📄 metadata.txt
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standards and use coordinates defined by the North American Datum,
1983. For the contiguous 48 States, the cartographic fidelity of
most of the 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
favorably 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 database 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
U.S. Census Bureau
Geography Division
Publication_Date: Unpublished material
Title: Census TIGER database
Edition: UA 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 database.
Process_Step:
Process_Description:
In order for others to use the information in the Census TIGER
database in a GIS or for other geographic applications, the
Census Bureau releases periodic extracts of selected information
from the Census TIGER database, 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 database by county or statistical equivalent
area. Census TIGER data for a given county or statistical
equivalent area is then distributed among 19 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 database
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; This dataset uses just the
Roads line Features.
Entity_and_Attribute_Detail_Citation:
U.S. Census Bureau, TIGER/Line files, 2002 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
U.S. Census Bureau
Geography Division
Geographic Products Management Branch
Contact_Address:
Address_Type: Physical address
Address: 8903 Presidential Parkway, Room 303 WP I
City: Upper Marlboro
State_or_Province: Maryland
Postal_Code: 20772
Contact_Voice_Telephone: (301) 763-1128
Contact_Address:
Address_Type: Mailing address
Address: 4700 Silver Hill Road, Stop 7400
City: Washington
State_or_Province: District of Columbia
Postal_Code: 20233-7400
Contact_Voice_Telephone: (301) 763-1128
Contact_Facsimile_Telephone:
(301) 763-4710
Contact_Electronic _Mail_Address: tiger@census.gov
Resource_Description: 2002 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: 2002
Format_Version_Date: 2002
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
Fees:
The online copy of the TIGER/Line files may be accessed without
charge. See http://www.census.gov/geo/www/tiger for information
on availability on CD-ROM/DVD and associated costs for these
products.
Ordering_Instructions:
To obtain more information about ordering TIGER/Line files visit
http://www.census.gov/geo/www/tiger.
Technical_Prequisites: The 2002 TIGER/Line files contain
geographic data only and do not include display or mapping software
or statistical data. For information on how to use the TIGER/Line
data with a specific software package users should contact the
company that produced the software. 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. The
TIGER/Line files are provided in ASCII text format only. Users
are responsible for converting or translating the files into a
format used by their specific software package.
Metadata_Reference_Information:
Metadata_Date: 2002
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Department of Commerce
U.S. Census Bureau
Geography Division
Geographic Products Management Branch
Contact_Address:
Address_Type: Physical Address
Address: 8903 Presidential Parkway, Room 303 WP I
City: Upper Marlboro
State_or_Province: Maryland
Postal_Code: 20772
Contact_Voice_Telephone: (301) 763-1128
Contact_Electronic_Mail_Address: tiger@census.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: 19940608
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