Identification_Information:
  Citation:
    Citation_Information:
      Originator: Vanderbilt Engineering Center for Transportation Operations and Research Vanderbilt University
      Originator: Bureau of Transportation Statistics (comp.)
      Publication_Date: 2002
      Title: National Waterway Network (line)
      Geospatial_Data_Presentation_Form: vector digital data
      Series_Information:
      Publication_Information:
        Publication_Place: New Orleans, LA
        Publisher: U.S. Army Corps of Engineers Navigation Data Center
      Online_Linkage: http://www.iwr.usace.army.mil/ndc/
      Larger_Work_Citation:
        Citation_Information:
          Originator: Bureau of Transportation Statistics (BTS)
          Publication_Date: 2002
          Title: National Transportation Atlas Databases (NTAD) 2002
          Edition: 2002
          Geospatial_Data_Presentation_Form: vector digital data
          Series_Information:
          Publication_Information:
            Publication_Place: Washington DC
            Publisher: Bureau of Transportation Statistics (BTS)
          Online_Linkage: http://www.bts.gov/gis/
  Description:
    Abstract: The National Waterway Network is a comprehensive network database of the nation's navigable waterways.  The data set covers the 48 contiguous States plus the District of Columbia, Hawaii, Alaska, Puerto Rico and water links between.  The nominal scale of the data set varies with the source material.  The majority of   the information is at 1:100,000 with larger scales used in harbor/bay/port areas and smaller scales used in open waters.
    Purpose: The National Waterway Network is a geographic database of navigable waterways in and around the United States, for analytical studies of waterway performance, for compiling commodity flow statistics, and for mapping purposes.
    Supplemental_Information: Links in the waterway network represent actual shipping lanes or serve as representative paths in open water where no defined shipping lanes exist.  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.
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1994
        Ending_Time: 2002
    Currentness_Reference: publication date
  Status:
    Progress: In work
    Maintenance_and_Update_Frequency: Continually
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -176.887500
      East_Bounding_Coordinate: 179.803407
      North_Bounding_Coordinate: 72.199720
      South_Bounding_Coordinate: -55.905212
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: network
      Theme_Keyword: transportation
      Theme_Keyword: waterway
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: United States
      Place_Keyword: Puerto Rico
      Place_Keyword: Gulf of Mexico
      Place_Keyword: Great Lakes
      Place_Keyword: Intracoastal waterway
      Place_Keyword: US
      Place_Keyword: USA
    Stratum:
      Stratum_Keyword_Thesaurus: None
      Stratum_Keyword: sea level
      Stratum_Keyword: ground
    Temporal:
      Temporal_Keyword_Thesaurus: None
      Temporal_Keyword: 2002
  Access_Constraints: None
  Use_Constraints: None
  Point_of_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Jay Wieriman
        Contact_Organization: Waterborne Commerce Statistics Center
      Contact_Address:
        Address_Type: mailing and physical address
        Address: P.O. Box 61280
        City: New Orleans
        State_or_Province: LA
        Postal_Code: 70161-1280
        Country: USA
      Contact_Voice_Telephone: 504-862-1402
      Contact_Facsimile_Telephone: 504-862-1423
      Contact_Electronic_Mail_Address: Jay.A.Wieriman@usace.army.mil
  Data_Set_Credit: 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.
  Native_Data_Set_Environment: Microsoft Windows NT Version 4.0 (Build 1381) Service Pack 6; ESRI ArcCatalog 8.1.0.642
  Cross_Reference:
    Citation_Information:
      Originator: Vanderbilt Engineering Center for Transportation Operations and Research Vanderbilt University
      Originator: Bureau of Transportation Statistics (comp.)
      Publication_Date: 2002
      Title: National Waterway Network (line)
      Geospatial_Data_Presentation_Form: vector digital data
      Publication_Information:
        Publication_Place: New Orleans, LA
        Publisher: U.S. Army Corps of Engineers Navigation Data Center
      Online_Linkage: http://www.iwr.usace.army.mil/ndc/
      Larger_Work_Citation:
        Citation_Information:
          Originator: Bureau of Transportation Statistics (BTS)
          Publication_Date: 2002
          Title: National Transportation Atlas Databases (NTAD) 2002
          Edition: 2002
          Geospatial_Data_Presentation_Form: vector digital data
          Publication_Information:
            Publication_Place: Washington DC
            Publisher: Bureau of Transportation Statistics (BTS)
          Online_Linkage: http://www.bts.gov/gis/
Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report: Attribute accuracy is tested by manual comparison of the source with hard copy printouts and/or symbolized display of digital line graphs on an interactive computer graphic system; selected attributes that cannot be visually verified on plots or on screen, are interactively queried and verified on screen.
    Quantitative_Attribute_Accuracy_Assessment:
      Attribute_Accuracy_Value: unknown
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        The "shape source" field in the link database, and the "node source" field in the node database indicate the data sources used to derive link and node placements.  The accuracy of each network element is correlated to the data source used to derive that element.  For example, links and nodes derived from 1:100,000 scale DLGs are more accurate than links and nodes derived from
        1:500,000 scale NOAA Navigational Charts. Links with unknown/missing sources are usually schematic representations of USACE links.  
                 Off-Shore:  NOAA Charts vary in scale.  Larger scale
                     charts were used in harbor/port areas, while smaller
                     scale charts were used in open water. For channels,
                     sea lanes, and Intracoastal Waterways, shape points
                     were placed as needed to ensure that link segments
                     fall within waterway boundaries.  
                 Inland:  Links digitized from 1:100,000 DLG files, or
                     large scale NOAA charts are the most accurate
                     representations.  Shape points were placed as needed
                     to ensure that link segments fall between waterway
                     shorelines.  Links derived from Corps milepoints
                     have shape points approximately one mile apart.  The
                     Corps milepoints were mainly derived from 1:24,000
                     and 1:100,000 scale maps.  Therefore, the shape
                     points derived from Corps milepoints are often as
                     accurate as shape points derived from 1:100,000 DLG
                     files.  However, line segments connecting the shape
                     points may not accurately represent the curvature of
                     the waterway.
      Quantitative_Horizontal_Positional_Accuracy_Assessment:
        Horizontal_Positional_Accuracy_Value: unknown
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Publication_Date: Unknown
          Title: USGS Digital Line Graph (DLG-3) Series
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Reston, Virginia
            Publisher: U.S. Geological Survey
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Publication_Date: 1980
          Title: National Atlas
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Reston, Virginia
            Publisher: U.S. Geological Survey
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Bureau of Census
          Publication_Date: 1990
          Title: TIGER/Line files
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Washington, DC
            Publisher: U.S. Bureau of Census
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: National Oceanographic and Atmospheric
          Publication_Date: Unknown
          Title: NOAA Navigation Charts
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Washington D.C.
            Publisher: National Oceanographic and Atmospheric Administration
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Publication_Date: Unknown
          Title: 1:100,000 Quad maps
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Reston, Virginia
            Publisher: U.S. Geological Survey
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Army Corps of Engineers
          Publication_Date: Unknown
          Title: Waterway Link Network
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: New Orleans, LA
            Publisher: U.S. Army Corps of Engineers
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Army Corps of Engineers
          Publication_Date: Unknown
          Title: USACE Mile Markers
          Geospatial_Data_Presentation_Form: tabular digital data
          Publication_Information:
            Publication_Place: New Orleans, LA
            Publisher: U.S. Army Corps of Engineers
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Oak Ridge National Laboratories
          Publication_Date: 1993
          Title: Inland Waterways
          Geospatial_Data_Presentation_Form: map
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Vanderbilt Engineering Center for Transportation Operations and Research
          Publication_Date: 1994
          Title: Vanderbilt Waterway Network
          Geospatial_Data_Presentation_Form: map
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Vanderbilt Engineering Center for  Transportation Operations and Research
          Publication_Date: 1994
          Title: National Waterway Network ver 2.0
          Geospatial_Data_Presentation_Form: map
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Vanderbilt Engineering Center for Transportation Operations and Research
          Publication_Date: 1997
          Title: National Waterway Network ver 2.0
          Geospatial_Data_Presentation_Form: vector digital data
          Publication_Information:
            Publication_Place: Washington, D.C.
            Publisher: Bureau of Transportation Statistics
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Vanderbilt Engineering Center for Transportation Operations and Research
          Publication_Date: 1998
          Title: National Waterway Network ver 2.3
          Geospatial_Data_Presentation_Form: vector digital data
          Publication_Information:
            Publication_Place: New Orleans, LA
            Publisher: US Army Corps of Engineers Waterborne Commerce Statistics Center
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2002
        Source_Currentness_Reference: publication date
    Process_Step:
      Process_Description: Extraction of spatial and type attributes for waterway features from NA, DLG and TIGER
      Source_Used_Citation_Abbreviation: dlg
      Source_Used_Citation_Abbreviation: na
      Source_Used_Citation_Abbreviation: TIGER
      Source_Used_Citation_Abbreviation: USACE
      Source_Used_Citation_Abbreviation: WLN
      Process_Date: 1994
      Source_Produced_Citation_Abbreviation: ORWW
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Bruce Peterson
            Contact_Organization: Oak Ridge National Laboratory
          Contact_Address:
            Address_Type: mailing and physical address
            Address: Oak Ridge National Laboratory
            City: Oak Ridge
            State_or_Province: TN
            Country: USA
          Contact_Voice_Telephone: 6155744419
          Contact_Facsimile_Telephone: 6155743895
          Contact_Electronic_Mail_Address: gto@stc10.ctd.ornl.gov
    Process_Step:
      Process_Description: Specification of offshore, coastal and Great Lake network nodes and links on NOAA, followed by direct digitization of specified nodes and links.
      Source_Used_Citation_Abbreviation: NOAA
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Mike Dimaiuta
            Contact_Organization: Vanderbilt Engineering Center for Transportation Operations and Research
          Contact_Address:
            Address_Type: mailing address
            Address: Box , Station B
            City: Nashville
            State_or_Province: TN
            Postal_Code: 37235
            Country: USA
          Contact_Voice_Telephone: 6153223683
          Contact_Facsimile_Telephone: 6153223365
          Contact_Electronic_Mail_Address: dimaiuma@vuse.vanderbilt.edu
    Process_Step:
      Process_Description:
        Merging of inland and offshore waterway networks.  A specialized program was written to merge the two networks.  In general, Vanderbilt node  locations were accepted as authoritative when both data sets had the same elements.  This meant moving an Oak Ridge link incident to that node.  If the link was classified geographically ocean or Great Lakes, and a  Vanderbilt link or chain existed with the same ID and endpoints, the Oak Ridge link was discarded, after transfer of Oak Ridge attributes.  If the Oak Ridge link was within 2 km of the new end nodes' location: and 1) if a duplicate Vanderbilt link existed with a higher         source code, it replace the Oak Ridge link, or 2) the Oak Ridge link was moved by a logistic adjustment to the new location.  (This causes modest disruption to the
        preponderance of the shape, yet assured that the angle of approach to the displaced end node location was preserved.)  If the link was functionally classed "deep draft" and a duplicate Vanderbilt link had an authoritative source code, the Oak Ridge link was  replaced.  Otherwise an additional shape point was added      at the end to snap to the new node location without disrupting the original link shape.  If the link had a  Vanderbilt duplicate with the same ID, the Oak Ridge      link was so flagged to be manually resolved.  The composite network was then cleaned manually, resolving all cases of still remaining duplicate links and         deciding case-by-case how to smooth or otherwise accommodate a highly displaced Oak Ridge shape into the  Vanderbilt digitized node location, using TIGER shorelines as a background.
      Source_Used_Citation_Abbreviation: TIGER
      Source_Used_Citation_Abbreviation: ORWW
      Source_Used_Citation_Abbreviation: VUWW
      Source_Produced_Citation_Abbreviation: WWAY10
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Bruce Peterson
            Contact_Organization: Oak Ridge National Laboratory
          Contact_Address:
            Address_Type: mailing and physical address
            Address: Oak Ridge National Laboratory
            City: Oak RIdge
            State_or_Province: TN
            Country: USA
          Contact_Voice_Telephone: 6155744419
          Contact_Facsimile_Telephone: 6155743895
          Contact_Electronic_Mail_Address: gto@stc10.ctd.ornl.gov
    Process_Step:
      Process_Description: Heads-up digitizing of WWAY10 to add shape points to inland waterways where straight links still existed.  Incorporation of comments from users (Vanderbilt, ORNL, and USACE Waterborne Commerce Statistics Center) of WWAY10 and error correction.
      Source_Used_Citation_Abbreviation: WWAY10
      Source_Used_Citation_Abbreviation: DLG
      Source_Produced_Citation_Abbreviation: WWAY11
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Mike Dimaiuta
            Contact_Organization: Vanderbilt Engineering Center for Transportation Operations and Research
          Contact_Address:
            Address_Type: mailing address
            Address: Box , Station B
            City: Nashville
            State_or_Province: TN
            Postal_Code: 37235
            Country: USA
          Contact_Voice_Telephone: 6153223683
          Contact_Facsimile_Telephone: 6153223365
          Contact_Electronic_Mail_Address: dimaiuma@vuse.vanderbilt.edu
    Process_Step:
      Process_Description: Upgrades to link shape and attribute data based on information from US Army Corps of Engineers CWIS projects as published in their digital projects notebook.  Includes the addition of new links, removal of unnecessary links/nodes, and splitting of links to more effectively relate the digital waterway network to the physical network as maintained by the Corps of Engineers.
      Source_Used_Citation_Abbreviation: DPN
      Source_Used_Citation_Abbreviation: WTWY20
      Process_Date: 1998
      Source_Produced_Citation_Abbreviation: WWAY21
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Jay Wieriman
            Contact_Organization: Waterborne Commerce Statistics Center
          Contact_Address:
            Address_Type: mailing address
            Address: Waterborne Commerce Statistics Center, Box 61280
            City: New Orleans
            State_or_Province: LA
            Postal_Code: 70161
            Country: USA
          Contact_Voice_Telephone: 504.862.1402
          Contact_Facsimile_Telephone: 504.862.1423
          Contact_Electronic_Mail_Address: Jay.A.Wieirman@usace.army.mil
    Process_Step:
      Process_Description: Upgrades to link shape and attribute data based on information from US Army Corps of Engineers CWIS projects as published in their digital projects notebook.  Includes the addition of new links, removal of unnecessary links/nodes, and splitting of links to more effectively relate the digital waterway network to the physical network as maintained by the Corps of Engineers.
      Source_Used_Citation_Abbreviation: DPN
      Source_Used_Citation_Abbreviation: WTWY21
      Process_Date: 1998
      Source_Produced_Citation_Abbreviation: WWAY22
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Jay Wieriman
            Contact_Organization: Waterborne Commerce Statistics Center
          Contact_Address:
            Address_Type: mailing and physical address
            Address: Waterborne Commerce Statistics Center, Box 61280
            City: New Orleans
            State_or_Province: LA
            Postal_Code: 70161
            Country: USA
          Contact_Voice_Telephone: 504.862.1402
          Contact_Facsimile_Telephone: 504.862.1423
          Contact_Electronic_Mail_Address: Jay.A.Wieirman@usace.army.mil
Spatial_Data_Organization_Information:
  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: String
      Point_and_Vector_Object_Count: 6897
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: North American Datum of 1983
      Ellipsoid_Name: Geodetic Reference System 80
      Semi-major_Axis: 6378137.000000
      Denominator_of_Flattening_Ratio: 298.257222
Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: waterway
      Entity_Type_Definition: National Waterway Network (line)
      Entity_Type_Definition_Source: 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 and BTS
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Polyline
          Enumerated_Domain_Value_Definition: Polylinear shapes as defined by ArcView
          Enumerated_Domain_Value_Definition_Source: ArcView Internal Attribute
        Unrepresentable_Domain: Coordinates defining the features.
    Attribute:
      Attribute_Label: RECTYPE
      Attribute_Definition: One character which defines the type of file from a data set.
      Attribute_Definition: One character which defines the type of file from a data set.
      Attribute_Definition_Source: BTS
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: L
          Enumerated_Domain_Value_Definition: line
          Enumerated_Domain_Value_Definition_Source: BTS
    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.  In this release the value is "03".
      Attribute_Definition_Source: BTS
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 00
          Range_Domain_Maximum: 99
    Attribute:
      Attribute_Label: REVISION
      Attribute_Definition: The REVISION is a 2-digit number that will be incremented individually for each record whenever a change is made to one of its fields.  The initial value for all records will be set to "01".
      Attribute_Definition_Source: BTS
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 00
          Range_Domain_Maximum: 99
    Attribute:
      Attribute_Label: MODDATE
      Attribute_Definition: The MODDATE (or modification date)indicates when each record in the database was last changed.  As changes are made to a record, the modification date is entered in the format 'mmddyyy'.
      Attribute_Definition_Source: BTS
      Attribute_Domain_Values:
        Unrepresentable_Domain: date values (The MODDATE values will be date values indicating the last time a record was edited or modified.)
    Attribute:
      Attribute_Label: LINKID
      Attribute_Definition: Unique link identification number
      Attribute_Definition_Source: BTS
      Attribute_Domain_Values:
        Unrepresentable_Domain: numeric values.  (Unique link identification number)
    Attribute:
      Attribute_Label: FEATUREID
      Attribute_Definition: Attribute identification code
      Attribute_Definition_Source: BTS
      Attribute_Domain_Values:
        Unrepresentable_Domain: numeric values.  (Unique link identification number)
    Attribute:
      Attribute_Label: ANODE
      Attribute_Definition: Identifies a record (NODEID) in the node file that corresponds to the starting position of the link
      Attribute_Definition_Source: BTS
      Attribute_Domain_Values:
        Unrepresentable_Domain: Calculated
    Attribute:
      Attribute_Label: BNODE
      Attribute_Definition: Identifies a record (NODEID) in the node file that corresponds to the ending position of the link
      Attribute_Definition_Source: BTS
      Attribute_Domain_Values:
        Unrepresentable_Domain: Calculated
    Attribute:
      Attribute_Label: DESCRIP
      Attribute_Definition: USGS Name or identification for the link
      Attribute_Definition_Source: USACE
      Attribute_Domain_Values:
        Unrepresentable_Domain: free text
    Attribute:
      Attribute_Label: STFIPS1
      Attribute_Definition: Primary State FIPS Code
      Attribute_Definition_Source: NIST
      Attribute_Domain_Values:
        Codeset_Domain:
          Codeset_Name: Federal Information Processing Standard- FIPS Pub 6-4
          Codeset_Source: National Institute for Standards and Technology (NIST)
    Attribute:
      Attribute_Label: STFIPS2
      Attribute_Definition: Secondary State FIPS Code
      Attribute_Definition_Source: NIST
      Attribute_Domain_Values:
        Codeset_Domain:
          Codeset_Name: Federal Information Processing Standard- FIPS Pub 6-4
          Codeset_Source: National Institute for Standards and Technology (NIST)
    Attribute:
      Attribute_Label: AMILE
      Attribute_Definition: Milepost at the ANODE, inland Corps links, only
      Attribute_Definition_Source: USACE
      Attribute_Domain_Values:
        Unrepresentable_Domain: measured value
    Attribute:
      Attribute_Label: BMILE
      Attribute_Definition: Milepost at the BNODE, inland Corps links, only
      Attribute_Definition_Source: USACE
      Attribute_Domain_Values:
        Unrepresentable_Domain: measured value
    Attribute:
      Attribute_Label: LENGTH
      Attribute_Definition: Line length, in miles
      Attribute_Definition_Source: USACE
      Attribute_Domain_Values:
        Unrepresentable_Domain: measured value
    Attribute:
      Attribute_Label: LENGTH_SRC
      Attribute_Definition: Indication of how the length was calculated
      Attribute_Definition_Source: USACE
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: V
          Enumerated_Domain_Value_Definition: Vanderbilt; length was calculated using GIS software
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: M
          Enumerated_Domain_Value_Definition: Milepoints; length was calculated by subtracting 'B' milepoint from 'A' milepoint
          Enumerated_Domain_Value_Definition_Source: USACE
    Attribute:
      Attribute_Label: SHAPE_SRC
      Attribute_Definition: Indicates the data source used for each link
      Attribute_Definition_Source: BTS
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: CM
          Enumerated_Domain_Value_Definition: Corps Milepoints
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: DD
          Enumerated_Domain_Value_Definition: Digitized from 1:100K DLGs (CD-ROM)
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: DN
          Enumerated_Domain_Value_Definition: Digitized from NOAA Charts
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: DQ
          Enumerated_Domain_Value_Definition: Digitized from 1:100K USGS Quads
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: J
          Enumerated_Domain_Value_Definition: Rough shape (guessed)
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: JR
          Enumerated_Domain_Value_Definition: Original shape modified by ORNL
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: JV
          Enumerated_Domain_Value_Definition: Original shape modified by Vanderbilt
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: M
          Enumerated_Domain_Value_Definition: Missing / Unknown
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: NA
          Enumerated_Domain_Value_Definition: Digitized from 1:2M National Atlas Points
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: RR
          Enumerated_Domain_Value_Definition: ORNL link modified by ORNL
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: RV
          Enumerated_Domain_Value_Definition: ORNL link modified by Vanderbilt
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: VR
          Enumerated_Domain_Value_Definition: Vanderbilt link modified by ORNL
          Enumerated_Domain_Value_Definition_Source: USACE
    Attribute:
      Attribute_Label: LINKTYPE
      Attribute_Definition: Indicates the originator of the link or the type of feature represented by the link
      Attribute_Definition_Source: USACE
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: CORPS
          Enumerated_Domain_Value_Definition: Corps of Engineers original link
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: CWIS
          Enumerated_Domain_Value_Definition: Corps of Engineers civil works improvement addition
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: ORNL
          Enumerated_Domain_Value_Definition: Oak Ridge National Laboratory
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: VANDERBUILT
          Enumerated_Domain_Value_Definition: Vanderbilt University
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: LOCK
          Enumerated_Domain_Value_Definition: Corps of Engineers lock
          Enumerated_Domain_Value_Definition_Source: USACE
    Attribute:
      Attribute_Label: CTRL_DEPTH
      Attribute_Definition: Control depth of link, in feet,Corps links only
      Attribute_Definition_Source: USACE
      Attribute_Domain_Values:
        Unrepresentable_Domain: measured value
    Attribute:
      Attribute_Label: WATERWAY
      Attribute_Definition: 4-digit waterway code from Corps Master_port_waterway
      Attribute_Definition_Source: USACE
      Attribute_Domain_Values:
        Codeset_Domain:
          Codeset_Name: Corps Master_port_waterway
          Codeset_Source: USACE
    Attribute:
      Attribute_Label: GEO_CLASS
      Attribute_Definition: Geographic Class
      Attribute_Definition_Source: USACE
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: G
          Enumerated_Domain_Value_Definition: Great Lakes
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: O
          Enumerated_Domain_Value_Definition: Ocean / Offshore
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: I
          Enumerated_Domain_Value_Definition: Inland
          Enumerated_Domain_Value_Definition_Source: USACE
    Attribute:
      Attribute_Label: FUNC_CLASS
      Attribute_Definition: Functional Class
      Attribute_Definition_Source: USACE
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: N
          Enumerated_Domain_Value_Definition: no traffic, non-navigable
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: S
          Enumerated_Domain_Value_Definition: shallow draft (i.e., no deep draft ocean vessels)
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: D
          Enumerated_Domain_Value_Definition: deep draft
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: B
          Enumerated_Domain_Value_Definition: Both
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: U
          Enumerated_Domain_Value_Definition: special vessels only (fishing, pleasure craft, etc; normally no freight traffic)
          Enumerated_Domain_Value_Definition_Source: USACE
    Attribute:
      Attribute_Label: WTWY_TYPE
      Attribute_Definition: Waterway Type
      Attribute_Definition_Source: USACE
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 1
          Enumerated_Domain_Value_Definition: Harbor (including harbor channels), Bay
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: 2
          Enumerated_Domain_Value_Definition: Intracoastal Waterway
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: 3
          Enumerated_Domain_Value_Definition: Sealane
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: 4
          Enumerated_Domain_Value_Definition: Sealane with separation zone
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: 5
          Enumerated_Domain_Value_Definition: Open water
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: 6
          Enumerated_Domain_Value_Definition: River, creek, thoroughfare, lake
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: 7
          Enumerated_Domain_Value_Definition: Estuary
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: 8
          Enumerated_Domain_Value_Definition: Channel (not including harbor channels)
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: 9
          Enumerated_Domain_Value_Definition: Canal
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: 10
          Enumerated_Domain_Value_Definition: Great Lakes direct link (major ports)
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: 11
          Enumerated_Domain_Value_Definition: Great Lakes indirect link
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: 12
          Enumerated_Domain_Value_Definition: Corps of Engineers Lock
          Enumerated_Domain_Value_Definition_Source: USACE
    Attribute:
      Attribute_Label: CHART_ID
      Attribute_Definition: 4 or 5 digit NOAA chart number or 15 character 1:100K USGS Quad Map ID
      Attribute_Definition_Source: NOAA
      Attribute_Domain_Values:
        Codeset_Domain:
          Codeset_Name: Official NOAA Chart Index
          Codeset_Source: NOAA
    Attribute:
      Attribute_Label: NUM_PAIRS
      Attribute_Definition: Number of coordinate pairs that make up the link
      Attribute_Definition_Source: BTS
      Attribute_Domain_Values:
        Unrepresentable_Domain: calculated value
    Attribute:
      Attribute_Label: WHO_MOD
      Attribute_Definition: Composite code designating what organization modified the link
      Attribute_Definition_Source: USACE
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: first character:  V
          Enumerated_Domain_Value_Definition: Vanderbilt addition
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: first character:  R
          Enumerated_Domain_Value_Definition: Oak Ridge addition
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: first character:  J
          Enumerated_Domain_Value_Definition: guessed
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: first character:  H
          Enumerated_Domain_Value_Definition: screen digitization from DLGs or TIGER
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: second character: 1
          Enumerated_Domain_Value_Definition: 94 May
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: second character: 2
          Enumerated_Domain_Value_Definition: 94 June
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: second character: 3
          Enumerated_Domain_Value_Definition: 94 July blank  after July 1994
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: third character:  R
          Enumerated_Domain_Value_Definition: attributes modified by ORNL
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: third character:  A
          Enumerated_Domain_Value_Definition: attributes modified by Vanderbilt
          Enumerated_Domain_Value_Definition_Source: USACE
    Attribute:
      Attribute_Label: HEADING
      Attribute_Definition: Compass Direction
      Attribute_Definition_Source: USACE
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: N
          Enumerated_Domain_Value_Definition: North
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: S
          Enumerated_Domain_Value_Definition: South
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: E
          Enumerated_Domain_Value_Definition: East
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: W
          Enumerated_Domain_Value_Definition: West
          Enumerated_Domain_Value_Definition_Source: USACE
    Attribute:
      Attribute_Label: NON_US
      Attribute_Definition: Abbreviation for non US areas
      Attribute_Definition_Source: USACE
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: AC
          Enumerated_Domain_Value_Definition: Arctic Ocean
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: AT
          Enumerated_Domain_Value_Definition: Atlantic Ocean
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: BS
          Enumerated_Domain_Value_Definition: Bering Sea
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: CB
          Enumerated_Domain_Value_Definition: Caribbean Sea
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: CD
          Enumerated_Domain_Value_Definition: Canada
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: GM
          Enumerated_Domain_Value_Definition: Gulf of Mexico
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: PC
          Enumerated_Domain_Value_Definition: Pacific Ocean
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: PM
          Enumerated_Domain_Value_Definition: Panama
          Enumerated_Domain_Value_Definition_Source: USACE
        Enumerated_Domain:
          Enumerated_Domain_Value: XX
          Enumerated_Domain_Value_Definition: Unidentified Area
          Enumerated_Domain_Value_Definition_Source: USACE
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: Bureau of Transportation Statistics (BTS)
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 400 Seventh Street, S.W.
        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 (NTAD) 2002
  Distribution_Liability: None
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: ESRI Shapefile
        Format_Version_Number: 2002
        File_Decompression_Technique: No compression applied.  However, if using digital transfer online option, note access instructions.
        Transfer_Size: 3.045
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://www.bts.gov/gis/
          Access_Instructions: Anyone with access to the World Wide Web may connect to the BTS server.  To access a specific database, go to the address listed above in the Network Resource Name.  The visitor can create a package of the dataset for download in a .zip format (i.e. MS-DOS zip archive).  This archived package is stored in a temporary file that can then be copied to the visitor's home directory.
        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 (NTAD) 2002 CD-ROM.  This and other BTS products may be ordered from the BTS Internet website (http://www.bts.gov/gis/).
  Standard_Order_Process:
    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).
  Technical_Prerequisites: Software that can process GIS files.
  Available_Time_Period:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 2002
Metadata_Reference_Information:
  Metadata_Date: May 2002
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: Bureau of Tranportation Statistics (BTS)
      Contact_Address:
        Address_Type: mailing and physical address
        Address: Bureau of Transportation Statistics (BTS)
        Address: 400 Seventh Street, S.W.
        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
