<?xml version="1.0" encoding="UTF-8"?><rdf:RDF xmlns:dcplus="http://arcgis.com/metadata/dcplus/1.0/" xmlns:dct="http://purl.org/dc/terms/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:gml="http://www.opengis.net/gml/3.2/" xmlns:rdfs="http://www.w3.org/1999/02/22-rdf-schema#" xmlns:vcard="http://www.w3.org/2006/vcard/ns#">
    <rdf:Description>
        <dct:source>https://www.arcgis.com</dct:source>
        <dct:title>National Waterway Network Nodes</dct:title>
        <dct:abstract>The National Waterway Network (NWN) is a geographic database of navigable waterways and channels in and around the United States, for analytical studies of navigation performance, for compiling commodity flow statistics, and for mapping purposes.</dct:abstract>
        <dct:description>The National Waterway Network Nodes dataset is periodically updated by the United States Army Corp of Engineers (USACE) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The National Waterway Network (NWN) is a geographic database of navigable waterways and channels in and around the United States, for analytical studies of navigation performance, for compiling commodity flow statistics, and for mapping purposes. The NWN is comprised of a link database and a node database. Links are line strings, which consist of beginning and end points (nodes) with intermediate vertices (shape points). Links represent either actual shipping lanes (i.e., channels, Intracoastal Waterways, sea lanes, rivers) or serve as representative paths in open water (where no defined shipping paths exist). Nodes may represent physical entities such as river confluence's, ports/facilities, and intermodal terminals, USACE nodes, or may be inserted for analytical purposes (i.e., to facilitate routing). A data dictionary, or other source of attribute information, is accessible at https://doi.org/10.21949/1529054</dct:description>
        <dct:subject>transportation</dct:subject>
        <dct:subject>USA</dct:subject>
        <dct:subject>National</dct:subject>
        <dct:subject>NTAD</dct:subject>
        <dct:subject>National Transportation Atlas Database</dct:subject>
        <dct:subject>National</dct:subject>
        <dct:subject>Transportation</dct:subject>
        <dct:subject>Atlas</dct:subject>
        <dct:subject>Database</dct:subject>
        <dct:subject>vector</dct:subject>
        <dct:subject>point</dct:subject>
        <dct:subject>Marine</dct:subject>
        <dct:subject>Maritime</dct:subject>
        <dct:subject>Inland</dct:subject>
        <dct:subject>Water</dct:subject>
        <dct:subject>Waterway</dct:subject>
        <dct:subject>Navigable</dct:subject>
        <dct:subject>Nodes</dct:subject>
        <dct:subject>inland waters</dct:subject>
        <dct:subject>oceans</dct:subject>
        <dct:subject>geospatial</dct:subject>
        <dct:subject>Transportation</dct:subject>
        <dct:creator rdf:parseType="Resource">
            <vcard:Individual rdf:parseType="Resource">
                <vcard:fn>United States Army Corp of Engineers (USACE)</vcard:fn>
            </vcard:Individual>
        </dct:creator>
        <dct:created rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2003-07-01</dct:created>
        <dct:contributor>The National Waterway Network was created on behalf of the Bureau of Transportation Statistics, the U.S. Army Corps of Engineers, the U.S. Bureau of Census, and the U.S. Coast Guard by Vanderbilt University and Oak Ridge National Laboratory. Additional agencies with input into network development include Volpe National Transportation Systems Center, Maritime Administration, Military Traffic Management Command, Tennessee Valley Authority, U.S. Environmental Protection Agency, and the Federal Railroad Administration.</dct:contributor>
        <dct:rights>Nodes may represent physical entities such as river confluences, ports/facilities, and intermodal terminals, US Army Corps of Engineers (USACE nodes), or may be inserted for analytical purposes.Approximately 224 USACE ports are geo-coded in the node database.</dct:rights>
        <dct:spatial rdf:parseType="Resource">
            <gml:Envelope rdf:parseType="Resource">
                <gml:srsName>urn:ogc:def:crs:EPSG:4326</gml:srsName>
                <gml:lowerCorner rdf:parseType="Literal">-179.312134803331 -53.0000201812036</gml:lowerCorner>
                <gml:upperCorner rdf:parseType="Literal">179.135177854289 72.1997322374615</gml:upperCorner>
            </gml:Envelope>
        </dct:spatial>
        <dcplus:scaleRange rdf:parseType="Literal">
            <dcplus:minScale>500000</dcplus:minScale>
            <dcplus:maxScale>5000</dcplus:maxScale>
        </dcplus:scaleRange>
        <dcplus:maintFreq>Irregular</dcplus:maintFreq>
        <dcplus:contentStatus>On Going</dcplus:contentStatus>
    </rdf:Description>
</rdf:RDF>
