The District of Columbia

Enterprise and Empowerment Zones (EntZonePly)

Enterprise and Empowerment Zones (EntZonePly)

by Office of Planning on 06/10/2002

Keywords
About: Government Jurisdictions, Census Tracts, Tracts, Census, Enterprise Zone, Economic Incentive Zones, economy, boundaries
Taking place at: Washington, D.C., District of Columbia, DC, DC GIS, DCGIS

Abstract

Enterprise Zone. The dataset polygons represent locations and attributes of the DC Enterprise Zone, which is a subset of the census tracts, 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. This data set has polygons for both low level (10%-20% poverty level) and high-level (over 20% poverty level) zones.

Census tracts were identified from public records (US Census Bureau and DC Office of Planning) and initially created selecting street arcs from the WGIS planimetric Street centerlines and, where necessary, heads-up digitized from the 1995/1999 orthophotographs.

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 - 5:00 pm

Credits

DC GIS, US Internal Revenue Service, US Department of Housing and Urban Development

Data accuracy

Accuracy
Data believed to be complete and accurate as of the time period cited. Subject to change. Digital version compared with original source data for accuracy and completeness. In process of validation by source and/or responsible agency.

Logical consistency
Not validated, currently under review by source and/or responsible agency.

Completeness
Data believed to be complete and accurate, subject to change. Digital version compared with original source data for accuracy and completeness. In process of validation by source and/or responsible agency.

Horizontal positional accuracy
In process of validation by source and/or responsible agency.

Vertical positional accuracy
N/A

Lineage / Sources

  • 1990 census tracts
    shapefile, geography
    1990 census tracts
    by DC GIS
  • 1990 census statistics
    tabular, attributes
    1990 census statistics
    by U.S. Census Bureau
  • DC Marketing Center website
    by DC Marketing Center, 2001
  • National Tax Services, Inc. website
    online, attributes
    National Tax Services, Inc. website
    by National Tax Services, Inc., 2001
Lineage / Processes
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 - 5:00 pm
Enterprise Zone is defined as a subset of the 192 1990 District of Columbia census tracts with over 10% poverty level for federal purposes. The polygon was created by attributing the 1990 census tracts with appropriate poverty figures and selecting those with over 10% poverty rate. Census tracts were identified from public records (US Census Bureau and DC Office of Planning) and initially created selecting street arcs from the WGIS planimetric Street centerlines and, where necessary, heads-up digitized from the 1995 orthophotographs. A base ArcInfo coverage of correct line work (snapbase.e00) for all DC data was developed after the final delivery of the planimetric street centerlines. The datasets were selected from the snapbase coverage, creating coincident geography with the other DC GIS datasets.

Attribute data was provided by United States Census Bureau and the DC Office of Planning and the DC Marketing Center website, ).

Planimetrics were created at a scale of 1:1,000. This means that a well defined feature falls within two feet of true position.

All DC GIS data is stored and exported in Maryland State Plane coordinates NAD 83 meters.

Distribution

Most DC GIS datasets can be downloaded from "http://dcgis.dc.gov" on the data center page. Orders can also be made by contacting OCTO GIS at "dcgis@dc.gov", especially for datasets not available for download.

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 - 5:00 pm

Entity

DCGIS.EntZonePly

Attributes

  • Shape / ESRI
    Feature geometry.
  • OBJECTID
    unique id
  • AREA1
    area one
  • PERIMETER
    perimeter
  • TRACTS90_
    Coverage artifact
  • TRACTS90_I
    Coverage artifact
  • TRACTNO
    census tract number
  • DESC_
    Zone description
  • WEB_URL
    Zone web link url
  • GIS_ID
    OCTO GIS sequential identifier
  • SUBTYPE
    Zone subtype
  • SHAPE / ESRI
    Feature geometry.
  • SHAPE.AREA
  • SHAPE.LEN

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 - 5:00 pm