Illinois Department of Natural Resources 1994 1.0 (Note: Although this data set has been in existence for several years, formal version numbers have not been previously assigned. Thus, this and all previous versions are arbitrarily assigned as version 1.0.) IDNR GIS Database stroutes Champaign, Illinois Illinois Department of Natural Resources Downloadable Data (Shift-Click to download data file) <URL:http://www.isgs.uiuc.edu/nsdihome/browse/statewide/stroutes.e00> Browse Graphic (GIF) Screen-size image representing the nature of the data. <URL:http://www.isgs.uiuc.edu/nsdihome/browse/statewide/stroutesb.gif> Text (.txt) version of this Metadata file. (Shift-Click to download documentation) <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/stroutes.txt> HTML (.html) version of this Metadata file. (Shift-Click to download documentation) <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/stroutes.html> These road data are state routes in Illinois. This is a subset of the roads data set stored by county. Note that the functional classification of roadways is the jurisdiction of the Illinois Department of Transportation and is subject to change. Derived from the US Geological Survey 1:100,000 Digital Line Graph files, transportation layer, 1980-1986. Major highways were updated as of 1993. Publication dates of the USGS maps used as sources range from 1980 to 1986. The maximum estimated error in horizontal position based on National Map Accuracy Standards is 167 feet. Attributes include the route number. In a natural resources context, roads are primarily used as a cartographic element on maps for spatial reference. They are also used for analyses that require, for example, a buffer area between roads and natural features. These data are appropriate for use in local and regional thematic analysis. They are not appropriate as a geodetic or engineering base. none 1994 publication date complete as needed -92.0 -87.5 42.5 37.0 none infrastructure expressway highway interstate route toll road none Illinois none Reproduction or redistribution of copyrighted digital data sets or products derived therefrom outside of licensee's organization or entity is expressly forbidden. The only exception is redistribution to consultants working for the licensee, and then only for purposes, related to work for the licensee. Such consultants may not further reproduce or redistribute these data sets. None of these data shall be electronically duplicated on magnetic or optical media for use by others, in whole or in part, without permission of the appropriate custodial division within DNR. Any hardcopies utilizing DNR data sets shall clearly indicate their source. If the licensee has modified the data in any way they are obligated to describe the types of modifications they have performed on the hardcopy map. Licensee specifically agrees not to misrepresent DNR data sets, nor to imply that changes they made were approved by DNR. These data are not to be used for commercial profit. Illinois State Geological Survey Information Office mailing and physical address

615 East Peabody Drive

Champaign Illinois 61820 USA 217-333-4747 217-785-0211 217-244-0802 isgs@isgs.uiuc.edu 8:00 a.m. - 4:30 p.m., Monday-Friday, U.S. Central Time > GIS Processing: INHS Staff > Documentation: D. Nelson and S. Beaverson > Quality Control: INHS Staff Arc/Info version 7.0.3, Solaris 2.5 Illinois Department of Natural Resources 1994 IDNR GIS Database intstate Champaign, Illinois Illinois Department of Natural Resources Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/intstate.html> Illinois Department of Natural Resources 1994 IDNR GIS Database ushways Champaign, Illinois Illinois Department of Natural Resources Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/ushways.html> not available Data set is topologically structured linear data with nodes at all intersections. Pseudo nodes (nodes between arcs with common attribute values across all non-system attribute fields) may exist on some arcs. No statement of completeness was provided with the original USGS DLG data. Visual inspection and use suggests that coverage is comprehensive but reflective of the date of source map publication date. This date varies across the state. All interstates and toll roads contained in USGS 1:100,000 DLG files are included. Accuracy is equal to that of 1:100,000 analog maps based on USGS National Map Accuracy Standards. Derived from the US Geological Survey 1:100,000 Digital Line Graph files, transportation layer, 1980-1986. Publication dates of the USGS maps used as sources range from 1980 to 1986. 1980-1986 Major highways were updated as of 1993. 1993 vector Lambert Conformal Conic 33 0 0.000 45 0 0.000 -89 30 0.000 33 0 0.000 914400.00000 meters 0.00000 coordinate pair unknown unknown feet NAD27 CLARKE1866 6378206.4 meters 294.98 Attribute items are in typical ARC/INFO feature class format. Those requiring additional explanation are: Arc Attributes: > STATE#, Redefined to STATE#1, STATE#2, STATE#3 > Route numbers are contained in a single item which is > subsequently redefined to deal with coincident routes > (routes carrying more than one highway route number). > Any route having a value for route 2 or 3 should also > have a value for route 1. > from DLG files, 1980-86, USGS and IDOT county base map series. > (STATE#1, STATE#2, and STATE#3 - State route numbers) none Illinois State Geological Survey Information Office mailing and physical address

615 East Peabody Drive

Champaign Illinois 61820 USA 217-333-4747 217-785-0211 217-244-0802 isgs@isgs.uiuc.edu 8:00 a.m. - 4:30 p.m., Monday-Friday, U.S. Central Time An Arc/Info .e00 (export) file is currently available free of charge at the Illinois Natural Resources Geospatial Data Clearinghouse. Refer to the Citation Information portion of this file for access to downloadable data and metadata, and a visual (GIF image) representation of the data. Shift-click to download the data set and related documentation. (Data and metadata offered separately, please download both files.) The Illinois Department of Natural Resources (DNR) provides these geographic data "as is." DNR makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. DNR further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers of DNR, no warranty, expressed or implied, is made by DNR regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty. In no event shall the DNR have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by DNR. 19980731 19980731 200008 Illinois State Geological Survey Information Office mailing and physical address

615 East Peabody Drive

Champaign Illinois 61820 USA 217-333-4747 217-785-0211 217-244-0802 isgs@isgs.uiuc.edu 8:00 a.m. - 4:30 p.m., Monday-Friday, U.S. Central Time FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 none none