San Juan County 2010 Census Roads

Metadata from the RGIS Metadata Repository

Identification Information

Title San Juan County 2010 Census Roads
Date 2011-06-06
Date Type Publication
Cited Responsible Party
Organization Name U.S. Department of Commerce, U.S. Census Bureau, Geography Division
Role identify
Presentation Form vector digital data
Abstract The TIGER/Line Files are shapefiles and related database files (.dbf) that 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 File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The All Roads Shapefile includes all features within the MTDB Super Class "Road/Path Features" distinguished where the MAF/TIGER Feature Classification Code (MTFCC) for the feature in MTDB tha begin with "S". This includes all primary, secondary, local neighborhood, and rural roads, city streets, vehicular trails (4wd), ramps, service drives, alleys, parking lot roads, private roads for service vehicles (logging, oil fields, ranches, etc.), bike paths or trails, bridle/horse paths, walkways/pedestrian trails, and stairways.
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.
Status Complete
Point of Contact
Individual Name
Organization Name U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Products Branch
Position Name
Role Point of contact
Voice 301-763-1128
Facsimile 301-763-4710
Address
Delivery Point 4600 Silver Hill Road, Stop 7400
City Washington
Administrative Area DC
Postal Code 20233-7400
Country United States
Electronic Mail Address geo.tiger@census.gov
Maintenance and Update Frequency TIGER/Line Shapefiles are extracted from the Census MAF/TIGER database. 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.
Descriptive Keywords County or equivalent entity, Linear Feature, Address Range, Street Centerline, Road Feature, Roads
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. The data are free from Title 13 restrictions.
Language English
Topic Category transportation
Extent
Geographic Bounding Box
West Bound -109.046183
East Bound -107.433266
North Bound 37.000032
South Bound 36.000347
Temporal Extent
Beginning Position 2010-01
Ending Position 2010-07
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Distribution Information

Distributor
Individual Name
Organization Name Earth Data Analysis Center
Position Name Clearinghouse Manager
Role Point of contact
Voice 505-277-3622 ext. 230
Facsimile 505-277-3614
Address
Delivery Point MSC01 1110
Delivery Point 1 University of New Mexico
City Albuquerque
Administrative Area NM
Postal Code 87131-0001
Country USA
Electronic Mail Address clearinghouse@edac.unm.edu
Transfer Options
Online Resource ZIP
Online Resource ESRI Shapefile (shp)
Online Resource GML
Online Resource KML
Online Resource GeoJSON
Online Resource JSON
Online Resource Comma Separated Values (csv)
Online Resource MS Excel format (xls)
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Spatial Reference Information

Spatial References
Spatial Reference North American Datum of 1983 in the 48 contiguous states, the District of Columbia, Alaska, Hawaii, Puerto Rico, the Virgin Islands of the United States, and the Pacific Island Areas.
Online Reference EPSG:4269
Spatial Reference Geodetic Reference System 80
Online Reference EPSG:7019
Indirect Spatial Reference Rio Arriba County (35039)
Geometric Object Type Complete chain
Geometric Object Count 42707
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Data Quality Information

Attribute Accuracy Report
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.
Quantitative Attribute Accuracy Assessment
Attribute Accuracy Value
Attribute Accuracy Explanation
Horizontal Positional Accuracy Report
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.
Quantitative Horizontal Positional Accuracy Assessment
Horizontal Positional Accuracy Value 7.38 6.152
Horizontal Positional Accuracy Explanation The Census Bureau uses root mean square error (RMSE) as stated in the FGDC-STD-007. 3-1998, Geospatial Positioning Accuracy Standards, Part 3: National Standard for Spatial Data Accuracy. The Census Bureau uses root mean square error (RMSE) as stated in the FGDC-STD-007. 3-1998, Geospatial Positioning Accuracy Standards, Part 3: National Standard for Spatial Data 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.
Lineage
Source Information
Source Citation
Source Scale Denominator
Type of Source Media online
Source Time Period of Content
Beginning Position 2010-01
Ending Position 2010-07
Source Currentness Reference publication date
Source Citation Abbreviation MAF/TIGER
Source Contribution The selected geographic and cartographic information (line segments) are derived from the U.S. Census Bureau's Master Address File Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) database.
Source Information
Source Citation
Source Scale Denominator
Type of Source Media Unknown
Source Time Period of Content
Beginning Position Unknown
Ending Position Unknown
Source Currentness Reference Unknown
Source Citation Abbreviation San
Source Contribution Coordinates to realign selected road features in the Census MAF/TIGER database.
Source Information
Source Citation
Source Scale Denominator
Type of Source Media email
Source Time Period of Content
Beginning Position Unknown
Ending Position Unknown
Source Currentness Reference Publication Date
Source Citation Abbreviation San1
Source Contribution Coordinates to realign selected hydrographic features in the Census MAF/TIGER database.
Source Information
Source Citation
Source Scale Denominator
Type of Source Media Internet Download
Source Time Period of Content
Beginning Position Unknown
Ending Position Unknown
Source Currentness Reference Unknown
Source Citation Abbreviation National
Source Contribution Coordinates to realign selected hydrographic features in the Census MAF/TIGER database.
Source Information
Source Citation
Source Scale Denominator
Type of Source Media Internet Download
Source Time Period of Content
Beginning Position Unknown
Ending Position Unknown
Source Currentness Reference Unknown
Source Citation Abbreviation National2
Source Contribution Coordinates to realign selected hydrographic features in the Census MAF/TIGER database.
Source Information
Source Citation
Source Scale Denominator
Type of Source Media Unknown
Source Time Period of Content
Beginning Position Unknown
Ending Position Unknown
Source Currentness Reference Unknown
Source Citation Abbreviation San3
Source Contribution Coordinates to realign selected road features in the Census MAF/TIGER database.
Source Information
Source Citation
Source Scale Denominator
Type of Source Media Internet Download
Source Time Period of Content
Beginning Position Unknown
Ending Position Unknown
Source Currentness Reference Unknown
Source Citation Abbreviation National4
Source Contribution Coordinates to realign selected hydrographic features in the Census MAF/TIGER database.
Source Information
Source Citation
Source Scale Denominator
Type of Source Media Unknown
Source Time Period of Content
Beginning Position Unknown
Ending Position Unknown
Source Currentness Reference Unknown
Source Citation Abbreviation 2010
Source Contribution Coordinates to realign selected road features in the Census MAF/TIGER database.
Source Information
Source Citation
Source Scale Denominator
Type of Source Media Unknown
Source Time Period of Content
Beginning Position Unknown
Ending Position Unknown
Source Currentness Reference Unknown
Source Citation Abbreviation 20105
Source Contribution Coordinates to realign selected road features in the Census MAF/TIGER database.
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 2010
Process Time
Process Contact
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Metadata Reference Information

File Identifier 043ab02b-4ce1-458b-824c-e493d47d42a5
Metadata Language English
Hierarchy Level Dataset
Date Stamp 2022-12-06
Metadata Standard Name ISO 19115:2003
Metadata Standard Version 1.0
Metadata Contact
Individual Name
Organization Name Earth Data Analysis Center
Position Name Clearinghouse Manager
Role Point of contact
Voice 505-277-3622 ext. 230
Facsimile 505-277-3614
Address
Delivery Point MSC01 1110
Delivery Point 1 University of New Mexico
City Albuquerque
Administrative Area NM
Postal Code 87131-0001
Country USA
Electronic Mail Address clearinghouse@edac.unm.edu
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