Bureau of the Census Urbanized Area Boundaries

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: US Bureau of the Census (BOC)

Originator:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Publication_Date: 1990

Title: Bureau of the Census Urbanized Area Boundaries

Edition: 2000

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Suitland, MD

Publisher: US Bureau of the Census (BOC)

Online_Linkage: <http://www.bts.gov/programs/geographic_information_services/>

Larger_Work_Citation:

Citation_Information:

Originator:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Publication_Date: 2006

Title: National Transportation Atlas Databases (NTAD) 2006

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Washington DC

Publisher:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Online_Linkage: <http://www.bts.gov/programs/geographic_information_services/>

Description:

Abstract:

The Bureau of the Census Urbanized Area Boundaries data set contains boundary information for urban areas with a population greater than 50,000. The data set includes boundaries for urban areas in all 50 states, the District of Columbia, and Puerto Rico. A UA may contain both place and nonplace territory. The U.S. Census Bureau delineates UAs to provide a better separation of urban and rural territory, population, and housing in the vicinity of large places. At least 35,000 people in a UA must live in an area that is not part of a military reservation.

Purpose:

The data provide users with information about the locations, names, and size of urban areas. The data are used primarily for national planning applications.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2000

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Irregular

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -158.231956

East_Bounding_Coordinate: 145.794619

North_Bounding_Coordinate: 64.920865

South_Bounding_Coordinate: 13.337161

Keywords:

Theme:

Theme_Keyword_Thesaurus: polygon

Theme_Keyword: Urbanized Area

Theme_Keyword: Urban

Theme_Keyword: Polygons

Theme_Keyword: Territory

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: United States

Place_Keyword: US

Place_Keyword: USA

Place_Keyword: US Territories

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: United State of America

Stratum:

Stratum_Keyword_Thesaurus: None

Stratum_Keyword: ground

Temporal:

Temporal_Keyword_Thesaurus: None

Temporal_Keyword: 2000

Temporal_Keyword: 2006

Access_Constraints: None

Use_Constraints:

Acknowledgment of the Bureau of the Census and the Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS) National Transportation Atlas Database (NTAD) 2006 would be appreciated in products derived from these data.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Contact_Person: Geospatial Information Program

Contact_Address:

Address_Type: mailing and physical address

Address:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Address: 400 7th Street, S.W. Room 4117

City: Washington

State_or_Province: District of Columbia

Postal_Code: 20590

Country: USA

Contact_Voice_Telephone: 202-366-DATA

Contact_Facsimile_Telephone: 202-366-3640

Contact_Electronic_Mail_Address: answers@bts.gov

Data_Set_Credit: The data was acquired from the US Bureau of the Census.

Security_Information:

Security_Classification: Unclassified

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 9.0.0.535

Cross_Reference:

Citation_Information:

Originator:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Publication_Date: 2006

Title: National Transportation Atlas Databases (NTAD) 2006

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Suitland, MD

Publisher: US Bureau of the Census (BOC)

Online_Linkage: <http://www.bts.gov/programs/geographic_information_services/>

Larger_Work_Citation:

Citation_Information:

Publication_Information:

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The Bureau of Census supplied the attributes. For Census 2000, UA delineations constitute a "zero-based" approach that requires no "grandfathering" of UA boundaries from the 1990 census. Because of the more stringent density requirements (and the less restrictive extended place criteria), some territory that was classified as urbanized for the 1990 census has been reclassified as rural. In addition, some areas that were identified as UAs for the 1990 census have been reclassified as urban clusters.

The title of a UA may contain up to three incorporated place names, and will include the two-letter U.S. Postal Service abbreviation for each state into which the UA extends. However, if the UA does not contain an incorporated place, the UA title will include the single name of the geographic entity that occurs first from the following list: census designated place, minor civil division, or populated place recognized by the U.S. Geological Survey.

Each UA is assigned a five-digit census code in alphabetical sequence on a nationwide basis, interspersed with the codes for urban clusters (UCs), also in alphabetical sequence. For the 1990 census, the U.S. Census Bureau assigned a four-digit UA code based on the MA codes. For Census 2000, a separate flag is included in data tabulation files to differentiate between UAs and UCs. In printed reports, this differentiation is included in the name.

Quantitative_Attribute_Accuracy_Assessment:

Attribute_Accuracy_Value: unknown

Attribute_Accuracy_Explanation: None

Logical_Consistency_Report:

All node-link and polygon topological relationships are created and verified using ESRI Arc/Info.

Completeness_Report:

A total of 465 distinct Urbanized areas are identified in this data set.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The Bureau of the Census Urbanized Area database was derived from the TIGER data base. It was created from data created 100,000 or better and as such has a positional accuracy of +/- 80m.

Quantitative_Horizontal_Positional_Accuracy_Assessment:

Horizontal_Positional_Accuracy_Value: 1:

Horizontal_Positional_Accuracy_Explanation: 1: = Unknown

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: US Bureau of the Census (BOC)

Originator:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Publication_Date: 1990

Title: Bureau of the Census Urbanized Area Boundaries

Edition: 2000

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Suitland, MD

Publisher: US Bureau of the Census (BOC)

Online_Linkage: <http://www.bts.gov/programs/geographic_information_services/>

Larger_Work_Citation:

Citation_Information:

Originator:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Publication_Date: 2006

Title: National Transportation Atlas Databases (NTAD) 2006

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Washington DC

Publisher:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Online_Linkage: <http://www.bts.gov/programs/geographic_information_services/>

Source_Scale_Denominator: 100,000

Type_of_Source_Media: CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1990

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: BOC

Source_Contribution: All data contained in the file.

Process_Step:

Process_Description:

Downloaded the Urbanized Areas from <http://www.census.gov/geo/www/cob/ua2000.html>. Queried out Urbanized Area from the LSAD_T column and dissolved by UA. Created the centroid of the polygon took the original NAME column and separated the column into two: Name and State.

Process_Date: 200403

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Contact_Person: Geospatial Information Program

Contact_Address:

Address_Type: mailing and physical address

Address:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Address: 400 Seventh Street, S.W. Room 4117

City: Washington

State_or_Province: DC

Postal_Code: 20590

Country: USA

Contact_Voice_Telephone: 202-366-DATA

Contact_Facsimile_Telephone: 202-366-3640

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon

Point_and_Vector_Object_Count: 465

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000001

Longitude_Resolution: 0.000001

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: D_WGS_1984

Ellipsoid_Name: WGS_1984

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257224

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: boc_uza

Entity_Type_Definition: Bureau of the Census Urbanized Area Boundaries

Entity_Type_Definition_Source:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Attribute:

Attribute_Label: FID

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:

Enumerated_Domain:

Enumerated_Domain_Value: Polyline (or Polygon | or Point)

Enumerated_Domain_Value_Definition: Polylinear (or Polygon | or Point) Shapes as defined by ArcView

Enumerated_Domain_Value_Definition_Source: ArcView Internal Attribute

Attribute:

Attribute_Label: NAME

Attribute_Definition: Name of the Urbanized Area

Attribute_Definition_Source: BOC

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: 1990 Urbanized Area Codes and Names

Codeset_Source: Bureau of Census

Attribute:

Attribute_Label: ST

Attribute_Definition: State names that fall within that polygon

Attribute_Definition_Source: RITA/BTS

Attribute_Domain_Values:

Unrepresentable_Domain: Multiple states are represented

Attribute:

Attribute_Label: LSAD_

Attribute_Definition: Census identifying it is an Urbanized Area

Attribute_Definition_Source: RITA/BTS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Urbanized Area

Enumerated_Domain_Value_Definition: Census Identification for Urban Areas

Enumerated_Domain_Value_Definition_Source: BOC

Attribute:

Attribute_Label: UA_

Attribute_Definition:

Each UA is assigned a five-digit census code in alphabetical sequence on a nationwide basis, interspersed with the codes for urban clusters (UCs), also in alphabetical sequence.

Attribute_Definition_Source: BOC

Attribute_Domain_Values:

Unrepresentable_Domain: Unique numbering convention for the specify polygon

Attribute:

Attribute_Label: CNTRLAT

Attribute_Definition:

Centroid latitude value for the polygon expressed as a signed integer with six implied decimal places.

Attribute_Definition_Source: RITA/BTS

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 90 degrees North

Range_Domain_Maximum: 90 degrees South

Attribute:

Attribute_Label: CNTRLONG

Attribute_Definition:

Centroid longitude value for the polygon expressed as a signed integer with six implied decimal places.

Attribute_Definition_Source: RITA/BTS

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 180 degrees East

Range_Domain_Maximum: 180 degrees West

Attribute:

Attribute_Label: VERSION

Attribute_Definition:

The VERSION is a 2-digit number that will be incremented for all records in the database whenever a new release is distributed.

Attribute_Definition_Source: Assigned

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 00

Range_Domain_Maximum: 99

Attribute:

Attribute_Label: REVISION

Attribute_Definition:

REVISION is a 2-digit number that will be incremented individually for each record whenever a change is made to one of its fields.

Attribute_Definition_Source: Assigned

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 00

Range_Domain_Maximum: 99

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Contact_Person: Geospatial Information Program

Contact_Address:

Address_Type: mailing and physical address

Address:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Address: 400 7th Street, S.W. Room 4117

City: Washington

State_or_Province: District of Columbia

Postal_Code: 20590

Country: USA

Contact_Voice_Telephone: 202-366-DATA

Contact_Facsimile_Telephone: 202-366-3640

Contact_Electronic_Mail_Address: answers@bts.gov

Resource_Description: National Transportation Atlas Databases 2006

Distribution_Liability: None

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ESRI Shapefile

Format_Version_Number: 2006

File_Decompression_Technique:

No compression applied. However, if using digital transfer online option, note the access instructions.

Transfer_Size: 1.865

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Access_Instructions:

Due to a significant reduction in resources, the NTAD is no longer available for download. The NTAD cdrom can be ordered from the online bookstore at www.bts.gov. If resources allow, download applications will be restored. When the applications become available, they will be found at www.bts.gov/programs/geographic_information_services.

Offline_Option:

Offline_Media: CD-ROM

Recording_Capacity:

Recording_Density: 650

Recording_Density_Units: megabytes

Recording_Format: ISO 9660

Fees: None

Ordering_Instructions:

Call 202-366-DATA, fax 202-366-3640, or E-mail (answers@bts.gov) RITA/BTS to request the National Transportation Atlas Databases (NTAD) 2006 CD-ROM. This and other RITA/BTS products may be ordered from the RITA/BTS Internet website: <http://www.bts.gov/programs/geographic_information_services/>

Technical_Prerequisites: Software that can process GIS files.

Available_Time_Period:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2006

Metadata_Reference_Information:

Metadata_Date: 20060327

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Contact_Person: Geospatial Information Program

Contact_Address:

Address_Type: mailing and physical address

Address:

Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)

Address: 400 7th Street, S.W. Room 4117

City: Washington

State_or_Province: District of Columbia

Postal_Code: 20590

Country: USA

Contact_Voice_Telephone: 202-366-DATA

Contact_Facsimile_Telephone: 202-366-3640

Contact_Electronic_Mail_Address: answers@bts.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Access_Constraints: None

Metadata_Use_Constraints: None

Metadata_Extensions:

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

Profile_Name: ESRI Metadata Profile