The District of Columbia

Voting Precincts - 2012 (VotePre12Ply)

Voting Precincts - 2012 (VotePre12Ply)

by Board of Elections and Ethics on 20120512

Keywords
About: society, boundary, election, Voting Precincts, Electoral District, Precincts, Board Of election And Ethics
Taking place at: Washington, D.C., District of Columbia, DC, DC GIS, DCGIS

Abstract


Voting Precincts 2012. The dataset contains polygons representing District of Columbia voting precinct boundaries. Precincts were changed based on the ward redistricting following the 2010 census. Precincts were established by the DC Board of Elections and Ethics (DC BOEE) and 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.

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

D.C. Board of Elections and Ethics

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
In process of validation 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

  • 1992 Ward, ANC, SMD, Voting Precinct map
    paper, boundaries of 1990 based voting precincts which were altered to fit the new 2000 Ward boundaries
    1992 Ward, ANC, SMD, Voting Precinct map
    by DC Board of Elections and Ethics, 1992
  • Board of Elections and Ethics Instructions
    interview, boundaries and attributes
    Board of Elections and Ethics Instructions
    by DC Board of Elections and Ethics
Lineage / Processes
GIS Data Coordinator
in D.C. Office of the Chief Technology Officer



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

Precincts were identified from public records (D.C. Board of Elections and Ethics) 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 precinct datasets were selected from the snapbase coverage, creating coincident geography with the other DC GIS datasets. Updates were made, in conjuction with BOEE, in 2002 following the snapbase.

When imported into the DC GIS geodatabase the coverages shift 0.01mm since the geodatabase supports only 11 digits of precision, not double precision (16 digits). 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.

in OCTO



Updated voting precincts to reflect the 2008 elections. Two voting precincts near chinatown had new boundaries.

in OCTO



Edits were made to voter precinct boundaries 6, 7, 11, and 80 to match the shared portion of the 2002 Ward boundary layer (Ward02Ply). Post-edit testing verified that all residences remained in the same precincts prior to boundary updates.
Dataset copied.

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,

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

Entity

VotePre12Ply

Attributes

  • SHAPE_LEN / ESRI
    Internal feature number.
  • OBJECTID / ESRI
    Internal feature number.
  • NAME
    Precinct name
  • WEB_URL
    Precinct web link url
  • GIS_ID
    OCTO GIS sequential identifier
  • OBJECTID_1 / ESRI
    Internal feature number.
  • Shape / ESRI
    Feature geometry.
  • SHAPE / ESRI
    Feature geometry.
  • Shape_Area / ESRI
    Area of feature in internal units squared.

Metadata

FGDC Content Standards for Digital Geospatial Metadata / FGDC-STD-001-1998 as of 20120412

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

phone: REQUIRED: The telephone number by which individuals can speak to the organization or individual.
fax: (202) 727-5660
hours: 8:30 am - 5 pm