The District of Columbia

Heliports (HeliportPt)

Heliports (HeliportPt)

by US Department of Transportation - Bureau of Transportation Statistics on 11/10/2005

Keywords
About: No Fly Zones, Homeland Security, Flight, Heliports, transportation, Geographic Information System, National Security, aviation, Air Space, Airports, society, Planimetrics
Taking place at: Washington, D.C., District of Columbia, DC, DC GIS, DCGIS

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.

Access constraints

Contact OCTO GIS. Any data obtained outside of OCTO GIS are unauthorized copies.

Use constraints

Acknowledgment of the DC Geographic Information Systems Program (DC GIS). The District of Columbia Government makes no claims as to the completeness, accuracy or content of any data contained hereon, and makes no representation of any kind, including, but not limited to, the warranty of the accuracy or fitness for a particular use, nor are any such warranties to be implied or inferred with respect to the information or data furnished herein.

Point of contact

GIS Data Coordinator
in D.C. Office of the Chief Technology Officer

441 4th St NW, Suite 930 South
Washington DC, 20001, USA

fax: (202) 727-5660
hours: 8:30 am - 5 pm

Credits

US Department of Transportation - Bureau of Transportation Statistics (BTS)

Data accuracy

Accuracy
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
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
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.

Horizontal positional accuracy
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
N/A

Lineage / Sources

Lineage / Processes

Distribution

Contact OCTO

Distribution liability
Acknowledgment of the DC Geographic Information Systems Program (DC GIS). The District of Columbia Government makes no claims as to the completeness, accuracy or content of any data contained hereon, and makes no representation of any kind, including, but not limited to, the warranty of the accuracy or fitness for a particular use, nor are any such warranties to be implied or inferred with respect to the information or data furnished herein.

Distributed by
GIS Data Coordinator
in D.C. Office of the Chief Technology Officer

441 4th St NW, Suite 930 South
Washington DC, 20001, USA

fax: (202) 727-5660
hours: 8:30 am - 5 pm

Entity

DCGIS.HeliportPt / OCTO
National Transportation Atlas Database airport/heliport locations within DC only

Attributes

  • TELEPHONE / OCTO & FAA
    Telephone number
  • Shape / ESRI
    Feature geometry
  • GIS_ID / OCTO
    OCTO GIS sequential identifier
  • NAME / OCTO & FAA
    Facility Name
  • OWNERSHIP / OCTO & FAA
    Owner
  • UNICOM
    Unicom
  • OBJECTID / ESRI
    Internal feature number.
  • ADDRESS / OCTO
    Facility Location
  • SHAPE / ESRI
    Feature geometry.

Metadata

FGDC Content Standards for Digital Geospatial Metadata / FGDC-STD-001-1998 as of 06/26/2008

Provided by
GIS Data Coordinator
in D.C. Office of the Chief Technology Officer

441 4th St NW, Suite 930 South
Washington DC, 20001, USA

fax: (202) 727-5660
hours: 8:30 am - 5 pm