Identification_Information:
Citation:
Citation_Information:
Originator: Bureau of Transportation Statistics (comp.)
Publication_Date: 20000000
Title: Bureau of the Census Urbanized Area Boundaries
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: National Transportaion Atlas
Issue_Identification: 2001
Publication_Information:
Publication_Place: Washington, DC
Publisher: Bureau of Transportation Statistics
Online_Linkage: http://www.bts.gov/gis/ntatlas/
Larger_Work_Citation:
Citation_Information:
Originator: Bureau of Transportation Statistics
Publication_Date: 2001
Title: National Transportation Atlas
Publication_Information:
Publication_Place: Washington, DC
Publisher: Bureau of Transportation Statistics
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.
Purpose:
The data provide users with information about the
locations, names, and size urban areas. The data are
used primarily for national planning applications.
Supplemental_Information: None
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19950000
Currentness_Reference: Publication Date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Unknown
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -158.081251
East_Bounding_Coordinate: -65.778774
North_Bounding_Coordinate: 61.462711
South_Bounding_Coordinate: 17.883140
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: area
Theme_Keyword: background
Theme_Keyword: polygon
Theme_Keyword: boundary
Theme_Keyword: urban area
Theme_Keyword: population
Theme_Keyword: city
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: United States
Place_Keyword: Puerto Rico
Place_Keyword: District of Columbia
Access_Constraints: None
Use_Constraints:
Acknowledgment of the Bureau of Transportation Statistics
National Transportation Atlas Database would be appreciated
in products derived from these data.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Bureau of Transportation
Statistics
Contact_Address:
Address_Type: mailing and physical address
Address: 400 Seventh St., SW
City: Washington D.C.
State_or_Province: District of Columbia
Postal_Code: 20590
Country: United States of America
Contact_Voice_Telephone: 1 202 366 DATA
Contact_Facsimile_Telephone: 1 202 366 3640
Contact_Electronic_Mail_Address: URL:mailto:ntad@bts.gov
Data_Set_Credit:
The data were acquired from the US Bureau of the
Census.
Native_Data_Set_Environment: ESRI, ArcView 3.2 shapefiles
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The Bureau of Census supplied the attributes.
Logical_Consistency_Report:
All node-link and polygon topological relationships are
created and verified using ARC/INFO.
Completeness_Report:
405 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.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: US Bureau of the Census(comp.)
Publication_Date: 19920000
Title: Urbanized Areas
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Washington, DC
Publisher: Bureau of the Census
Online_Linkage: http://www.Census.gov
Source_Scale_Denominator: 100,000
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19920000
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: BOC
Source_Contribution: All data ciontianed in the file.
Process_Step:
Process_Description:
After completing topological and attribute verification
using ARC/INFO the data was extracted and reformatted
into the BTS ACSII format. The ASCII data were then
reformattted as an ESRI Shape.
Process_Date: 20010403
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Area chain
Point_and_Vector_Object_Count: 3656 chains
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000464
Longitude_Resolution: 0.000464
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.400000
Denominator_of_Flattening_Ratio: 294.978698
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: boc_uza.shp
Entity_Type_Definition: ESRI Shapefile
Entity_Type_Definition_Source: Bereau of Transportation
Statistics
Attribute:
Attribute_Label: SHAPE
Attribute_Definition:
The SHAPE attribute is a data attribute inherent to the
ESRI shapefile format. It defines the vector data
as a point, polyline, or polygon. For further
information concerning the definition of SHAPE,
consult ESRI documentation.
Attribute_Definition_Source: ESRI and BTS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: "polygon"
Enumerated_Domain_Value_Definition: A "Polygon" is
an area feature comprised of points and line
segments.
Enumerated_Domain_Value_Definition_Source: Assigned
Attribute:
Attribute_Label: POLYID
Attribute_Definition: Unique identifier for each polygon
Attribute_Definition_Source: Assigned
Attribute_Domain_Values:
Unrepresentable_Domain: Domain consist of all integers
Attribute:
Attribute_Label: VERSION
Attribute_Definition: Two character string representing the
number of the file version.
Attribute_Definition_Source: Assigned
Attribute_Domain_Values:
Domain: Range
Range_Domain:
Range_Domain_Minimum: '00'
Range_Domain_Maximum: '99'
Attribute:
Attribute_Label: REVISION
Attribute_Definition: Two character string representing the
record revision number
Attribute_Definition_Source: Assigned
Attribute_Domain_Values:
Domain: Range
Range_Domain:
Range_Domain_Minimum: '00'
Range_Domain_Maximum: '99'
Attribute:
Attribute_Label: MODDATE
Attribute_Definition: Record Modification Date
Attribute_Definition_Source: Assigned
Attribute_Domain_Values:
Domain: Range
Range_Domain:
Range_Domain_Minimum: Creation Date of
Dataset
Range_Domain_Maximum: End of time
Attribute:
Attribute_Label: FEATUREID
Attribute_Definition: Urbanized Area Code
Attribute_Definition_Source: BOC
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: 1990 Urbanized Area Codes and Names
Codeset_Source: Bereau of Census
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: BTS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 180 degrees east
Range_Domain_Maximum: 180 degrees west
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: BTS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 90 degrees North
Range_Domain_Maximum: 90 degrees South
Attribute:
Attribute_Label: DESCRIP
Attribute_Definition: Name of the Urbanized Area
Attribute_Definition_Source: BOC
Attribute_Domain_Values:
Unrepresentable_Domain: Domain consists of all possible
place names.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: BTS Product Distribution Center
Contact_Address:
Address_Type: mailing and physical address
Address: 400 Seventh Street, SW
City: Washington
State_or_Province: District of Columbia
Postal_Code: 20590
Contact_Voice_Telephone: 1 202 366 DATA
Contact_Facsimile_Telephone: 1 202 366 3640
Contact_Electronic_Mail_Address: answers@bts.gov
Resource_Description:
National Transportation Atlas Databases 2001
Distribution_Liability: None
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ESRI Shapefile
Format_Information_Content:
File_Decompression_Technique: No compression applied.
However, if using digital transfer online
option, note access instructions.
Transfer_Size: 1881 KB
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: www.bts.gov/gis/
Access_Instructions: Anyone with access to the Internet
may connect to the BTS web server. To access a
specific data set, go to the web address listed
above in the Network Resource Name. The BTS
server allows visitors to create an archive
package for download in one of three common
formats:
.zip - an MS-DOS zip archive;
.tgz - a gzip-ed unix tar archive; and
.tar - a unix tar archive.
This archived package is stored in a temporary
file which can then be copied to the visitor's
home directory.
Online_Computer_and_Operating_System: Sun Ultra running
Solaris 2.6 operating system.
Digital_Transfer_Option:
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) BTS to request the National
Transportation Atlas Databases 2001 CD-ROM. This and
other BTS products may be ordered from the BTS Internet
site (www.bts.gov).
Metadata_Reference_Information:
Metadata_Date: 19950830
Metadata_Review Date: 200105
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Bureau of Transportation Statistics
Contact_Address:
Address_Type: mailing address
Address: 400 Seventh Street, SW
City: Washington
State_or_Province: DC
Postal_Code: 20590
Contact_Voice_Telephone: 1 202 366 DATA
Contact_Facsimile_Telephone: 1 202 366 3640
Contact_Electronic_Mail_Address: answers@bts.gov
Metadata_Standard_Name:
FGDC Content Standards for Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998