﻿<metadata>
  <idinfo>
    <citation>
      <citeinfo>
        <origin>Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)</origin>
        <origin>US Bureau of the Census (BOC)</origin>
        <pubdate>20000101</pubdate>
        <title>boc_uza</title>
        <geoform>vector digital data</geoform>
        <pubinfo>
          <pubplace>Suitland, MD</pubplace>
          <publish>US Bureau of the Census (BOC)</publish>
        </pubinfo>
        <onlink>http://www.bts.gov/programs/geographic_information_services/</onlink>
        <onlink>http://www.bts.gov/programs/geographic_information_services/</onlink>
        <lworkcit>
          <citeinfo>
            <origin>Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)</origin>
            <pubdate>20120724</pubdate>
            <pubtime>000000</pubtime>
            <title>National Transportation Atlas Databases (NTAD) 2012</title>
            <geoform>vector digital data</geoform>
            <pubinfo>
              <pubplace>Washington DC</pubplace>
              <publish>Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)</publish>
            </pubinfo>
            <onlink>http://www.bts.gov/programs/geographic_information_services/</onlink>
          </citeinfo>
        </lworkcit>
      </citeinfo>
    </citation>
    <descript>
      <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.</abstract>
      <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.</purpose>
    </descript>
    <timeperd>
      <timeinfo>
        <sngdate>
          <caldate>20120101</caldate>
        </sngdate>
      </timeinfo>
      <current>publication date</current>
    </timeperd>
    <status>
      <progress>Complete</progress>
      <update>Irregular</update>
    </status>
    <spdom>
      <bounding>
        <westbc>-158.231956</westbc>
        <eastbc>145.794619</eastbc>
        <northbc>64.920865</northbc>
        <southbc>13.337161</southbc>
      </bounding>
    </spdom>
    <keywords>
      <theme>
        <themekt>polygon</themekt>
        <themekey>Territory</themekey>
        <themekey>Polygons</themekey>
        <themekey>Urbanized Area</themekey>
        <themekey>Urban</themekey>
      </theme>
      <place>
        <placekt>None</placekt>
        <placekey>United States</placekey>
        <placekey>USA</placekey>
        <placekey>US Territories</placekey>
        <placekey>US</placekey>
      </place>
      <place>
        <placekt>None</placekt>
        <placekey>United State of America</placekey>
      </place>
      <stratum>
        <stratkt>None</stratkt>
        <stratkey>ground</stratkey>
      </stratum>
      <temporal>
        <tempkt>None</tempkt>
        <tempkey>2011</tempkey>
        <tempkey>2010</tempkey>
        <tempkey>2008</tempkey>
        <tempkey>2012</tempkey>
        <tempkey>2009</tempkey>
        <tempkey>2007</tempkey>
        <tempkey>2000</tempkey>
      </temporal>
      <theme>
        <themekt>ISO 19115 Topic Categories</themekt>
        <themekey>boundaries</themekey>
      </theme>
    </keywords>
    <accconst>None</accconst>
    <useconst>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) 2012 would be appreciated in products derived from these data.</useconst>
    <ptcontac>
      <cntinfo>
        <cntorgp>
          <cntorg>Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)</cntorg>
          <cntper>Office of Geospatial Information Systems</cntper>
        </cntorgp>
        <cntaddr>
          <addrtype>mailing and physical</addrtype>
          <address>1200 New Jersey Ave., SE</address>
          <city>Washington</city>
          <state>District of Columbia</state>
          <postal>20590</postal>
          <country>US</country>
        </cntaddr>
        <cntvoice>202-366-DATA</cntvoice>
        <cntemail>answers@bts.gov</cntemail>
      </cntinfo>
    </ptcontac>
    <datacred>The data was acquired from the US Bureau of the Census.</datacred>
    <secinfo>
      <secclass>Unclassified</secclass>
    </secinfo>
    <native>Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.3.3600</native>
    <crossref>
      <citeinfo>
        <origin>Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)</origin>
        <pubdate>20120724</pubdate>
        <pubtime>000000</pubtime>
        <title>National Transportation Atlas Databases (NTAD) 2012</title>
        <geoform>vector digital data</geoform>
        <pubinfo>
          <pubplace>Suitland, MD</pubplace>
          <publish>US Bureau of the Census (BOC)</publish>
        </pubinfo>
        <onlink>http://www.bts.gov/programs/geographic_information_services/</onlink>
      </citeinfo>
    </crossref>
  </idinfo>
  <dataqual>
    <attracc>
      <attraccr>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.</attraccr>
      <qattracc>
        <attraccv>unknown</attraccv>
        <attracce>None</attracce>
      </qattracc>
    </attracc>
    <logic>All node-link and polygon topological relationships are created and verified using ESRI Arc/Info.</logic>
    <complete>A total of 465 distinct Urbanized areas are identified in this data set.</complete>
    <posacc>
      <horizpa>
        <horizpar>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.</horizpar>
        <qhorizpa>
          <horizpav>1:</horizpav>
          <horizpae>1: = Unknown</horizpae>
        </qhorizpa>
      </horizpa>
    </posacc>
    <lineage>
      <srcinfo>
        <srccite>
          <citeinfo>
            <origin>Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)</origin>
            <origin>US Bureau of the Census (BOC)</origin>
            <pubdate>19900101</pubdate>
            <title>Bureau of the Census Urbanized Area Boundaries</title>
            <edition>2000</edition>
            <geoform>vector digital data</geoform>
            <pubinfo>
              <pubplace>Suitland, MD</pubplace>
              <publish>US Bureau of the Census (BOC)</publish>
            </pubinfo>
            <onlink>http://www.bts.gov/programs/geographic_information_services/</onlink>
          </citeinfo>
        </srccite>
        <srcscale>100</srcscale>
        <typesrc>CD-ROM</typesrc>
        <srctime>
          <timeinfo>
            <sngdate>
              <caldate>19900101</caldate>
            </sngdate>
          </timeinfo>
          <srccurr>publication date</srccurr>
        </srctime>
        <srccitea>BOC</srccitea>
        <srccontr>All data contained in the file.</srccontr>
      </srcinfo>
      <procstep>
        <procdesc>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.</procdesc>
        <procdate>20040301</procdate>
        <proccont>
          <cntinfo>
            <cntorgp>
              <cntorg>Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)</cntorg>
              <cntper>Office of Geospatial Information Systems</cntper>
            </cntorgp>
            <cntaddr>
              <addrtype>mailing and physical</addrtype>
              <address>1200 New Jersey Ave., SE</address>
              <city>Washington</city>
              <state>DC</state>
              <postal>20590</postal>
              <country>US</country>
            </cntaddr>
            <cntvoice>202-366-DATA</cntvoice>
          </cntinfo>
        </proccont>
      </procstep>
    </lineage>
  </dataqual>
  <spdoinfo>
    <direct>Vector</direct>
    <ptvctinf>
      <sdtsterm>
        <sdtstype>GT-polygon composed of chains</sdtstype>
        <ptvctcnt>465</ptvctcnt>
      </sdtsterm>
    </ptvctinf>
  </spdoinfo>
  <spref>
    <horizsys>
      <geograph>
        <latres>8.9831528411952133e-009</latres>
        <longres>8.9831528411952133e-009</longres>
        <geogunit>Decimal Degrees</geogunit>
      </geograph>
      <geodetic>
        <horizdn>D WGS 1984</horizdn>
        <ellips>WGS 1984</ellips>
        <semiaxis>6378137.0</semiaxis>
        <denflat>298.257223563</denflat>
      </geodetic>
    </horizsys>
  </spref>
  <eainfo>
    <detailed>
      <enttyp>
        <enttypl>boc_uza</enttypl>
        <enttypd>Bureau of the Census Urbanized Area Boundaries</enttypd>
        <enttypds>Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)</enttypds>
      </enttyp>
      <attr>
        <attrlabl>FID</attrlabl>
        <attrdef>Internal feature number.</attrdef>
        <attrdefs>ESRI</attrdefs>
        <attrdomv>
          <udom>Sequential unique whole numbers that are automatically generated.</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Shape</attrlabl>
        <attrdef>Feature geometry.</attrdef>
        <attrdefs>ESRI</attrdefs>
        <attrdomv>
          <edom>
            <edomv>Polyline (or Polygon | or Point)</edomv>
            <edomvd>Polylinear (or Polygon | or Point) Shapes as defined by ArcView</edomvd>
            <edomvds>ArcView Internal Attribute</edomvds>
          </edom>
          <udom>Coordinates defining the features.</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>NAME</attrlabl>
        <attrdef>Name of the Urbanized Area</attrdef>
        <attrdefs>BOC</attrdefs>
        <attrdomv>
          <codesetd>
            <codesetn>1990 Urbanized Area Codes and Names</codesetn>
            <codesets>Bureau of Census</codesets>
          </codesetd>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>ST</attrlabl>
        <attrdef>State names that fall within that polygon</attrdef>
        <attrdefs>RITA/BTS</attrdefs>
        <attrdomv>
          <udom>Multiple states are represented</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>LSAD_</attrlabl>
        <attrdef>Census identifying it is an Urbanized Area</attrdef>
        <attrdefs>RITA/BTS</attrdefs>
        <attrdomv>
          <edom>
            <edomv>Urbanized Area</edomv>
            <edomvd>Census Identification for Urban Areas</edomvd>
            <edomvds>BOC</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>UA_</attrlabl>
        <attrdef>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.</attrdef>
        <attrdefs>BOC</attrdefs>
        <attrdomv>
          <udom>Unique numbering convention for the specify polygon</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>CNTRLAT</attrlabl>
        <attrdef>Centroid latitude value for the polygon expressed as a signed integer with six implied decimal places.</attrdef>
        <attrdefs>RITA/BTS</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>90 degrees North</rdommin>
            <rdommax>90 degrees South</rdommax>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>CNTRLONG</attrlabl>
        <attrdef>Centroid longitude value for the polygon expressed as a signed integer with six implied decimal places.</attrdef>
        <attrdefs>RITA/BTS</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>180 degrees East</rdommin>
            <rdommax>180 degrees West</rdommax>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>VERSION</attrlabl>
        <attrdef>The VERSION is a 2-digit number that will be incremented for all records in the database whenever a new release is distributed.</attrdef>
        <attrdefs>Assigned</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>00</rdommin>
            <rdommax>99</rdommax>
          </rdom>
        </attrdomv>
      </attr>
    </detailed>
  </eainfo>
  <distinfo>
    <distrib>
      <cntinfo>
        <cntorgp>
          <cntorg>Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)</cntorg>
          <cntper>Office of Geospatial Information Systems</cntper>
        </cntorgp>
        <cntaddr>
          <addrtype>mailing and physical</addrtype>
          <address>1200 New Jersey Ave., SE</address>
          <city>Washington</city>
          <state>District of Columbia</state>
          <postal>20590</postal>
          <country>US</country>
        </cntaddr>
        <cntvoice>202-366-DATA</cntvoice>
        <cntemail>answers@bts.gov</cntemail>
      </cntinfo>
    </distrib>
    <resdesc>National Transportation Atlas Databases (NTAD) 2012</resdesc>
    <distliab>None</distliab>
    <stdorder>
      <digform>
        <digtinfo>
          <formname>ESRI Shapefile</formname>
          <formvern>10.0</formvern>
          <filedec>No compression applied. However, if using digital transfer online option, note the access instructions.</filedec>
          <transize>1.865</transize>
        </digtinfo>
        <digtopt>
          <offoptn>
            <offmedia>dvd</offmedia>
            <reccap>
              <recden>650</recden>
              <recdenu>megabytes</recdenu>
            </reccap>
            <recfmt>ISO 9660</recfmt>
          </offoptn>
        </digtopt>
      </digform>
      <fees>None</fees>
      <ordering>Call (202-366-DATA), or E-mail (answers@bts.gov) RITA/BTS to request the National Transportation Atlas Databases (NTAD) 2012 DVD. The NTAD DVD can be ordered from the online bookstore at www.bts.gov. Individual datasets from the NTAD can also be downloaded from the Office of Geospatial Information Systems website at http://www.bts.gov/programs/geographic_information_services/.</ordering>
    </stdorder>
    <availabl>
      <timeinfo>
        <sngdate>
          <caldate>20120101</caldate>
        </sngdate>
      </timeinfo>
    </availabl>
  </distinfo>
  <metainfo>
    <metd>20120508</metd>
    <metc>
      <cntinfo>
        <cntorgp>
          <cntorg>Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)</cntorg>
          <cntper>Office of Geospatial nformation Systems</cntper>
        </cntorgp>
        <cntaddr>
          <addrtype>mailing and physical</addrtype>
          <address>1200 New Jersey Ave., SE</address>
          <city>Washington</city>
          <state>District of Columbia</state>
          <postal>20590</postal>
          <country>US</country>
        </cntaddr>
        <cntvoice>202-366-DATA</cntvoice>
        <cntemail>answers@bts.gov</cntemail>
      </cntinfo>
    </metc>
    <metstdn>FGDC Content Standard for Digital Geospatial Metadata</metstdn>
    <metstdv>FGDC-STD-001-1998</metstdv>
    <mettc>local time</mettc>
  </metainfo>
</metadata>