GeoDataset name:  National Highway Planning Network
U.S. Major Road Net is the National Highway Planning Network version 2.1 published by the Bureau of Transportation Statistics as part of the National Transportation Atlas Database.  The National Highway Planning Network is a comprehensive database of the nations principal arterial highway system and other National Highway System routes.  The nominal scale of the data set is 1:100,000 with an maximal positional error of 80 meters.  This data set includes the major highway road segments of the original dataset and is suitable for routing, but only a subset of the attributes.  The entire dataset can be found on the Network Analyst Cdrom.
  Majrdnet -- U.S. Major Road Net
46,296 roads, 10 descriptive fields. Identifies interstate and U.S. highways and some additional transportation network routes.
Fields:
Descrip -- The descriptive name for the  road segment.(String
Sign1 -- A composite field that identifies the type, sign route numbers, and a qualifier. (String)
type:  (blank) - not signed,  I - Interstate,  U - US Route,  S - State Route,  O - Off-Interstate Business Marker,  C - County Route,  T - Township,  M - Municipal,  P - Parkway or Forest Route Marker, N - None of the above qualifier:  (blank) - No qualifier, not signed, or not applicable,  A - Alternate Route,  B - Business Route,  P - Bypass,  S - Spur,  L - Loop,  F - Proposed (future),  D - Temporary (detour),  T - Truck Route,  N - None of the above
Sign2 -- A composite field for the secondary identifier including the type, sign route numbers, and a qualifier. (String)
Sign3 -- A composite field for a third identifier including the type, sign route numbers, and a qualifier. (String)
Miles -- The length of the road segment in miles.(Numeric)
Km -- The length of the road segment in kilometers.(Numeric)
Toll -- Links which have one or more toll features.(Numeric)
	0 - Not a Toll Road,  1 - Toll Road
Lanes -- Number of through lanes in both directions. (Numeric)
Median -- Describes the type of median of the road feature.(String)
0 - Unknown
1 - Divided Highway
2 - Undivided Highway
Func_class -- Assigned functional class description. (String)
U.S. Major Road Net - Technical Description
GeoDataset name:  National Highway Planning Network
Shapefile name:  Majrdnet.shp
Path: ESRI Data and Maps 1 (CD) \usagen
GeoDataset type: Major Road Net is an ESRI shapefile with line features.
GeoDataset lineage: The METADATA for this GeoDataset as provided by the Bureau of Transportation Statistics.
National Highway Planning Network Metadata
IDENTIFICATION INFORMATION
  Data Set Identity:  National Highway Planning Network
  Identification Code:   Version 2.1
Larger Work Citation
     Originator: Bureau of Transportation Statistics
     Publication Date: 1997
     Title: National Transportation Atlas Databases
     Publication Information
       Publication Place:  Washington, DC
       Publisher:   Bureau of Transportation Statistics
  Data Set Description:  The National Highway Planning Network is a comprehensive network database of the nations principal arterial highway system and other National Highway System routes. The data set covers the 48 contiguous States plus the District of Columbia, Alaska, Hawaii, and Puerto Rico. The nominal scale of the data set is 1:100,000 with an maximal positional error of 80 meters.
Keywords
  Theme:
    Theme Keyword Thesaurus:  None
    Theme Keyword:  Network
    Theme Keyword:  Highways
    Theme Keyword:  Interstate
  Place
    Place Keyword:  United States
  Bounding Coordinates:
    West Bounding Coordinate: -179.743881
    East Bounding Coordinate:  179.459091
    North Bounding Coordinate:  71.316994
    South Bounding Coordinate:  17.934389
  Data Set Citation:  "National Highway Planning Network Version 2 Machine Readable Data Files" prepared by the Federal Highway Administration, Office of Environment and Planning (HEP-11), Washington DC, 1994
  Data Set Credit::  The NHPN Version 2 database was created on behalf of FHWA by members of the Geographic Information Systems Laboratory, Pellissippi Research Institute, The University of Tennessee, Knoxville.
  Use Restrictions:  The NHPN Version 2 database, or any portion thereof, can be freely distributed as long as this metadata entry is included with each distribution. The original metadata entry cannot be modified or deleted from any data transfer.
Contact Person Primary
  Contact Person: Mr. Mark Bradford
  Contact Organization: Office of Environment and Planning, HEP-10
  Contact Organization: The Federal Highway Administration
  Contact Address
     Address Type:  mailing address
     Address:  400 Seventh Street, SW
     City: Washington
     State or Province: DC
     Postal Code: 20590
  Contact Voice Telephone: (202) 366-6810
  Contact Facsimile Telephone: (202) 493-2198
  Contact Instructions:  Between hours of 9 am and 3 p.m. Eastern Standard Time.
DATA QUALITY INFORMATION
  Beginning Date of Information Content:  1992
  Ending Date of Information Content:  1996
  Thematic Quality:
    Thematic Accuracy Report::  The accuracy of the fields MILES, KM, FCLASS, SIGN1, NHS, and STRAHNET from the description section of the link table is consistent with State supplied information for the years 1992 and 1993. All other attributes in the description of the link table are unverified.
  Logical Consistency Report:  All node and link topological relationships and uniqueness of entity Ids are verified by computer algorithm.
  Completeness Report:  The complete urban principal arterial system and arterials in rural areas as reported to FHWA by December 1992 are inventoried in the database.  Functional classes below arterial vary on a State by State basis.
  Positional Quality:
    Horizontal Positional Quality:
      Horizontal Positional Accuracy Report:  The elements of the NHPN have been conflated to the 1:100,000 DLG-3 data set which maintains a nominal accuracy of at least 80 meters. Where new roads have been added which are not in the DLG-3 database link alignments have been digitized or converted from digital sources acquired from State DOTs with a map scale of at least 1:100,000.
SPATIAL DATA ORGANIZATION INFORMATION
  Direct Spatial Reference Method:  Vector
    Point and Vector Object Information:
      Vector Object Information:
        SDTS Vector Object Type:  "Node, network"
        Vector Object Count:  90,415 nodes
        SDTS Vector Object Type:  "Network Chain, non-planar graph"
        Vector Object Count:  125,302 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
STATUS INFORMATION
  Data Set Status:  Available
  Release Date:  19940915
  Maintenance And Update Frequency:  Annual
LINEAGE
  Source Information:
    Source Citation:  "National Highway Planning Network V1.1, Bruce Peterson, Oak Ridge National Laboratory, 1992"
    Source Citation Abbreviation:  NHPN V1
    Beginning Date of Source Currentness:  19920701
    Source Contribution:  Non-verified attributes for rural highways.
  Source Information:
    Source Citation:  USGS Digital Line Graph (DLG-3) Series
    Source Citation Abbreviation:  DLG-3
    Beginning Date of Source Currentness: 1978
    Source Contribution:  Road alignments for rural and urban highways.
  Source Information:
    Source Citation:  State supplied digital and map data
    Source Citation Abbreviation:  State Data
    Beginning Date of Source Currentness: 19921231
    Source Contribution:  Alignments and attributes for urban highways. Sign route and function class attributes for principal arterial system.
  Process Step:
    Process Description:  Conflation of NHPN V1 to DLG-3 road alignments using R-MATCH software developed by the Geographic Information Systems Group, University of Tennessee.
    Source Used Citation Abbreviation:  NHPN V1
    Source Used Citation Abbreviation:  DLG-3
    Process Date:  19930701
  Process Step:
    Process Description:  Digitizing and conversion of state supplied digital and map data. Line work geodetically controlled to match DLG-3 line work.
    Source Used Citation Abbreviation:  State Data
    Source Used Citation Abbreviation:  DLG-3
    Process Date:  19931231
  Process Step:
    Process Description:  Integration of conflated version of NHPN V1 and assimilated State Data into a comprehensive topologically integrated network database. States edgematched and NHS attributes verified.
    Process Date:  19940915
  Process Step:
     Process Description:  Integration of supplemental State Data into the NHPN V2.  NHS attributes verified.
     Process Date:  19970115
               ENTITY AND ATTRIBUTE INFORMATION
  Entity And Attribute Overview:  A full discussion of the file structures and data schema for NHPN V2.1 is available in the NHPN V2.1 document
  Entity And Attribute Detail Citation:  Ray, Julian J, and Mark Bradford, (1997) 'National Highway Planning Network V2.1: Data Schema and File Structures', Report prepared for the Federal Highway Administration, HEP-10.
Entity_Type:
    Entity_Type_label:  NHPN.LNK
      Entity_Type_Definition: Line Attribute Table
      Entity_Type_Definition_Source:
Field  Field     Field  Field  Beg End Field
Number Name      Type   Length Pos Pos Description
 1     RECTYPE    C       1     1   1  Record Type: always 'L'
 2     VERSION    C       2     2   3  File version number
 3     REVISION   C       2     4   5  Record revision number
 4     MODDATE    I       8     6  13  Record modification date
 5     LINKID     I      10    14  23  Unique sequential line identification
 6     FEATURID   I      10    24  33  Unique line identification
 7     ANODE      I      10    34  43  Node identification for the beginning node of the line
 8     BNODE      I      10    44  54  Node identification for the ending node of the line
 9     DESCRIPT   C      35    55  88  Name or identification for the line feature
10     STFIPS1    C       2    89  90  Primary State FIPS Code
11     STFIPS2    C       2    91  92  Secondary State FIPS Code
Attribute:
  Attribute_Label:  RECTYPE
  Attribute_Definition: One character which defines the type of file from a data set.
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  character
          Enumerated_Domain:
            Enumerated_Domain_Value:  L
Attribute:
  Attribute_Label:  VERSION
  Attribute_Definition:  File version number
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  Positive integer
Attribute:
  Attribute_Label:  REVISION
  Attribute_Definition:  Record revision number
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  Positive integer
Attribute:
  Attribute_Label:  MODDATE
  Attribute_Definition:  Record Modification Date
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  Positive integer
Attribute:
  Attribute_Label: LINKID
  Attribute_Definition: Unique line identification number
  Attribute_Definition_Source: Assigned
    Attribute_Domain_Values: Positive integer
Attribute:
  Attribute_Label:  FEATURID
  Attribute_Definition: Unique line identifier
  Attribute_Definition_Source: Assigned
    Attribute_Domain_Values: Positive integer
Attribute:
  Attribute_Label: ANODE
  Attribute_Definition:  The record in the node file (NODEID) that corresponds to the starting position of the link
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values: Positive integer
Attribute:
  Attribute_Label: BNODE
  Attribute_Definition: The record in the node file (NODEID) that corresponds to the ending position of the link
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values: Positive integer
Attribute:
  Attribute_Label: DESCRIPT
  Attribute_Definition:  Name or identification for the link
  Attribute_Definition_Source:
    Attribute_Domain_Values: character
Attribute:
  Attribute_Label:  STFIPS1
  Attribute_Definition:  Two digit State FIPS Code
  Attribute_Definition_Source:  FIPS Pub 6-4
    Attribute_Domain_Values:  Character
         Codeset_Domain:
              Codeset_Name: Federal Information Processing Standard
Attribute:
  Attribute_Label: STFIPS2
  Attribute_Definition: Two digit State FIPS Code
  Attribute_Definition_Source:  FIPS Pub 6-4
    Attribute_Domain_Values:  Character
         Codeset_Domain:
              Codeset_Name: Federal Information Processing Standard
Entity_Type:
    Entity_Type_label:  NHPN.NOD
      Entity_Type_Definition: Node Attribute Table
      Entity_Type_Definition_Source:
Field  Field     Field  Field   Beg  End  Field
Number Name      Type   Length  Pos  Pos  Description
 1     RECTYPE    C       1      1    1   Record Type: always 'N'
 2     VERSION    C       2      2    3   File version number
 3     REVISION   C       2      4    5   Record revision number
 4     MODDATE    I       8      6   13   Record modification date
 5     NODEID     I      10     14   23   Unique sequential node identification
 6     FEATURID   I      10     24   33   Unique node identification
 7     LONGITUD   I      10     34   43   Longitude (6 implied decimal places)
 8     LATITUDE   I      10     44   53   Latitude (6 implied decimal places)
 9     DESCRIPT   C      35     54   88   Name or identification of the node
10     STFIPS     C       2     89   90   State FIPS Code
Attribute:
  Attribute_Label:  RECTYPE
  Attribute_Definition: One character which defines the type of file from a data set.
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  character
          Enumerated_Domain:
            Enumerated_Domain_Value:  N
Attribute:
  Attribute_Label:  VERSION
  Attribute_Definition:  File version number
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  Positive integer
Attribute:
  Attribute_Label:  REVISION
  Attribute_Definition:  Record revision number
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  Positive integer
Attribute:
  Attribute_Label:  MODDATE
  Attribute_Definition:  Record Modification Date
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  Positive integer
Attribute:
  Attribute_Label: NODEID
  Attribute_Definition: Unique sequential node identification
  Attribute_Definition_Source: Assigned
    Attribute_Domain_Values: Positive integer
Attribute:
  Attribute_Label:  FEATURID
  Attribute_Definition: unique node identification number
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values: Positive integer
Attribute:
  Attribute_Label: LONGITUD
  Attribute_Definition: The longitude of the node expressed as a signed integer with six implied decimal places
  Attribute_Definition_Source:
    Attribute_Domain_Values: integer
Attribute:
  Attribute_Label: LATITUDE
  Attribute_Definition: The latitude of the node expressed as a signed integer with six implied decimal places
  Attribute_Definition_Source:
    Attribute_Domain_Values: integer
Attribute:
  Attribute_Label: DESCRIPT
  Attribute_Definition: Node name or identification
  Attribute_Definition_Source:
    Attribute_Domain_Values:  character
Attribute:
  Attribute_Label: STFIPS
  Attribute_Definition: Two digit State FIPS Code
  Attribute_Definition_Source:  FIPS Pub 6-4
    Attribute_Domain_Values:  Character
         Codeset_Domain:
              Codeset_Name: Federal Information Processing Standard
Entity_Type:
    Entity_Type_label:  NHPN.GEO
      Entity_Type_Definition:
      Entity_Type_Definition_Source:
Field  Field    Field  Field  Beg  End  Field
Number Name     Type   Length Pos  Pos  Description
 1     RECTYPE   C       1     1    1   Record Type: always 'G'
 2     VERSION   C       2     2    3   File version number
 3     REVISION  C       2     4    5   Record revision number
 4     MODDATE   I       8     6   13   Record modification date
 5     LINKID    I      10    14   23   Unique sequential line identification
 6     blank            20    24   43   blank
 7     NPOINT    I       3    44   46   Number of coordinate pairs that define the line - the coordinate pairs then follow - up to four coordinate pairs per line, field length ten each per longitude and latitude with six implied decimal places
Attribute:
  Attribute_Label:  RECTYPE
  Attribute_Definition: One character which defines the type of file from a data set.
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  character
          Enumerated_Domain:
            Enumerated_Domain_Value:  G
Attribute:
  Attribute_Label:  VERSION
  Attribute_Definition:  File version number
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  Positive integer
Attribute:
  Attribute_Label:  REVISION
  Attribute_Definition:  Record revision number
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  Positive integer
Attribute:
  Attribute_Label:  MODDATE
  Attribute_Definition:  Record Modification Date
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  Positive integer
Attribute:
  Attribute_Label: LINKID
  Attribute_Definition: Unique line identification number
  Attribute_Definition_Source: Assigned
    Attribute_Domain_Values: Positive integer
Attribute:
  Attribute_Label:  blank
  Attribute_Definition:
  Attribute_Definition_Source:
    Attribute_Domain_Values:
Attribute:
  Attribute_Label: NPOINT
  Attribute_Definition: The number of coordinate pairs that define the linear feature.  The coordinate pairs then follow - up to four coordinate pairs per line, field length ten each per longitude and latitude with six implied decimal places
  Attribute_Definition_Source:  calculated
    Attribute_Domain_Values: integer
Attribute:
  Attribute_Label: LONGITUD
  Attribute_Definition:  The longitude of the node expressed as a signed integer with six implied decimal places
  Attribute_Definition_Source:
    Attribute_Domain_Values: integer
Attribute:
  Attribute_Label: LATITUDE
  Attribute_Definition: The latitude of the node expressed as a signed integer with six implied decimal places
  Attribute_Definition_Source:
    Attribute_Domain_Values: integer
Entity_Type:
    Entity_Type_label: NHPN.TL1
                       NHPN_TL1.DBF
    Entity_Type_Definition: Line Attribute Table
      Entity_Type_Definition_Source: Federal Highway Administration, Office of Environment and planning, HEP-11Field
Field   Field  Field  Beg  End   Field
Number Name    Type   Width  Pos  Pos  Description
 1     RECTYPE  C      1      1    1   Record Type: Always 'T'
 2     VERSION  C      2      2    3   File version number
 3     REVISION C      2      4    5   Record revision number
 4     MODDATE  I      8      6   13   Record Modification Date
 5     FEATURID I     10     14   23   Unique identifier
 6     LINKID   I     10     24   33   Sequential Unique Identifier
 7     SOURCE   C      1     34   34   Original source of the coordinate information
 8     STFIPS   C      2     35   36   State FIPS Code
 9     CTFIPS   C      3     37   39   County FIPS Code
10     ORNL-ID  I      8     40   47   Oakridge National Lab assigned link ID
11     LGURB    I      3     48   50   Adjusted Urbanized Area
12     SMURB    I      5     51   55   Adjusted Small Urban Area
13     SIGN1    C      6     56   61   Composite field:
                       1     56   56   SIGNT1
                       4     57   60   SIGNN1
                       1     61   61   SIGNQ1
14     SIGN2    C      6     62   67   Composite field:
                       1     62   62   SIGNT2
                       4     63   66   SIGNN2
                       1     67   67   SIGNQ2
15     SIGN3    C      6     68   73   Composite field:
                       1     68   68   SIGNT3
                       4     69   72   SIGNN3
                       1     73   73   SIGNQ3
16     MILES    N      6     74   79   Measurement in miles
17     KM       N      6     80   85   Measurement in kilometers
18     FACTYPE  I      1     86   86   Permissible flow of traffic
19     TOLL     I      1     87   87   Links which have one or more toll features
20     LANES    I      2     88   89   Number of through lanes in both directions
21     ACONTROL I      1     90   90   Access control to the link from adjoining roads
22     MEDIAN   I      1     91   91   Type of median
23     SURFACE  I      1     92   92   Predominant surface type
24     FCLASS   I      2     93   94   Assigned functional class
25     ACLASS   C      1     95   95   Administrative class
26     RU_CODE  I      1     96   96   Rural/Urban classification
27     STATUS   I      1     97   97   Describes availability to through traffic
28     NHS      I      1     98   98   Special subnetwork for the Proposed National Highway System
29     STRAHNET I      1     99   99   Special subnetwork for the Strategic Highway Corridor Network
30     TRANSAM  I      1    100  100   Special subnetwork for theTrans-America corridor
Attribute:
  Attribute_Label:  RECTYPE
  Attribute_Definition: One character which defines the type of file from a data set.
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  character
          Enumerated_Domain:
            Enumerated_Domain_Value:  T
Attribute:
  Attribute_Label:  VERSION
  Attribute_Definition:  File version number
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  Positive integer
Attribute:
  Attribute_Label:  REVISION
  Attribute_Definition:  Record revision number
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  Positive integer
Attribute:
  Attribute_Label:  MODDATE
  Attribute_Definition:  Record Modification Date
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  Positive integer
Attribute:
  Attribute_Label: FEATURID
  Attribute_Definition: Unique line identifier
  Attribute_Definition_Source: Assigned
    Attribute_Domain_Values: Positive integer
Attribute:
  Attribute_Label: LINKID
  Attribute_Definition: Unique line identification number
  Attribute_Definition_Source: Assigned
    Attribute_Domain_Values: Positive integer
Attribute:
  Attribute_Label:  SOURCE
  Attribute_Definition: The Source Flag is used to identify the original source of the coordinate information.
  Attribute_Definition_Source: Assigned
    Attribute_Domain_Values:
          Enumerated Domain:
             Enumerated_Domain_Value:
                     S - State Supplied Digital Data
                     U - USGS Digital Line Graphs
                     T - US Census Tiger/Line files
                     D - Digitized from State supplied maps
                     M - Military Supplied data
Attribute:
  Attribute_Label:  STFIPS
  Attribute_Definition: : Two digit State FIPS Code
  Attribute_Definition_Source: FIPS Pub 6-4
    Attribute_Domain_Values: character
      Codeset_Domain:
    Codeset_Name: Federal Information Processing Standard
Attribute:
  Attribute_Label:  CTFIPS
  Attribute_Definition: Threee digit County FIPS Code
  Attribute_Definition_Source: FIPS Pub 6-4
    Attribute_Domain_Values: character
      Codeset_Domain:
    Codeset_Name: Federal Information Processing Standard
Attribute:
  Attribute_Label:  ORNL-ID
  Attribute_Definition: Oakridge National Laboratory Assigned Identifier
  Attribute_Definition_Source:  Assigned - Oakridge National Laboratory
    Attribute_Domain_Values: Positive integer
Attribute:
  Attribute_Label:  LGURB
  Attribute_Definition: Large Urbanized Area
  Attribute_Definition_Source:  US Census
    Attribute_Domain_Values: Positive integer
           Range Domain:
             Range_Domain_Value: 0 - 999
Attribute:
  Attribute_Label:  SMURB
  Attribute_Definition: Adjusted Small Urban Area
  Attribute_Definition_Source:
    Attribute_Domain_Values: Positive integer
           Range Domain:
             Range_Domain_Value: 0 - 99999
Attribute:
  Attribute_Label:  SIGN1
  Attribute_Definition: Primary Sign Route
  Attribute_Definition_Source:  FHWA
    Attribute_Domain_Values:  character
          Enumerated Domain:
             Enumerated_Domain_Value: Composite field of SIGNT1, SIGNN1, and SIGNQ1
     Note: The SIGNT1 field is followed by a left-adjusted sign route number (SIGNN1) for the route. The SIGNR field can contain alpha characters to allow for actual sign route numbers such as route A1A in Florida. Using HPMS standards, an optional directional indicator (N, S, E, W) can also be used as part of the SIGNN1 field. The Sign Route Number is followed by an optional Sign Route Qualifier Record (SIGNQ1) which is used to qualify the sign route description
             Subfield:  SIGNT1
  Attribute_Definition:
          Enumerated Domain:
                Enumerated_Domain_Value:
                  (blank) - not signed
                        I - Interstate
                        U - US Route
                        S - State Route
                        O - Off-Interstate Business Marker
                        C - County Route
                        T - Township
                        M - Municipal
                        P - Parkway or Forest Route Marker
                        N - None of the above
             Subield: SIGNN1
  Attribute_Definition:
          Enumerated Domain:
                Enumerated_Domain_Value:  A-Z, 0-9
             Subield:  SIGNQ1
  Attribute_Definition:
          Enumerated Domain:
                Enumerated_Domain_Value:
                  (blank) - No qualifier, not signed, or not applicable
                        A - Alternate Route
                        B - Business Route
                        P - Bypass
                        S - Spur
                        L - Loop
                        F - Proposed (future)
                        D - Temporary (detour)
                        T - Truck Route
                        N - None of the above
Attribute:
  Attribute_Label: SIGN2
  Attribute_Definition: Alternate Sign Route
  Attribute_Definition_Source: FHWA
    Attribute_Domain_Values: character
          Enumerated Domain:
            Enumerated Domain value: Composite Field containing SIGNT2, SIGNN2, and SIGNQ2
             Subfield:  SIGNT2
  Attribute_Definition:
          Enumerated Domain:
                Enumerated_Domain_Value:
                  (blank) - not signed
                        I - Interstate
                        U - US Route
                        S - State Route
                        O - Off-Interstate Business Marker
                        C - County Route
                        T - Township
                        M - Municipal
                        P - Parkway or Forest Route Marker
                        N - None of the above
             Subield: SIGNN2
  Attribute_Definition:
          Enumerated Domain:
                Enumerated_Domain_Value:  A-Z, 0-9
             Subield:  SIGNQ2
  Attribute_Definition:
          Enumerated Domain:
                Enumerated_Domain_Value:
                  (blank) - No qualifier, not signed, or not applicable
                        A - Alternate Route
                        B - Business Route
                        P - Bypass
                        S - Spur
                        L - Loop
                        F - Proposed (future)
                        D - Temporary (detour)
                        T - Truck Route
                        N - None of the above
Attribute:
  Attribute_Label:  SIGN3
  Attribute_Definition: Alternate Sign Route
  Attribute_Definition_Source:  FHWA
    Attribute_Domain_Values: character
          Enumerated Domain:
            Enumerated Domain value: Composite Field containing SIGNT3, SIGNN3, and SIGNQ3
             Subfield:  SIGNT3
  Attribute_Definition:
          Enumerated Domain:
                Enumerated_Domain_Value:
                  (blank) - not signed
                        I - Interstate
                        U - US Route
                        S - State Route
                        O - Off-Interstate Business Marker
                        C - County Route
                        T - Township
                        M - Municipal
                        P - Parkway or Forest Route Marker
                        N - None of the above
             Subield: SIGNN3
  Attribute_Definition:
          Enumerated Domain:
                Enumerated_Domain_Value:  A-Z, 0-9
             Subield:  SIGNQ3
  Attribute_Definition:
          Enumerated Domain:
                Enumerated_Domain_Value:
                  (blank) - No qualifier, not signed, or not applicable
                        A - Alternate Route
                        B - Business Route
                        P - Bypass
                        S - Spur
                        L - Loop
                        F - Proposed (future)
                        D - Temporary (detour)
                        T - Truck Route
                        N - None of the above
Attribute:
  Attribute_Label: MILES
  Attribute_Definition: An accurate measurement in miles for the link chain. Contains two (2) implied decimal places and is calculated from the link chain
  Attribute_Definition_Source: calculated
    Attribute_Domain_Values:
Attribute:
  Attribute_Label: KM
  Attribute_Definition: An accurate measurement in kilometers for the link chain. Contains two (2) implied decimal places and is calculated from the MILES field
  Attribute_Definition_Source:
    Attribute_Domain_Values:
Attribute:
  Attribute_Label: FACTYPE
  Attribute_Definition: Describes the permissible flow of traffic over the link
  Attribute_Definition_Source:
    Attribute_Domain_Values:
          Enumerated Domain:
            Enumerated_Domain_Value:  1 - One way flow
                                      2 - bi-directional flow
Attribute:
  Attribute_Label: TOLL
  Attribute_Definition: Identifies links which have one or more toll features associated with travel along the link
  Attribute_Definition_Source:
    Attribute_Domain_Values:  Positive integer
          Enumerated Domain:
            Enumerated_Domain_Value: 0 - Not A Toll Road
                                     1 - Toll Road
Attribute:
  Attribute_Label: LANES
  Attribute_Definition: Number of lanes in both directions
  Attribute_Definition_Source:
    Attribute_Domain_Values:  Positive integer
          Enumerated Domain:
            Enumerated_Domain_Value: 0 - 99
Attribute:
  Attribute_Label: ACONTROL
  Attribute_Definition:  Describes the degree of access control to the link from adjoining roads
  Attribute_Definition_Source:
    Attribute_Domain_Values: Positive integer
          Enumerated Domain:
            Enumerated_Domain_Value:  0 - Unknown
                                      1 - Full Access Control
                                      2 - Partial Access Control
                                      3 - No Access Control
         Note: Classification of Access Control should be consistent with HPMS Guidelines
Attribute:
  Attribute_Label: MEDIAN
  Attribute_Definition: Describes the type of median
  Attribute_Definition_Source:
    Attribute_Domain_Values: Positive integer
          Enumerated Domain:
            Enumerated_Domain_Value:  0 - Unknown
                                      1 - Divided Highway
                                      2 - Undivided Highway
Attribute:
  Attribute_Label:  SURFACE
  Attribute_Definition: Identifies the predominant surface type on the link
  Attribute_Definition_Source:
    Attribute_Domain_Values: Positive integer
          Enumerated Domain:
            Enumerated_Domain_Value:  0 - Unknown
                                      1 - Paved
                                      2 - Unpapved
                                      3 - Ferry
Attribute:
  Attribute_Label:  FCLASS
  Attribute_Definition: Identifies the assigned functional class of each link. The Functional Class represents the assigned classification from the 1992 Functional Reclassification by State agencies
  Attribute_Definition_Source: Standarad HPMS Codes
    Attribute_Domain_Values: integer
          Enumerated Domain:
            Enumerated_Domain_Value:
                   01 - Rural Interstate
                   02 - Rural Principal Aterial
                   06 - Rural Minor Arterial
                   07 - Rural Major Collector
                   08 - Rural Minor Collector
                   09 - Rural Local
                   11 - Urban Interstate
                   12 - Urban Freeway or Expressway
                   14 - Urban Principal Arterial
                   16 - Urban Minor Arterial
                   17 - Urban Collectotr
                   19 - Urban Local
Attribute:
  Attribute_Label: ACLASS
  Attribute_Definition: Administrative class associated with the link (Federal Aid System)
  Attribute_Definition_Source:
    Attribute_Domain_Values: character
          Enumerated Domain:
            Enumerated_Domain_Value:
                       (blank) - Federal-Aid status unknown
                             I - Federal-Aid Interstate
                             P - Federal-Aid Primary
                             S - Federal-Aid Secondary
                             U - Federal-Aid urban
                             N - Not on Federal-Aid System
                             F - Direct Federal System
Attribute:
  Attribute_Label: RU_CODE
  Attribute_Definition: Rural/Urban classification
  Attribute_Definition_Source:
    Attribute_Domain_Values: integer
          Enumerated Domain:
            Enumerated_Domain_Value:
                    1 - Rural
                    2 - Small Urban (1990 pop 5,000-49,999)
                    3 - Large Urban (1990 > 50,000)
Attribute:
  Attribute_Label: STATUS
  Attribute_Definition: Describes availability of the link to through traffic
  Attribute_Definition_Source:
    Attribute_Domain_Values:
          Enumerated Domain:
            Enumerated_Domain_Value:
                    0 - Proposed/Under construction
                    1 - Open to traffic
Attribute:
  Attribute_Label:  NHS
  Attribute_Definition: Special subnetwork for the proposed National Highway System
  Attribute_Definition_Source:
    Attribute_Domain_Values: Positive Integer
          Enumerated Domain:
            Enumerated_Domain_Value:
                    0 - Not on NHS
                    1 - Interstate
                    2 - ISTEA High Priority Corridor
                    3 - Non-Interstate STRAHNET
                    4 - STRAHNET Connector
                    5 - ISTEA High Priority Corridor/Non-Interstate STRAHNET
                    6 - ISTEA High Priority Corridor STRAHNET Connector
                    7 - Other NHS
         Note: The definition of the complete ISTEA High Priority Corridor subnetwork can be made by selecting NHPN  links that have a NHS value of 2, 5, or 6
Attribute:
  Attribute_Label: STRAHNET
  Attribute_Definition: Special subnetwork for the Strategic Highway Corridor Network
  Attribute_Definition_Source:
    Attribute_Domain_Values:
          Enumerated Domain:
            Enumerated_Domain_Value:
                    0 - Not on STRAHNET
                    1 - Non-Interstate STRAHNET link
                    2 - STRAHNET Priority 1 Connector
                    3 - STRAHNET Priority 2 Connector
                    4 - STRAHNET Priority 3 Connector
                    5 - Temporary STRAHNET Route
Attribute:
  Attribute_Label: TRANSAM
  Attribute_Definition: Special subnetwork for the TransAmerica corridor
  Attribute_Definition_Source:
    Attribute_Domain_Values: Positve integer
          Enumerated Domain:
            Enumerated_Domain_Value:
                    0 - Not on the Trans-America corridor
                    1 - Trans-America corridor link
          Notes:  The TRANSAM field describes a representation of what the Trans-America corridor could look like. At the time of documentation no Trans-America corridor has been defined.  The definition of the represented corridor is due to Bruce Peterson, Oak Ridge National Laboratory
Entity_Type:
    Entity_Type_label: NHPN.TN2
                       NHPN_TN2.DBF
    Entity_Type_Definition: Node Attribute Table
      Entity_Type_Definition_Source: Federal Highway Administration, Office of Environment and planning, HEP-11
Field	  Field   Field  Field  Beg  End   Field
Number Name    Type   Width  Pos  Pos  Description
 1     RECTYPE  C      1      1    1   Record Type: Always 'T'
 2     VERSION  C      2      2    3   File version number
 3     REVISION C      2      4    5   Record revision number
 4     MODDATE  I      8      6   13   Record Modification Date
 5     FEATURID I     10     14   23   Sequential unique Node Identifier
 6     NODEID   I     10     24   33   Unique node identifier
 7     STFIPS   C      2     34   35   State FIPS Code
 7     CTFIPS   C      3     36   38   County FIPS Code
 8     ORNL-ID  I      7     39   45   Unique identifier from ORNL
 9     LGURB    I      3     46   48   Three digit HPMS Urbanized Area code
10     SMURB    I      5     49   53   Five digit CENSUS Adjusted Small Urban Area Code
11     BNDRY    I      2     54   55   To designate boundary node
Attribute:
  Attribute_Label:  RECTYPE
  Attribute_Definition: One character which defines the type of file from a data set.
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  character
          Enumerated_Domain:
            Enumerated_Domain_Value:  T
Attribute:
  Attribute_Label:  VERSION
  Attribute_Definition:  File version number
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  Positive integer
Attribute:
  Attribute_Label:  REVISION
  Attribute_Definition:  Record revision number
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  Positive integer
Attribute:
  Attribute_Label:  MODDATE
  Attribute_Definition:  Record Modification Date
  Attribute_Definition_Source:  Assigned
    Attribute_Domain_Values:  Positive integer
Attribute:
  Attribute_Label: FEATIRID
  Attribute_Definition: Unique node identification
  Attribute_Definition_Source: Assigned
    Attribute_Domain_Values: Positive integer
Attribute:
  Attribute_Label:  NODEID
  Attribute_Definition:  Unique node identification
  Attribute_Definition_Source: Assigned
    Attribute_Domain_Values: Positive integer
Attribute:
  Attribute_ Label: STFIPS
  Attribute_ Definition: State FIPS Code
  Attribute_ Definition_Source: FIPS Pub 6-4
  Attribute_Domain_Values:  character
    Codeset Domain:
      Codeset Name: Federal Information Processing Standard
Attribute:
  Attribute_Label:  CTFIPS
  Attribute_Definition: County Federal Information Processing
      Standard Code
  Attribute_Definition_Source: FIPS Pub 6-4
    Attribute_Domain_Values: character
    Codeset Domain:
      Codeset Name: Federal Information Processing Standard
Attribute:
  Attribute_Label:  ORNL-ID
  Attribute_Definition: The ORNL-ID is used to maintain consistency between Version 1 of the NHPN, developed for the FHWA and other agencies primarily by the Oak Ridge National Laboratory (Peterson 1992), and the FHWA's NHPN Version 2. Each node element in the NHPN will contain the equivalent Version 1 ORNL-ID as a foreign key where possible
  Attribute_Definition_Source:
    Attribute_Domain_Values:
Attribute:
  Attribute_Label:  LGURB
  Attribute_Definition: Three digit HPMS Urbanized Area code for the Adjusted Urbanized Area in which the node lies. A value of 0 indicates the node is outside any HPMS Adjusted Urbanized Areas. Nodes which lie on the boundary of an Urbanized Area will have a LGURB value of zero
  Attribute_Definition_Source:
    Attribute_Domain_Values: Positive integer
           Range Domain:
             Range_Domain_Value: 0 - 999
Attribute:
  Attribute_Label:  SMURB
  Attribute_Definition: Five digit CENSUS Adjusted Small Urban Area code for cities under 50,000 population in 1990. A value of 0 indicates the node is outside any Adjusted Small Urban Area.  Nodes which lie on the boundary of a small urban area will have a SMURB value of zero
  Attribute_Definition_Source:
    Attribute_Domain_Values: Positive integer
           Range Domain:
             Range_Domain_Value: 0 - 99999Attribute:
  Attribute_Label:  BNDRY
  Attribute_Definition: The BNDRY Flag is used to identify nodes which lie on the boundary of logical polygons maintained within NHPN
  Attribute_Definition_Source:
    Attribute_Domain_Values:
          Enumerated Domain:
            Enumerated_Domain_Value:
                           0 - Not a boundary node                           1 - County Boundary                           2 - Adjusted Urbanized Area                           4 - Adjusted Small Urban Area                          10 - State Border
     Note: The values for BNDRY are additive and can be used to describe a node which lies on the border of more than one boundary. For example a node at a State border will also be a county border node and will therefore, have a value of 1 + 10 = 11.  Similarly a node which lies on the boundary of an Urbanized Area and a small urban area will have a BNDRY value of 4 + 2 = 6. If it were also a county boundary it would have a value of 1 + 2 + 4 = 7.
                Distribution Information
Distributor
  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: DC
     Postal Code:  20590
  Contact Voice Telephone:  1 202 366 DATA
  Contact Facsimile Telephone:  1 202 366 3640
  Contact Electronic Mail Address:  orders@bts.gov
Resource Description: National Transportation Atlas Database 1997
Distribution Liability:  None
Standard Order Process
  Digital Form
     Digital Transfer Information
       Format Name: BTS (Bureau of Transportation Statistics standard format for spatial data)
       Format Information Content: The BTS standard format for spatial data is an interim format for distributing National Transportation Atlas Databases pending final approval of an SDTS Transportation Network Profile (TNP).  The BTS standard format consists of a linked set of ASCII fixed record length files.  File formats and data dictionary for the BTS standard format are described in the document,  National Transportation Atlas Data Dictionary and Database Formats', September 1995.  Copies of this documentation are distributed with each National Transportation Atlas Database.
       File Decompression Technique: No compression applied.  However, if using digital transfer online option, note access instructions.
       Transfer Size: 130.5 megabytes
     Digital Transfer Option
       Online Option
          Computer Contact Information
            Network Address
               Network Resource Name:
         http://www.bts.gov/gis/ntatlas/networks.html
          Access Instructions: Anyone with access to the Internet 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 BTS server allows visitors to create a downloadable package in any of three common archive formats: .zip - an MS-DOS zip archive; .tgz - a gzip-ed unix tar archive; and .tar - a unix tar archive.  This archived package is placed in a temporary file which can then be copied off the BTS server to the visitor's home directory.
          Online Computer and Operating System:  Sun Ultra running Solaris 2.5.1 operating system.
       Offline Option
          Offline Media:  CD-ROM
          Recording Capacity
            Recording Density:  650
            Recording Density Units: megabytes
          Recording Format:   ISO 9660
          Compatibility Information: CD-ROM is available in either MS-DOS or UNIX compatible record formats.
  Fees:  none
  Ordering Instructions: Call, mail, fax, or E-mail BTS and request the National Transportation Atlas Databases 1997 CD-ROM.  This and other BTS products may also be ordered from the BTS Internet site
       (http://www.bts.gov/btsprod/order.html).
                    Metadata Reference Option
Metadata Date:  19940720
Metadata Review Date: 199706
Metadata Contact:
  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 3282
  Contact Facsimile Telephone:  1 202 366 3640
  Contact Electronic Mail Address: ntad@bts.gov
Metadata Standard Name:  FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version:  19940608