Intersection Point
Metadata also available as
Metadata:
- Identification_Information:
-
- Citation:
-
- Citation_Information:
-
- Originator: DC GIS
- Publication_Date: 20110517
- Title: Intersection Point
- Geospatial_Data_Presentation_Form: vector digital data
- Publication_Information:
-
- Publisher: DC GIS
- Online_Linkage:
-
Server=10.1.11.144; Service=5151; User=dcgis; Version=SDE.DEFAULT
- Larger_Work_Citation:
-
- Citation_Information:
-
- Originator: DC GIS
- Title: DC Geographic Information System
- Geospatial_Data_Presentation_Form: vector digital data
- Description:
-
- Abstract:
-
Intersection Point locations. The dataset contains locations and attributes of Intersections, 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 Intersection Points - MAR is primarly derived from DC Department of Transportation's (DDOT) Intersection Table in their Street Spatial Database (SSD). Regular at grade intersections (TYPE = 'REGULAR') as well as overpasses (TYPE = 'OVERPASS'), underpasses (TYPE = 'UNDERPASS') and ramps (TYPE = 'RAMP') are included. The overpasses, underpasses and ramps are based on street centerlines from DDOT.
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: 20110517
- Currentness_Reference: publication date
- Status:
-
- Progress: Complete
- Maintenance_and_Update_Frequency: As needed
- Spatial_Domain:
-
- Bounding_Coordinates:
-
- West_Bounding_Coordinate: -77.114395
- East_Bounding_Coordinate: -76.909401
- North_Bounding_Coordinate: 38.995255
- South_Bounding_Coordinate: 38.809864
- Data_Set_G-Polygon:
-
- Data_Set_G-Polygon_Outer_G-Ring:
-
- G-Ring_Point:
- Keywords:
-
- Theme:
-
- Theme_Keyword_Thesaurus: none
- Theme_Keyword: location
- Theme_Keyword: Intersection
- Theme_Keyword: Ramps
- Theme_Keyword: Overpass
- Theme_Keyword: Underpass
- 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: DDOT
- 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: United States Postal Service
- Publication_Date: 2002
- Title: USPS website
- Other_Citation_Details: site visited august 2002.
- Online_Linkage: <http://www.usps.com/>
- Type_of_Source_Media: Digital
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 2002
- Source_Currentness_Reference: publication date
- Source_Citation_Abbreviation: DDOT Street Spatial Database
- Source_Contribution: locations and attributes
- Process_Step:
-
- Process_Description:
-
Data Collection:
Most of the data is collected from DDOT's (DC Department of Transportation) Street Spatial Database (SSD). There is a table called intersection.
- Process_Date: 20091113
- 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_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: 20110517
- 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_Facsimile_Telephone: (202) 727-5660
- Contact_Electronic_Mail_Address: [email protected]
- Hours_of_Service: 8:30 am - 5 pm
- Process_Step:
-
- Process_Description: Dataset copied.
- Source_Used_Citation_Abbreviation: C:\DATA\GIS_DATA\ACTIVE\MARDATA\INTERSECTIONS\IntersectionPt
- Process_Date: 20110517
- Process_Time: 16351700
- 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\IntersectionPt.xml
- Process_Date: 20110517
- Process_Time: 16524600
- Process_Contact:
-
- Contact_Information:
-
- Contact_Address:
-
- Address: 200 I Street SE, 5th Floor
- 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: 18276
- Spatial_Reference_Information:
-
- Horizontal_Coordinate_System_Definition:
-
- Planar:
-
- Grid_Coordinate_System:
-
- Grid_Coordinate_System_Name: State Plane Coordinate System
- 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: 0.000100
- Ordinate_Resolution: 0.000100
- 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.IntersectionPt
- Attribute:
-
- Attribute_Label: REFX
- Attribute_Definition: Reference X
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
- Attribute:
-
- Attribute_Label: REFY
- Attribute_Definition: Reference Y
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
- Attribute:
-
- Attribute_Label: NODEID
- Attribute_Definition: Node Identifier
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
- Attribute:
-
- Attribute_Label: INTERSECTIONID
- Attribute_Definition: Intersection identifier
- Attribute:
-
- Attribute_Label: SOURCE
- Attribute_Definition: Source
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
- Attribute:
-
- Attribute_Label: LATITUDE
- Attribute_Definition: Latitude value
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
- Attribute:
-
- Attribute_Label: LONGITUDE
- Attribute_Definition: Longitude value
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
- Attribute:
-
- Attribute_Label: SHAPE
- Attribute_Definition: Feature geometry.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Coordinates defining the features.
- Attribute:
-
- Attribute_Label: Shape
- Attribute_Definition: Feature geometry.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Coordinates defining the features.
- Attribute:
-
- Attribute_Label: FULLSTREET1DISPLAY
- Attribute_Definition: Full intersection description
- Attribute:
-
- Attribute_Label: MARID
- Attribute_Definition: Master Address Repository Unique Identifier
- Attribute:
-
- Attribute_Label: STREET1ID
- Attribute_Definition: Street 1 Identifier
- Attribute:
-
- Attribute_Label: STREET2ID
- Attribute_Definition: Street 2 Identifier
- Attribute:
-
- Attribute_Label: FULLSTREET2DISPLAY
- Attribute_Definition: Full intersection description 2
- Attribute:
-
- Attribute_Label: FULLINTERSECTION
- Attribute_Definition: Full intersection name
- Attribute:
-
- Attribute_Label: ST1NAME
- Attribute_Definition: Street Name 1
- Attribute:
-
- Attribute_Label: ST1TYPE
- Attribute_Definition: Street 1 Type
- Attribute:
-
- Attribute_Label: NATIONALGRID
- Attribute_Definition: National grid coordinates
- Attribute:
-
- Attribute_Label: STREET1SEGID
- Attribute_Definition: Street 1 Segment Identifier
- Attribute:
-
- Attribute_Label: STREET2SEGID
- Attribute_Definition: Street 2 Segment Identifier
- Attribute:
-
- Attribute_Label: ST1QUAD
- Attribute_Definition: Street 1 Quadrant
- Attribute:
-
- Attribute_Label: INTERSECTION_TYPE
- Attribute_Definition: Intersection type
- Attribute:
-
- Attribute_Label: ST2NAME
- Attribute_Definition: Street 2 Name
- Attribute:
-
- Attribute_Label: ST2TYPE
- Attribute_Definition: Street 2 Type
- Attribute:
-
- Attribute_Label: ST2QUAD
- Attribute_Definition: Street 2 Quadrant
- 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: 0.488
- 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: 20110517
- Metadata_Review_Date: 20040107
- 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
Generated by mp version 2.9.12 on Thu Jun 25 15:31:46 2015