TIGER/Line Shapefile, 2012, state, Oregon, Primary and Secondary Roads State-based Shapefile


Identification Information:
Citation:
Citation Information:
Originator: U.S. Department of Commerce, U.S. Census Bureau, Geography Division
Publication Date: 2012
Title: TIGER/Line Shapefile, 2012, state, Oregon, Primary and Secondary Roads State-based Shapefile
Edition: 2012
Geospatial Data Presentation Form: vector digital data
Online Linkage: http://www2.census.gov/geo/tiger/TIGER2012/PRISECROADS/tl_2012_41_prisecroads.zip
Description:
Abstract: The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Primary roads are generally divided, limited-access highways within the interstate highway system or under State management, and are distinguished by the presence of interchanges. These highways are accessible by ramps and may include some toll highways. The MAF/TIGER Feature Classification Code (MTFCC) is S1100 for primary roads. Secondary roads are main arteries, usually in the U.S. Highway, State Highway, and/or County Highway system. These roads have one or more lanes of traffic in each direction, may or may not be divided, and usually have at-grade intersections with many other roads and driveways. They usually have both a local name and a route number. The MAF/TIGER Feature Classification Code (MTFCC) is S1200 for secondary roads.
Purpose: In order for others to use the information in the Census MAF/TIGER database in a geographic information system (GIS) or for other geographic applications, the Census Bureau releases to the public extracts of the database in the form of TIGER/Line Shapefiles.
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 201108
Ending Date: 201206
Currentness Reference: Publication Date
Status:
Progress: Complete
Maintenance and Update Frequency: No changes or updates will be made to this version of the TIGER/Line Shapefiles. Future releases of TIGER/Line Shapefiles will reflect updates made to the Census MAF/TIGER database.
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -124.703541
East Bounding Coordinate: -116.463262
North Bounding Coordinate: 46.299099
South Bounding Coordinate: 41.991794
Keywords:
Theme:
Theme Keyword Thesaurus: None
Theme Keyword: State or equivalent entity
Theme Keyword: Linear Feature
Theme Keyword: Address Range
Theme Keyword: Street Centerline
Theme Keyword: Road Feature
Theme Keyword: Roads
Theme:
Theme Keyword Thesaurus: ISO 19115 Topic Categories
Theme Keyword: Transportation
Place:
Place Keyword Thesaurus: ANSI INCITS 38:2009 (Formerly FIPS 5-2), ANSI INCITS 31:2009 (Formerly FIPS 6-4),ANSI INCITS 454:2009 (Formerly FIPS 8-6), ANSI INCITS 455:2009(Formerly FIPS 9-1), ANSI INCITS 446:2008 (Geographic Names Information System (GNIS))
Place Keyword: United States
Place Keyword: U.S.
Place Keyword: State or Equivalent Entity
Place Keyword: Oregon
Place Keyword: OR
Place Keyword: 41
Access Constraints: None
Use Constraints: The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The horizontal spatial accuracy information present in these files is provided for the purposes of statistical analysis and census operations only. No warranty, expressed or implied is made with regard to the accuracy of the spatial accuracy, and no liability is assumed by the U.S. Government in general or the U.S. Census Bureau, specifically as to the spatial or attribute accuracy of the data. The TIGER/Line Shapefiles may not be 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.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest.
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Products Branch
Contact Address:
Address Type: mailing
Address: 4600 Silver Hill Road, Stop 7400
City: Washington
State or Province: DC
Postal Code: 20233-7400
Country: United States
Contact Voice Telephone: 301-763-1128
Contact Facsimile Telephone: 301-763-4710
Contact Electronic Mail Address: geo.tiger@census.gov
Data Quality Information:
Attribute Value Accuracy Information:
Attribute Accuracy Report: Accurate against Federal Information Processing Series (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: There may be some inconsistencies in feature names along features. An anomaly exists with the sporadic occurrence of road segments comprising a complete chain with different MAF/TIGER Feature Census Class Code (MTFCC) values assigned. This problem could affect applications that use the MTFCC values for network analysis, routing, or for assigning symbology to a feature when creating a map. The Census Bureau performed automated tests to ensure logical consistency and limits of shapefiles. Node/geometry and topology relationships are collected or generated to satisfy topological edit requirements. These requirements include: (1) Complete chains must begin and end at nodes. (2) Complete chains must connect to each other at nodes. (3) Complete chains do not extend through nodes. (4) Left and right polygons are defined for each complete chain element and are consistent throughout the extract process. (5) The chains representing the limits of the files are free of gaps.
Completeness Report: Data completeness of the TIGER/Line Shapefiles reflects the contents of the Census MAF/TIGER database at the time the TIGER/Line Shapefiles were created.
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report: The Census Bureau uses Global Positioning System (GPS) coordinates at road centerline intersections to evaluate the horizontal spatial accuracy of source files that may be used to realign road features in the MAF/TIGER database and test the horizontal spatial accuracy of the road features in the TIGER/Line Shapefiles. The test compares a survey-grade GPS coordinate to its associated road centerline intersection in the TIGER/Line Shapefiles. The test is based on an independent collection of GPS coordinates for a random sample of road intersections from a centerline file that meet certain criteria. The points are referred to as the sample points and are gathered through a private contractor working for the Census Bureau. Since the collection method uses survey-quality GPS-based field techniques, the resulting control points are considered 'ground truth' against which the TIGER road centerline intersection coordinates are compared. The distances between the coordinates are calculated and the Census Bureau determines the Circular Error 95% (CE95). That is, the accuracy of the file in meters with 95% confidence. The CE95 can be calculated from the mean and standard deviation by using the formula: mean of differences plus (2.65 times the standard deviation). CE95 results reported for each file tested are determined using a spreadsheet with embedded statistical formula. The use and applicability of the spreadsheet and its embedded formula have been verified by Census Bureau statisticians. The basis of the calculation is the use of the root mean square error (RMSE). This is the method as stated in the U.S. Government's Federal Geographic Data Committee Standard FGDC-STD-007.3-1998, Geospatial Positioning Accuracy Standards. Part 3: National Standard for Spatial Data Accuracy. The results of using this measure of accuracy are in compliance with Federal Spatial Data requirements. In terms of the Census Bureau application, the dataset coordinate values are those taken from the centerline file and the coordinate values from an independent source of higher accuracy are those acquired through the Census Bureau's contractor. Please note that the horizontal spatial accuracy, where reported, refers only to the realigned road features identified as matched to the positionally accurate source file with that accuracy. It is not the spatial accuracy of the TIGER/Line Shapefile as a whole.
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 MAF/TIGER database
Type of Source Media: online
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 201108
Ending Date: 201206
Source Currentness Reference: Publication Date
Source Citation Abbreviation: MAF/TIGER
Source Contribution: All line segments
Process Step:
Process Description: TIGER/Line Shapefiles are extracted from the Census MAF/TIGER database by nation, state, county, and entity. Census MAF/TIGER data for all of the aforementioned geographic entities are then distributed among the shapefiles each containing attributes for line, polygon, or landmark geographic data.
Source Used Citation Abbreviation: MAF/TIGER
Process Date: 2012
Spatial Data Organization Information:
Indirect Spatial Reference: Federal Information Processing Series (FIPS), ANSI, and feature names.
Direct Spatial Reference Method: Vector
Point and Vector Object Information:
SDTS Terms Description:
SDTS Point and Vector Object Type: Complete chain
Point and Vector Object Count: 4170
Spatial Reference Information:
Horizontal Coordinate System Definition:
Geographic:
Latitude Resolution: 0.000458
Longitude Resolution: 0.000458
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
Denominator of Flattening Ratio: 298.257
Entity and Attribute Information:
Detailed Description:
Entity Type:
Entity Type Label: PRISECROADS.shp
Entity Type Definition: Primary and Secondary Roads State-based
Entity Type Definition Source: U.S. Census Bureau
Attribute:
Attribute Label: LINEARID
Attribute Definition: Linear feature identifier
Attribute Definition Source: U.S. Census Bureau
Attribute Domain Values:
Unrepresentable Domain: data are unavailable
Attribute:
Attribute Label: FULLNAME
Attribute Definition: Concatenation of expanded text for prefix qualifier, prefix direction, prefix type, base name, suffix type, suffix direction, and suffix qualifier (as available) with a space between each expanded text field
Attribute Definition Source: U.S. Census Bureau
Attribute Domain Values:
Unrepresentable Domain: data are unavailable
Attribute:
Attribute Label: RTTYP
Attribute Definition: Route type code
Attribute Definition Source: U.S. Census Bureau
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: C
Enumerated Domain Value Definition: County
Enumerated Domain Value Definition Source: U.S. Census Bureau
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: I
Enumerated Domain Value Definition: Interstate
Enumerated Domain Value Definition Source: U.S. Census Bureau
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: M
Enumerated Domain Value Definition: Common Name
Enumerated Domain Value Definition Source: U.S. Census Bureau
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: OS
Enumerated Domain Value Definition: OtherState recognized
Enumerated Domain Value Definition Source: U.S. Census BureauU.S. Census Bureau
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: U
Enumerated Domain Value Definition: U.S.
Enumerated Domain Value Definition Source: U.S. Census Bureau
Attribute:
Attribute Label: MTFCC
Attribute Definition: MAF/TIGER feature class code
Attribute Definition Source: U.S. Census Bureau
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: S1100
Enumerated Domain Value Definition: Primary Road
Enumerated Domain Value Definition Source: U.S. Census Bureau
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: S1200
Enumerated Domain Value Definition: Secondary Road
Enumerated Domain Value Definition Source: U.S. Census Bureau
Distribution Information:
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Products Branch
Contact Address:
Address Type: mailing
Address: 4600 Silver Hill Road, Stop 7400
City: Washington
State or Province: DC
Postal Code: 20233-7400
Country: United States
Contact Voice Telephone: 301-763-1128
Contact Facsimile Telephone: 301-763-4710
Contact Electronic Mail Address: geo.tiger@census.gov
Distribution Liability: No warranty, expressed or implied is made with regard to the accuracy of these data, and no liability is assumed by the U.S. Government in general or the U.S. Census Bureau in specific as to the spatial 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. The boundary information in the TIGER/Line Shapefiles is for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes do not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: TGRSHP (compressed)
File Decompression Technique: PK-ZIP, version 1.93 A or higher
Digital Transfer Option:
Online Option:
Computer Contact Information:
Network Address:
Network Resource Name: http://www2.census.gov/geo/tiger/TIGER2012/PRISECROADS/tl_2012_41_prisecroads.zip
Fees: The online copy of the TIGER/Line files may be accessed without charge.
Ordering Instructions: To obtain more information about ordering TIGER/Line shapefiles visit http://www.census.gov/geo/www/tiger
Technical Prerequisites: The TIGER/Line shapefiles contain geographic data only and do not include display mapping software or statistical data. For information on how to use the TIGER/Line shapefile data with specific software package users shall contact the company that produced the software.
Metadata Reference Information:
Metadata Date: 20120615
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Products Branch
Contact Address:
Address Type: mailing
Address: 4600 Silver Hill Road, Stop 7400
City: Washington
State or Province: DC
Postal Code: 20233-7400
Country: United States
Contact Voice Telephone: 301-763-1128
Contact Facsimile Telephone: 301-763-4710
Contact Electronic Mail Address: geo.tiger@census.gov
Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998