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  <titleInfo>
    <title>Superdistricts with Populations, San Francisco Bay Area, California, 2000</title>
  </titleInfo>
  <name type="corporate">
    <namePart>California. Metropolitan Transportation Commission</namePart>
    <role>
      <roleTerm type="text" authority="marcrelator">creator</roleTerm>
    </role>
  </name>
  <typeOfResource>cartographic</typeOfResource>
  <typeOfResource>software, multimedia</typeOfResource>
  <genre authority="lcgft" valueURI="http://id.loc.gov/authorities/genreForms/gf2011026297">Geospatial data</genre>
  <genre authority="rdacontent" valueURI="http://rdvocab.info/termList/RDAContentType/1001">cartographic dataset</genre>
  <originInfo>
    <publisher>California. Metropolitan Transportation Commission</publisher>
    <place>
      <placeTerm type="text">Oakland, California, US</placeTerm>
    </place>
    <dateIssued encoding="w3cdtf" keyDate="yes">2002</dateIssued>
    <dateValid encoding="w3cdtf">2000</dateValid>
  </originInfo>
  <language>
    <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
  </language>
  <physicalDescription>
    <form>Shapefile</form>
    <extent>0.591</extent>
    <digitalOrigin>born digital</digitalOrigin>
  </physicalDescription>
  <subject>
    <cartographics>
      <scale>Scale not given.</scale>
      <projection>Custom projection</projection>
      <coordinates>(W 123°32ʹ4ʺ--W 121°9ʹ51ʺ/N 38°51ʹ57ʺ--N 36°53ʹ21ʺ)</coordinates>
    </cartographics>
  </subject>
  <abstract displayLabel="Abstract" lang="eng">This polygon shapefile contains superdistrict boundaries and population statistics created by the Metropolitan Transportation Comission (MTC) using Census 2000 data. Superdistricts are used in the analysis of sub-county level demographic and travel forecasts. MTC maintains a set of regional travel analysis zones for use in MTC planning studies. These travel analysis zones (TAZs) are typically small area neighborhoods or communities that serve as the smallest geographic basis for travel demand model forecasting systems. From time to time, MTC updates the regional travel analysis zone system to reflect changes in decennial census geography, changes in computing capability, and forecasting needs for particular corridor studies. In addition to regional TAZs and counties, MTC supports an intermediate geographic scale, "superdistricts," for analysis and reporting purposes. There are 34 superdistricts in the nine-county Bay Area. This layer is part of the Bay Area Metropolitan Transportation Commission (MTC) GIS Maps and Data collection.</abstract>
  <abstract displayLabel="Purpose" lang="eng">This dataset is intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analysis with other spatial data.</abstract>
  <note displayLabel="Preferred citation" lang="eng">California, Metropolitan Transportation Commission. (2002). Superdistricts with Populations, San Francisco Bay Area, California, 2000. MTC. Available at: http://purl.stanford.edu/sn432sp4756.</note>
  <subject>
    <topic authority="lcsh" authorityURI="http://id.loc.gov/authorities/subjects.html" lang="eng">Population</topic>
  </subject>
  <subject>
    <topic authority="lcsh" authorityURI="http://id.loc.gov/authorities/subjects.html" lang="eng">Transportation demand management</topic>
  </subject>
  <subject>
    <topic authority="lcsh" authorityURI="http://id.loc.gov/authorities/subjects.html" lang="eng">Traffic estimation</topic>
  </subject>
  <subject>
    <geographic lang="eng">San Francisco Bay Area (Calif.)</geographic>
  </subject>
  <subject>
    <geographic lang="eng" valueURI="http://sws.geonames.org/5391959/" authority="geonames" authorityURI="http://www.geonames.org/ontology#">San Francisco (Calif.)</geographic>
  </subject>
  <subject>
    <geographic lang="eng" valueURI="http://sws.geonames.org/5339268/" authority="geonames" authorityURI="http://www.geonames.org/ontology#">Contra Costa County (Calif.)</geographic>
  </subject>
  <subject>
    <geographic lang="eng" valueURI="http://sws.geonames.org/5376101/" authority="geonames" authorityURI="http://www.geonames.org/ontology#">Napa County (Calif.)</geographic>
  </subject>
  <subject>
    <geographic lang="eng" valueURI="http://sws.geonames.org/5392427/" authority="geonames" authorityURI="http://www.geonames.org/ontology#">San Mateo County (Calif.)</geographic>
  </subject>
  <subject>
    <geographic lang="eng" valueURI="http://sws.geonames.org/5392427/" authority="geonames" authorityURI="http://www.geonames.org/ontology#">San Mateo County (Calif.)</geographic>
  </subject>
  <subject>
    <geographic lang="eng" valueURI="http://sws.geonames.org/5396987/" authority="geonames" authorityURI="http://www.geonames.org/ontology#">Solano County (Calif.)</geographic>
  </subject>
  <subject>
    <geographic lang="eng" valueURI="http://sws.geonames.org/5397100/" authority="geonames" authorityURI="http://www.geonames.org/ontology#">Sonoma County (Calif.)</geographic>
  </subject>
  <subject>
    <geographic lang="eng" valueURI="http://sws.geonames.org/5370468/" authority="geonames" authorityURI="http://www.geonames.org/ontology#">Marin County (Calif.)</geographic>
  </subject>
  <subject>
    <geographic lang="eng" valueURI="http://sws.geonames.org/5322745/" authority="geonames" authorityURI="http://www.geonames.org/ontology#">Alameda County (Calif.)</geographic>
  </subject>
  <subject>
    <temporal encoding="w3cdtf">2000</temporal>
  </subject>
  <subject>
    <topic authority="ISO19115TopicCategory" authorityURI="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_TopicCategoryCode" valueURI="boundaries">Boundaries</topic>
  </subject>
  <subject>
    <topic authority="ISO19115TopicCategory" authorityURI="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_TopicCategoryCode" valueURI="society">Society</topic>
  </subject>
  <subject>
    <topic authority="ISO19115TopicCategory" authorityURI="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_TopicCategoryCode" valueURI="transportation">Transportation</topic>
  </subject>
  <subject>
    <topic authority="ISO19115TopicCategory" authorityURI="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_TopicCategoryCode" valueURI="planningCadastre">Planning and Cadastral</topic>
  </subject>
  <location>
    <url>http://purl.stanford.edu/sn432sp4756</url>
  </location>
  <recordInfo>
    <recordContentSource>Stanford</recordContentSource>
    <recordIdentifier>edu.stanford.purl:sn432sp4756</recordIdentifier>
    <recordOrigin>This record was translated from ISO 19139 to MODS v.3 using an xsl transformation.</recordOrigin>
    <languageOfCataloging>
      <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
    </languageOfCataloging>
  </recordInfo>
  <extension displayLabel="geo">
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      <rdf:Description rdf:about="http://purl.stanford.edu/sn432sp4756">
        <dc:format>application/x-esri-shapefile; format=Shapefile</dc:format>
        <dc:type>Dataset#Polygon</dc:type>
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          <gml:Envelope gml:srsName="EPSG:4326">
            <gml:lowerCorner>-123.53367 36.894155</gml:lowerCorner>
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  <subject authority="EPSG" valueURI="http://opengis.net/def/crs/EPSG/0/4326" displayLabel="WGS84">
    <cartographics>
      <scale>Scale not given.</scale>
      <projection>EPSG::4326</projection>
      <coordinates>W 123°32ʹ1ʺ--W 121°12ʹ29ʺ/N 38°51ʹ51ʺ--N 36°53ʹ39ʺ</coordinates>
    </cartographics>
  </subject>
  <note displayLabel="WGS84 Cartographics">This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.</note>
  <relatedItem type="host">
    <titleInfo>
      <title>Metropolitan Transportation Commission GIS Maps &amp; Data</title>
    </titleInfo>
    <location>
      <url>https://purl.stanford.edu/bq589tv8583</url>
    </location>
    <typeOfResource collection="yes"/>
  </relatedItem>
  <accessCondition type="useAndReproduction">This item is in the public domain.  There are no restrictions on use.</accessCondition>
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