U.S. Department of Commerce, U.S. Census Bureau, Geography Division 2012 2012 vector digital data http://www2.census.gov/geo/tiger/TIGER2012/ROADS/tl_2012_01027_roads.zip 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. 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 that begins 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. 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. 201108 201206 Publication Date Complete 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. -86.17437 -85.641129 33.498904 33.09026 None County or equivalent entity Linear Feature Address Range Street Centerline Road Feature Roads ISO 19115 Topic Categories Transportation 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)) United States U.S. County or Equivalent Entity Clay 01027 None 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. U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Products Branch mailing

4600 Silver Hill Road, Stop 7400

Washington DC 20233-7400 United States 301-763-1128 301-763-4710 geo.tiger@census.gov 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. 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. 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. 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. 4.96 meters for 2937 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. U.S. Department of Commerce, U.S. Census Bureau, Geography Division Unpublished material online 201108 201206 Publication Date MAF/TIGER All line segments 2937 Harris Corporation Unknown Unknown Unknown Unknown Unknown None Coordinates to realign selected road features in the Census MAF/TIGER database. 2938 USGS - National Hydrography Dataset Coordination and Requirements (C&R) Unknown Internet Download Unknown Unknown Unknown None Coordinates to realign selected hydrographic features in the Census MAF/TIGER database. 3108 USGS - National Hydrography Dataset Coordination and Requirements (C&R) Unknown Internet Download Unknown Unknown Unknown None Coordinates to realign selected hydrographic features in the Census MAF/TIGER database. 7190 Census Bureau - Geography Division US Census Bureau - Geo Div - LFGPB Unknown Unknown Unknown Unknown Unknown None Coordinates to realign selected road features in the Census MAF/TIGER database. 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. MAF/TIGER 2012 Federal Information Processing Series (FIPS), ANSI, and feature names. Vector Complete chain 2500 0.000458 0.000458 Decimal degrees North American Datum of 1983 Geodetic Reference System 80 6378137 298.257 ROADS.shp All Roads County-based U.S. Census Bureau LINEARID Linear feature identifier U.S. Census Bureau data are unavailable FULLNAME 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 U.S. Census Bureau data are unavailable RTTYP Route type code U.S. Census Bureau C County U.S. Census Bureau I Interstate U.S. Census Bureau M Common Name U.S. Census Bureau OS OtherState recognized U.S. Census BureauU.S. Census Bureau U U.S. U.S. Census Bureau MTFCC MAF/TIGER feature class code U.S. Census Bureau S1100 Primary Road U.S. Census Bureau S1200 Secondary Road U.S. Census Bureau S1400 Local Neighborhood Road, Rural Road, City Street U.S. Census Bureau S1500 Vehicular Trail (4WD) U.S. Census S1630 Ramp U.S. Census Bureau S1640 Service Drive usually along a limited access highway U.S. Census S1710 Walkway/Pedestrian Trail U.S. Census Bureau S1720 Stairway U.S. Census Bureau S1730 Alley U.S. Census S1740 Private Road for service vehicles (logging, oil fields, ranches, etc.) U.S. Census Bureau S1750 Private Driveway U.S. Census S1780 Parking Lot Road U.S. Census Bureau S1820 Bike Path or Trail U.S. Census Bureau S1830 Bridle Path U.S. Census S2000 Road Median U.S. Census Bureau U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Products Branch mailing

4600 Silver Hill Road, Stop 7400

Washington DC 20233-7400 United States 301-763-1128 301-763-4710 geo.tiger@census.gov 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. TGRSHP (compressed) PK-ZIP, version 1.93 A or higher http://www2.census.gov/geo/tiger/TIGER2012/ROADS/tl_2012_01027_roads.zip The online copy of the TIGER/Line files may be accessed without charge. To obtain more information about ordering TIGER/Line shapefiles visit http://www.census.gov/geo/www/tiger 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. 20120615 U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Products Branch mailing

4600 Silver Hill Road, Stop 7400

Washington DC 20233-7400 United States 301-763-1128 301-763-4710 geo.tiger@census.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998