District Agency Location

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Office of the Chief Technology Officer

Publication_Date: 20130704

Title: District Agency Location

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publisher: DC GIS

Online_Linkage: \\10.34.70.24\data\Data_Load.gdb

Larger_Work_Citation:

Citation_Information:

Originator: DC GIS

Title: DC Geographic Information System

Geospatial_Data_Presentation_Form: vector digital data

Description:

Abstract:

DC Government: agency locations. The dataset contains locations and attributes of DC Agencies, 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.
Databases researched by the DC Office of the Chief Technology Officer (OCTO) identified DC Agency locations and DC GIS staff geo-processed the data.
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.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20130704

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -77.064337

East_Bounding_Coordinate: -76.947810

North_Bounding_Coordinate: 38.958821

South_Bounding_Coordinate: 38.820416

Data_Set_G-Polygon:

Data_Set_G-Polygon_Outer_G-Ring:

G-Ring_Point:

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: Facility

Theme_Keyword: Municipal

Theme_Keyword: building

Theme_Keyword: Facility

Theme_Keyword: society

Theme_Keyword: DC Government

Theme_Keyword: Agency

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_Voice_Telephone: (202) 727-1761

Contact_Facsimile_Telephone: (202) 727-5660

Contact_Electronic_Mail_Address: [email protected]

Hours_of_Service: 8:30 am - 5 pm

Data_Set_Credit: Various sources

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.4000

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

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

Logical_Consistency_Report: In process of validation by source and/or responsible agency.

Completeness_Report:

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

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: In process of validation by source and/or responsible agency.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: N/A

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: DC Government

Publication_Date: 04/18/2003

Title: DC.gov

Other_Citation_Details: OCTO GIS staff culled agencies from web site.

Online_Linkage: <http://octo.dc.gov/main.shtm>

Type_of_Source_Media: web site

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 04/18/2003

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: DC government homepage

Source_Contribution: locations and attributes

Source_Information:

Source_Citation:

Citation_Information:

Originator: Departmet of Employment Services

Publication_Date: 2003

Title: DOES website

Online_Linkage: <http://does.dc.gov/main.shtm>

Type_of_Source_Media: online

Source_Citation_Abbreviation: DOES website

Source_Contribution: location and attributes

Source_Information:

Type_of_Source_Media: online

Source_Citation_Abbreviation: DMV website

Source_Contribution: attribute and location

Process_Step:

Process_Description:

Data Collection:
Through the application's functionality and usability requirements, OCTO GIS staff compose a list of data layers needed for the application. From this, staff determine the appropriate source and location for each layer, and assess the effort needed to get it.
Some layers, already part of the DC Atlas, are incorporated into the data store. For DC agency data, agency liaisons ask DC personnel about data availability and acquisition. For third-party data, OCTO-GIS evaluates options and either finds alternatives, purchases, or licenses the data. In some cases, staff create data from existing sources and then add required attribution.

Process_Date: 5/31/03

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: D.C. Office of the Chief Technology Officer

Contact_Person: GIS Data Coordinator

Contact_Address:

Address: 200 I Street SE, 5th Floor

Contact_Voice_Telephone: (202) 727-1761

Contact_Facsimile_Telephone: (202) 727-5660

Contact_Electronic_Mail_Address: [email protected]

Hours_of_Service: 8:30 am - 5 pm

Process_Step:

Process_Description:

Data Preparation:
After the collection, the data team prepares the data for qa/qc and inclusion in the data store. This step involves: 1.) configuring the datasets into a common form; 2.) geocoding tabular data using a common address base; 3.) generating or converting paper documents into digital format; 4.) populating required fields; and 5.) resolving data duplication and conflicts.
For geocoding, staff use a derivative of the Office of Tax and Revenue (OTR) owner-point database and the District Department of Transportation's (DDOT) street inventory system (SIS) street centerline file as the address base. Through automated procedures on the owner-point derivative file, personnel clean and standardize the irregular premise address information into street number, name, type, and quadrant fields. Also, staff use the merged SIS file containing the five centerlines classifications (street, alley, drive, service road, and ramp).
First, staff match tabular data to the standardized owner-points. Then, the rest are matched to the street centerline file. After this, staff compose a list of the unmatched records needing further research. Since not all of the records geocode, staff note the final matching figures (number of hits, rejects, and the total).
For web links, team members check the validity of existing links and find matching web sites that directly represent the feature. Staff use several web search engines to find appropriate web links. DC government sites are primarily used, when available.
To eliminate data redundancy, staff identify possible conflicting layers and duplicate features. In some cases, staff pick the best source. In others, the attributes in the multiple layers are consolidated. Sometimes, staff map the conflicting layers and investigate feature clusters as areas of potential duplication.
Where applicable, team members move points to the center of the corresponding buildings. Staff then select the building footprints and assign the appropriate GIS_ID value that links the points with the appropriate building polygon(s).

Process_Date: 5/31/03

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: D.C. Office of the Chief Technology Officer

Contact_Person: GIS Data Coordinator

Contact_Address:

Address: 200 I Street SE, 5th Floor

Contact_Voice_Telephone: (202) 727-1761

Contact_Facsimile_Telephone: (202) 727-5660

Contact_Electronic_Mail_Address: [email protected]

Hours_of_Service: 8:30 am - 5 pm

Process_Step:

Process_Description:

Data QA/QC
After data preparation, the data team performs qa/qc. Various processes check the following parameters: 1.) spatial and attribute accuracy; 2.) data usability; 3.) data dictionary adherence; 4.) specialized metrics, such as connectivity and directionality; and 5.) data load success. These checks are, as follows:
Visual - staff perform a structured visual check of the data, using on-screen, plotting, and customized routines, and, at times, comparing it to the source documents.
Edge-matching - For grided datasets, staff review the spatial capture, connectivity, and attribution of data across tile boundaries, where applicable.
Automated - Staff compare the data to documented standards and source files through automated procedures and reports.
Specialized - Staff review more specific data parameters, such as directionality, connectivity , and topology.
Edit Verification - Staff ensure that previous errors are fixed to specifications. ? Field Verification - Occasionally, through field work, team members compare the GIS data with the real world.
Data Loading - Staff evaluate the success and evaluate the process of loading raw data into a structured database.
Since most of the data use addresses as the spatial reference, staff compare the data against base layers (buildings, roads, street centerlines, owner-points, parks, and orthophotography) and move features where needed.
In some cases, OCTO GIS personnel produce maps and reports for source agency review. Through an iterative process, staff modify and enhance the layer to agency specifications. For some datasets, the agency endorses the final product for data load and publication.

Process_Date: 5/31/03

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: D.C. Office of the Chief Technology Officer

Contact_Person: GIS Data Coordinator

Contact_Address:

Address: 200 I Street SE, 5th Floor

Contact_Voice_Telephone: (202) 727-1761

Contact_Facsimile_Telephone: (202) 727-5660

Contact_Electronic_Mail_Address: [email protected]

Hours_of_Service: 8:30 am - 5 pm

Process_Step:

Process_Description:

Final Data Preparation:
For final preparation, staff ensure all of the needed items are present (unneeded items are deleted), the metadata is complete and current, the shapefile is in the proper projection, and a spatial index exists. If not already done, a GIS_ID (unique id for features in the layer) is computed with automated tools.

Process_Date: 5/31/03

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: D.C. Office of the Chief Technology Officer

Contact_Person: GIS Data Coordinator

Contact_Address:

Address: 200 I Street SE, 5th Floor

Contact_Voice_Telephone: (202) 727-1761

Contact_Facsimile_Telephone: (202) 727-5660

Contact_Electronic_Mail_Address: [email protected]

Hours_of_Service: 8:30 am - 5 pm

Process_Step:

Process_Description:

Data Load:
After final preparation, OCTO GIS staff load the data into the application's test database, where SDE handles the spatial data and ORACLE manages the attribute information.
First, staff add primary key and name fields to the layer. Second, personnel register the layer into the appropriate tables and establish the unique feature-ids (the link between the spatial object and its attributes) specific to that layer. Then, staff populate feature, search, address, web url, contact, data source, and other tables, where applicable. For point layers, team members calculate each feature's geographic extent and populate the features table. Lastly, each layer is intersected with the base geography (2002 Advisory Neighborhood Commission areas, 2002 wards, zip codes, neighborhoods, and neighborhood clusters) to populate the "what's-within" tables for the web reports. Views are refreshed when needed.

Process_Date: 5/31/03

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: D.C. Office of the Chief Technology Officer

Contact_Person: GIS Data Coordinator

Contact_Address:

Address: 200 I Street SE, 5th Floor

Contact_Voice_Telephone: (202) 727-1761

Contact_Facsimile_Telephone: (202) 727-5660

Contact_Electronic_Mail_Address: [email protected]

Hours_of_Service: 8:30 am - 5 pm

Process_Step:

Process_Description:

Data Load QA/QC
OCTO GIS performs spatial checks comparing the test SDE database with source files to check for completeness, spatial integrity, and proper attribution. First, staff compare the test database contents with documented standards. Then, team members check the geography and attribution, as well as compare dataset parameters between both layers.
The data team performs attribute checks on the ORACLE database to ensure the existence and validity of views. Again, staff compare the database contents with documented standards. For critical views, personnel check the view structures and data against source files and documentation.

Process_Date: 5/31/03

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: D.C. Office of the Chief Technology Officer

Contact_Person: GIS Data Coordinator

Contact_Address:

Address: 200 I Street SE, 5th Floor

Contact_Voice_Telephone: (202) 727-1761

Contact_Facsimile_Telephone: (202) 727-5660

Contact_Electronic_Mail_Address: [email protected]

Hours_of_Service: 8:30 am - 5 pm

Process_Step:

Process_Description: Metadata imported.

Source_Used_Citation_Abbreviation: C:\DOCUME~1\roew\LOCALS~1\Temp\xml1885.tmp

Process_Contact:

Contact_Information:

Contact_Address:

Address: 200 I Street SE, 5th Floor

Process_Step:

Process_Description: Metadata imported.

Source_Used_Citation_Abbreviation: C:\OCTOGIS\Data\OCTO\DCAgencyPt_old.shp.xml

Process_Contact:

Contact_Information:

Contact_Address:

Address: 200 I Street SE, 5th Floor

Process_Step:

Process_Description:

OCTO GIS staff visited DOES source material to verify and correct the locations of DOES one-stop centers. Staff deleted the existing locations, replacing them with seven new DOES one-stop sites.

Process_Date: 9/15/03

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: OCTO

Contact_Person: GIS Data Coordinator

Contact_Address:

Address: 200 I Street SE, 5th Floor

Contact_Voice_Telephone: 202-727-1761

Contact_Facsimile_Telephone: 202-727-5660

Contact_Electronic_Mail_Address: [email protected]

Hours_of_Service: 8:30am - 5pm

Process_Step:

Process_Description: Metadata imported.

Source_Used_Citation_Abbreviation: E:\DCGISDATA_WORKSPACE\OCTO\DCAgencyPt_old.shp.xml

Process_Contact:

Contact_Information:

Contact_Address:

Address: 200 I Street SE, 5th Floor

Process_Step:

Process_Description: Metadata imported.

Source_Used_Citation_Abbreviation: C:\temp\DCGIS.xml

Process_Contact:

Contact_Information:

Contact_Address:

Address: 200 I Street SE, 5th Floor

Process_Step:

Process_Description:

DC GIS updated the DC agency point from the directory contained on the dc.gov website and the DMV website.

Process_Date: 20081017

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: OCTO

Contact_Address:

Address: 200 I Street SE, 5th Floor

Process_Step:

Process_Description: Dataset copied.

Source_Used_Citation_Abbreviation:

Server=10.1.11.144; Service=5151; User=intragis_dcatlas; Version=SDE.DEFAULT

Process_Contact:

Contact_Information:

Contact_Address:

Address: 200 I Street SE, 5th Floor

Process_Step:

Process_Description: added does sites.

Process_Date: 20081229

Process_Contact:

Contact_Information:

Contact_Address:

Address: 200 I Street SE, 5th Floor

Process_Step:

Process_Description:

Review the DC.GOV page for district agency location and contact information. This layer represents primary locations for District Agencies, MVA sites, and other public service locations. Places such as libraries, fire, and police stations are in other layers.

Process_Date: 20100514

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: OCTO

Contact_Address:

Address: 200 I Street SE, 5th Floor

Process_Step:

Process_Description:

Moved DDOT to 55 M ST SE and added 414 FARRAGUT ST NW as a DDOT Maintenance Yard. Checked the remaining records against the Agency Directory found on the main dc.gov site (locations and web urls). Employee Appeals office also moved to 1100 4th St SW.

Process_Date: 20110513

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: OCTO

Contact_Address:

Address: 200 I Street SE, 5th Floor

Process_Step:

Process_Description:

Changed the location of two dc agencies:
DOH 899 North Capitol Street, NE Washington, DC 20002
PERB 1100 4th Street, SW Suite E630 Washington, DC 20024

Process_Date: 20111121

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: OCTO

Contact_Address:

Address: 200 I Street SE, 5th Floor

Process_Step:

Process_Description: Added GIS_ID column

Process_Contact:

Contact_Information:

Contact_Address:

Address: 200 I Street SE, 5th Floor

Process_Step:

Process_Description: Moved DPR HQ to U street Corridor.

Process_Date: 20120512

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: OCTO

Contact_Address:

Address: 200 I Street SE, 5th Floor

Process_Step:

Process_Description:

Added DC Crime Lab and Public health lab to data. Moved the Office of the Medical Examiner to same location.

Process_Date: 20120515

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: OCTO

Contact_Address:

Address: 200 I Street SE, 5th Floor

Process_Step:

Process_Description: Moved CFSA to 200 I street SE,

Process_Date: 20121120

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: OCTO

Contact_Address:

Address: 200 I Street SE, 5th Floor

Process_Step:

Process_Description: Moved FEMS, OCTO, and DOC.

Process_Date: 2130704

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: OCTO

Contact_Address:

Address: 200 I Street SE, 5th Floor

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000000

Ordinate_Resolution: 0.000000

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: DCAgencyPt

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: ID

Attribute_Definition: Unique ID

Attribute:

Attribute_Label: ADDRESS

Attribute_Definition: Physical location address

Attribute:

Attribute_Label: ABBREV

Attribute_Definition: Agency abbreviation

Attribute:

Attribute_Label: WEBURL

Attribute_Definition: Agency website

Attribute:

Attribute_Label: DEPARTMENT

Attribute_Definition: Agency department

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

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: SHAPE

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: ADDRID

Attribute:

Attribute_Label: AddrID

Attribute:

Attribute_Label: MATCHADDR

Attribute:

Attribute_Label: NAME

Attribute:

Attribute_Label: X

Attribute:

Attribute_Label: Y

Attribute:

Attribute_Label: MatchAddr

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_Voice_Telephone: (202) 727-1761

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: 0.008

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: 20120514

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_Voice_Telephone: (202) 727-1761

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

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile