Identification_Information:
  Citation:
    Citation_Information:
      Originator:
        U.S. Department of Commerce
        Bureau of the Census
        Geography Division
      Publication_Date: 2001
      Title: TIGER/Line Files, Redistricting Census 2000
      Edition: Redistricting Census 2000
      Series_Information:
        Series_Name: TIGER/Line Files
        Issue_Identification: Version (MMYY) represents the month and year file created
      Publication_Information:
        Publication_Place: Washington, DC
        Publisher:
          U.S. Department of Commerce
          Bureau of the Census
          Geography Division
  Description:
    Abstract:
      TIGER, TIGER/Line, and Census TIGER are registered trademarks of the Bureau
      of the Census. The Redistricting Census 2000 TIGER/Line files are an extract 
      of selected geographic and cartographic information from the Census TIGER 
      data base.  The geographic coverage for a single TIGER/Line file is a county 
      or statistical equivalent entity, with the coverage area based on January 1, 
      2000 legal boundaries.  A complete set of Redistricting Census 2000 TIGER/Line  
      files includes all counties and statistically equivalent entities in the United  
      States and Puerto Rico.  The Redistricting Census 2000 TIGER/Line files will  
      not include files for the Island Areas. The Census TIGER data base represents  
      a seamless national file with no overlaps or gaps between parts.  However, each 
      county-based TIGER/Line file is designed to stand alone as an independent data 
      set or the files can be combined to cover the whole Nation.  The Redistricting 
      Census 2000 TIGER/Line files consist of line segments representing physical 
      features and governmental and statistical boundaries.  The Redistricting Census
      2000 TIGER/Line files do NOT contain the ZIP Code Tabulation Areas (ZCTAs) and 
      the address ranges are of approximately the same vintage as those appearing in 
      the 1999 TIGER/Line files.  That is, the Census Bureau is producing the 
      Redistricting Census 2000 TIGER/Line files in advance of the computer processing 
      that will ensure that the address ranges in the TIGER/Line files agree with the 
      final Master Address File (MAF) used for tabulating Census 2000.  The files contain 
      information distributed over a series of record types for the spatial objects of a 
      county.  There are 17 record types, including the basic data record, the shape 
      coordinate points, and geographic codes that can be used with appropriate software 
      to prepare maps.  Other geographic information contained in the files includes 
      attributes such as feature identifiers/census feature class codes (CFCC) used to 
      differentiate feature types, address ranges and ZIP Codes, codes for legal and 
      statistical entities, latitude/longitude coordinates of linear and point features, 
      landmark point features, area landmarks, key geographic features, and area 
      boundaries.  The Redistricting Census 2000 TIGER/Line data dictionary contains 
      a complete list of all the fields in the 17 record types.
    Purpose:
      In order for others to use the information in the Census TIGER data base in a
      geographic information system (GIS) or for other geographic applications, the 
      Census Bureau releases to the public extracts of the data base in the form of 
      TIGER/Line files.  Various versions of the TIGER/Line files have been released; 
      previous versions include the 1990 Census TIGER/Line files, the 1992 TIGER/Line 
      files, the 1994 TIGER/Line files, the 1995 TIGER/Line files, the 1997 TIGER/Line 
      files, the 1998 TIGER/Line files, and the 1999 TIGER/Line files.  The Redistricting 
      Census 2000 TIGER/Line files were originally produced to support the Census 2000 
      Redistricting Data Program.
    Supplemental_Information:
      To find out more about TIGER/Line files and other Census TIGER
      data base derived data sets visit http://www.census.gov/geo/www/tiger.
  Time_Period_of_Content:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 2000
    Currentness_Reference: 2000
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency:
      TIGER/Line files are extracted from the Census TIGER data base when needed for 
      geographic programs required to support the census and survey programs of the 
      Census Bureau.  No changes or updates will be made to the Redistricting Census 
      2000 TIGER/Line files.  Future releases of TIGER/Line files will reflect updates 
      made to the Census TIGER data base and will be released under a version numbering 
      system based on the month and year the data is extracted.
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: +131.000000
      East_Bounding_Coordinate: -64.000000
      North_Bounding_Coordinate: +72.000000
      South_Bounding_Coordinate: -15.000000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Line Feature
      Theme_Keyword: Feature Identifier
      Theme_Keyword: Census Feature Class Code (CFCC)
      Theme_Keyword: Address Range
      Theme_Keyword: Geographic Entity
      Theme_Keyword: Point/Node
      Theme_Keyword: Landmark Feature
      Theme_Keyword: Political Boundary
      Theme_Keyword: Statistical Boundary
      Theme_Keyword: Polygon
      Theme_Keyword: County/County Equivalent
      Theme_Keyword: TIGER/Line
      Theme_Keyword: Topology
      Theme_Keyword: Street Centerline
      Theme_Keyword: Latitude/Longitude

      Theme_Keyword: ZIP Code
      Theme_Keyword: Vector
      Theme_Keyword: TIGER/Line Identification Number (TLID)
      Theme_Keyword: Street Segment
      Theme_Keyword: Coordinate
      Theme_Keyword: Boundary
    Place:
      Place_Keyword_Thesaurus:
        FIPS Publication 6-4
        FIPS Publication 55
      Place_Keyword: United States
      Place_Keyword: Puerto Rico
      Place_Keyword: County
  Access_Constraints: None
  Use_Constraints:
    None.  Acknowledgment of the U.S. Bureau of the Census would be appreciated for 
    products derived from these files.  TIGER, TIGER/Line, and Census TIGER are 
    registered trademarks of the Bureau of the Census.
  Native_Data_Set_Environment:
    TIGER/Line files are created and processed in a VMS environment.  The environment 
    consists of two Alpha Server 8400s clustered together running OpenVMS version 
    6.2-1H3 used for production operations.  The Census TIGER system is driven by 
    DEC Command language (DCL) procedures which invoke C software routines to extract 
    selected geographic and cartographic information (TIGER/Line files) from the 
    operational Census TIGER data base.
Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Accurate against Federal information Processing Standards
      (FIPS), FIPS Publication 6-4, and FIPS-55 at the 100% level for the codes and base
      names.  The remaining attribute information has been examined but has not been fully 
      tested for accuracy.
  Logical_Consistency_Report:
    The feature network of lines (as represented by Record Types 1 and 2) is compete 
    for census purposes.  Spatial objects in TIGER/Line belong to the "Geometry and 
    Topology" (GT) class of objects in the "Spatial Data Transfer Standard" (SDTS) 
    FIPS Publication 173 and are topologically valid.  Node/geometry and topology
    (GT)-polygon/chain relationships are collected or generated to satisfy topological 
    edit requirements.  These requirements include:
    * Complete chains must begin and end at nodes.
    * Complete chains must connect to each other at nodes.
    * Complete chains do not extend through nodes.
    * Left and right GT-polygons are defined for each complete chain element and are 
    consistent throughout the extract process.
    * the chains representing the limits of the files are free of gaps.
    The Census Bureau performed automated tests to ensure logical consistency and limits 
    of files.  All polygons are tested for closure.  The Census Bureau uses its internally 
    developed Geographic Update System to enhance and modify spatial and attribute data in 
    the Census TIGER data base.  Standard geographic codes, such as FIPS codes for states, 
    counties, municipalities, and places, are used when encoding spatial entities.  The 
    Census Bureau performed spatial data tests for logical consistency of the codes during 
    the compilation of the original Census TIGER data base files.  Most of the Codes 
    themselves were provided to the Census Bureau by the USGS, the agency responsible for 
    maintaining FIPS 55. Feature attribute information has been examined but has not been 
    fully tested for consistency.
  Completeness_Report:
    Data completeness of the TIGER/Line files reflects the contents of the Census TIGER 
    data base at the time the TIGER/Line files (Redistricting Census 2000 version) were 
    created.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        The information present in these files is provided for the purposes of statistical 
        analysis and census operations only.  Coordinates in the TIGER/Line files have six 
        implied decimal places, but the positional accuracy of these coordinates is not as 
        great as the six decimal places suggest.  The positional accuracy varies with the 
        source materials used, but generally the information is no better than the established
        national map Accuracy standards for 1:100,000-scale maps from the U.S. Geological 
        Survey (USGS); thus it is NOT suitable for high-precision measurement applications 
        such as engineering problems, property transfers, or other uses that might require 
        highly accurate measurements of the earth's surface.  The USGS 1:100,000-scale maps 
        met national map accuracy standards and use coordinates defined by the North 
        American Datum, 1983.  For the contiguous 48 States, the cartographic fidelity of 
        most of the Redistricting Census 2000 TIGER/Line files, in areas outside the 
        1980 census Geographic Base File/Dual Independent map Encoding (GBF/DIME) file 
        coverage and selected other large metropolitan areas, compare favorable with the 
        USGS 1:100,000-scale maps.  The Census Bureau cannot specify the accuracy of 
        features inside of what was the 1980 GBF/DIME-File coverage or selected metropolitan 
        areas.  The Census Bureau added updates to the TIGER/Line files that enumerators 
        annotated on maps sheets prepared from the Census TIGER data base as they attempted 
        to traverse every street feature shown on the Census 2000 map sheets; the Census 
        Bureau also made other corrections from updated map sheets supplied by local 
        participants for Census Bureau programs.  The locational accuracy of these updates 
        is of unknown quality.  In addition to the Federal, State, and local sources, 
        portions of the files may contain information obtained in part from maps and 
        other materials prepared by private companies.  Despite the fact the TIGER/Line 
        data positional accuracy is not as high as the coordinate values imply, the 
        six-decimal place precision is useful when producing maps.  The precision allows 
        features that are next to each other on the ground to be placed in the correct 
        position, on the map, relative to each other, without overlap.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
            U.S. Department of Commerce
            Bureau of the Census
            Geography Division
          Publication_Date: Unpublished material
          Title: Census TIGER data base
          Edition: Redistricting Census 2000
      Type_of_Source_Media: On line
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 2000
        Source_Currentness_Reference:
          Date the file was made available to create TIGER/Line File extracts.
      Source_Citation_Abbreviation: TIGER
      Source_Contribution:
        Selected geographic and cartographic information (line segments) from
        the Census TIGER data base.
    Process_Step:
      Process_Description:
        In order for others to use the information in the Census TIGER data base in 
        a GIS or for other geographic applications, the Census Bureau releases periodic
        extracts of selected information from the Census TIGER data base, organized as
        topologically consistent networks.  Software (TIGER DB routines) written by the
        Geography Division allows for efficient access to Census TIGER system data.  
        TIGER/Line files are extracted from the Census TIGER data base by county or 
        statistical equivalent area.  Census TIGER data for a given county or statistical 
        equivalent area is then distributed among 17 fixed length record ASCII files, each 
        one containing attributes for either line, polygon, or landmark geographic data 
        types.  The Census Bureau has released various versions of the TIGER/Line files 
        since 1988, with each version having more updates (feature and feature names, 
        address ranges and ZIP Codes, coordinate updates, revised field definitions, etc.) 
        than the previous version.
      Source_Used_Citation_Abbreviation: Census TIGER data base
      Process_Date: 2000
Spatial_Data_Organization_Information:
  Indirect_Spatial_Reference:
    Federal Information Processing Standards (FIPS) and feature names
    and addresses.
  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Node, network
      Point_and_Vector_Object_Count: 570 to 56,000
      SDTS_Point_and_Vector_Object_Type: Entity point
      SDTS_Point_and_Vector_Object_Type: Complete chain
      Point_and_Vector_Object_Count: 790 to 83,000
      SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
      Point_and_Vector_Object_Count: 290 to 33,000
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Geographic:
      Latitude_Resolution: 0.000458
      Longitude_Resolution: 0.000458
      Geographic_Coordinate_Units: Decimal degrees
Entity_and_Attribute_Information:
  Overview_Description:
    Entity_and_Attribute_Overview:  The TIGER/Line files contain data describing three major
      types of features/entities;
      Line Features -
      1) Roads
      2) Railroads
      3) Hydrography
      4) Miscellaneous transportation features and selected power lines and pipe lines
      5) Political and statistical boundaries
      Landmark Features -
      1) Point landmarks, e.g., schools and churches.
      2) Area landmarks, e.g., Parks and cemeteries.
      3) Key geographic locations (KGLs), e.g., shopping centers and factories.
      Polygon features -
      1) Geographic entity codes for areas used to tabulate the Census 2000 census 
      statistical data and 1990 geographic areas
      2) Locations of area landmarks
      3) Locations of KGLs
      The line features and polygon information form the majority of data in the TIGER/Line 
      files.  Some of the data/attributes describing the lines include coordinates, feature 
      identifiers (names), CFCCs (used to identify the most noticeable characteristic of a 
      feature), address ranges, and geographic entity codes.  The TIGER/Line files contain 
      point and area labels that describe landmark features and provide locational reference.  
      Area landmarks consist of a feature name or label and feature type assigned to a polygon 
      or group of polygons.  Landmarks may overlap or refer to the same set of polygons.
      The Census TIGER data base uses collections of spatial objects (points, lines, and
      polygons) to model or describe real-world geography.  The Census Bureau uses these 
      spatial objects to represent features such as streets, rivers, and political boundaries 
      and assigns attributes to these features to identify and describe specific features
      such as the 500 block of Market Street in Philadelphia, Pennsylvania.
    Entity_and_Attribute_Detail_Citation:  U.S. Bureau of the Census, TIGER/Line files, 
      Redistricting Census 2000 Technical Documentation.  The TIGER/Line documentation 
      defines the terms and definitions used within the files.
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization:
          U.S. Department of Commerce
          Bureau of the Census
          Geography Division
          Products and Services Staff
      Contact_Address:
        Address_Type: Physical address
        Address: 8903 Presidential Parkway, WP I
        City: Upper Marlboro
        State_or_Province: Maryland
        Postal_Code: 20772
      Contact_Voice_Telephone: (301) 457-1128
      Contact_Address:
        Address_Type: Mailing address
        Address: Bureau of the Census
        City: Washington
        State_or_Province: District of Columbia
        Postal_Code: 20233-7400
      Contact_Voice_Telephone: (301) 457-1128
      Contact_Facsimile_Telephone:
        (301) 457-4710
        Contact_Electronic _Mail_Address: tiger@census.gov
  Resource_Description: Redistricting Census 2000 TIGER/Line Files
  Distribution_Liability: No warranty, expressed or implied is made and no liability is 
    assumed by the U.S. Government in general or the U.S. Census Bureau in specific as 
    to the positional or attribute accuracy of the data.  The act of distribution shall 
    not constitute any such warranty and no responsibility is assumed by the U.S. 
    Government in the use of these files.
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: TGRLN (compressed)
        Format_Version_Number: Redistricting Census 2000
        Format_Version_Date: 2000
        File_Decompression_Technique: PK-ZIP, version 1.93A or higher
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name:  www.census.gov/geo/www/tiger 
    Ordering_Instructions:
      To obtain more information about ordering TIGER/Line files visit 
      http://www.census.gov/geo/www/tiger.
  Technical_Prequisites: The Redistricting Census 2000 TIGER/Line files contain geographic 
      data only and do not include display or mapping software or statistical data.  A 
      list of vendors who have developed software capable of processing TIGER/Line files 
      can be found by visiting http://www.census.gov/geo/www/tiger
Metadata_Reference_Information:
  Metadata_Date: 2000
  Metadata_Contact:
    Contact_Information:
        Contact_Organization_Primary:
            Contact_Organization:
              U.S. Department of Commerce
              Bureau of the Census
              Geography Division
              Products and Services Staff
        Contact_Address:
            Address_Type: Physical Address
            Address: 8903 Presidential Parkway, WP I
            City: Upper Marlboro
            State_or_Province: Maryland
            Postal_Code: 20772
        Contact_Voice_Telephone: (301) 457-1128
        Contact_Electronic_Mail_Address: tiger@census.gov
  Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
  Metadata_Standard_Version: 19940608
