995
Title:
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:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Time_of_Day: unknown
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: NFDC 5010
Source_Contribution:
Facility location, name and other identification, physical description, ownership, FAA certification, military and customs landing rights, number of runways and helipads.
Process_Step:
Process_Description:
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:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: 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: 8:30am - 5:30pm
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: C:\ADS_WorkSpace\SaraTitleIII\TemplateDCGIS.shp.xml
Process_Date: 10/25/2005
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: E:\DCGISDATA_WORKSPACE\OCTO\NTAD_DC_AirPt.shp.xml
Process_Step:
Process_Description: Dataset copied.
Source_Used_Citation_Abbreviation: E:\DCGISDATA_WORKSPACE\OCTO\HeliportPt
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: E:\DCGISDATA_FINAL\Miscellaneous\HeliportPt.shp.xml
Process_Step:
Process_Description: Dataset copied.
Source_Used_Citation_Abbreviation: Server=10.2.11.14; Service=5151; User=sde; Version=SDE.DEFAULT

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 19

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: State Plane Coordinate System 1983
State_Plane_Coordinate_System:
SPCS_Zone_Identifier: 1900
Lambert_Conformal_Conic:
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:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.001000
Ordinate_Resolution: 0.001000
Planar_Distance_Units: meters
Geodetic_Model:
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:
Altitude_System_Definition:
Altitude_Resolution: 1.000000
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: DCGIS.HeliportPt
Entity_Type_Definition:
National Transportation Atlas Database airport/heliport locations within DC only
Entity_Type_Definition_Source: OCTO
Attribute:
Attribute_Label: TELEPHONE
Attribute_Definition: Telephone number
Attribute_Definition_Source: OCTO & FAA
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: GIS_ID
Attribute_Definition: OCTO GIS sequential identifier
Attribute_Definition_Source: OCTO
Attribute:
Attribute_Label: NAME
Attribute_Definition: Facility Name
Attribute_Definition_Source: OCTO & FAA
Attribute:
Attribute_Label: OWNERSHIP
Attribute_Definition: Owner
Attribute_Definition_Source: OCTO & FAA
Attribute:
Attribute_Label: UNICOM
Attribute_Definition: Unicom
Attribute:
Attribute_Label: OBJECTID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: ADDRESS
Attribute_Definition: Facility Location
Attribute_Definition_Source: OCTO
Attribute:
Attribute_Label: SHAPE
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Overview_Description:
Entity_and_Attribute_Overview:
A data dictionary and file formats for all attributes is provided in this document. Entity_and_Attribute_Detail_Citation:

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
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:
For data terms and conditions, go to <http://dc.gov/page/terms-and-conditions-use-district-data>
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 0.001
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Ordering_Instructions: All data is available at <http://opendata.dc.gov>

Metadata_Reference_Information:
Metadata_Date: 20080626
Metadata_Review_Date: 10/25/2005
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
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:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

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