U. S. Highways in Illinois

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Illinois Department of Natural Resources
Publication_Date: 1994
Title: U. S. Highways in Illinois
Edition:
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.)
Series_Information:
Series_Name: IDNR GIS Database
Issue_Identification: ushways
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Illinois Department of Natural Resources
Online_Linkage:
Downloadable Data (Shift-Click to download data file) <URL:http://www.isgs.uiuc.edu/nsdihome/browse/statewide/ushways.e00>
Online_Linkage:
Browse Graphic (GIF) Screen-size image representing the nature of the data. <URL:http://www.isgs.uiuc.edu/nsdihome/browse/statewide/ushwaysb.gif>
Online_Linkage:
Text (.txt) version of this Metadata file. (Shift-Click to download documentation) <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/ushways.txt>
Online_Linkage:
HTML (.html) version of this Metadata file. (Shift-Click to download documentation) <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/ushways.html>

Description:
Abstract:
This data set contains U. S. highways 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. Data are 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. Major highways were updated as of 1993. The maximum estimated error in horizontal position based on National Map Accuracy Standards is 167 feet. Attributes include up to three highway route numbers.

Purpose:
In a natural resources context, highways and 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.

Supplemental_Information: none

Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1993
Currentness_Reference:
Data are current as of 1993. Updates were done by the Illinois Department of Energy and Natural Resources.

Status:
Progress: complete
Maintenance_and_Update_Frequency: as needed

Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -92.0
East_Bounding_Coordinate: -87.4
North_Bounding_Coordinate: 42.5
South_Bounding_Coordinate: 37.0

Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: infrastructure
Theme_Keyword: expressway
Theme_Keyword: highway
Theme_Keyword: interstate
Theme_Keyword: route
Theme_Keyword: toll
Theme_Keyword: road
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Illinois

Access_Constraints: none

Use_Constraints:
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.

Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Illinois State Geological Survey
Contact_Position: Information Office
Contact_Address:
Address_Type: mailing and physical address
Address: 615 East Peabody Drive
City: Champaign
State_or_Province: Illinois
Postal_Code: 61820
Country: USA
Contact_Voice_Telephone: 217-333-4747
Contact_TDD/TTY_Telephone: 217-785-0211
Contact_Facsimile_Telephone: 217-244-0802
Contact_Electronic_Mail_Address: isgs@isgs.uiuc.edu
Hours_of_Service: 8:00 a.m. - 4:30 p.m., Monday-Friday, U.S. Central Time

Data_Set_Credit: 
 GIS Processing:  INHS Staff
 Documentation:   D. Nelson and S. Beaverson
 Quality Control: INHS Staff
Native_Data_Set_Environment:
Arc/Info version 7.0.3, Solaris 2.5

Cross_Reference:
Citation_Information:
Originator: Illinois Department of Natural Resources
Publication_Date: 1994
Title: Interstates and Toll Roads in Illinois
Series_Information:
Series_Name: IDNR GIS Database
Issue_Identification: stroutes
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Illinois Department of Natural Resources
Online_Linkage:
Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/stroutes.html>

Cross_Reference:
Citation_Information:
Originator: Illinois Department of Natural Resources
Publication_Date: 1994
Title: U. S. Highways in Illinois
Series_Information:
Series_Name: IDNR GIS Database
Issue_Identification: intstate
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Illinois Department of Natural Resources
Online_Linkage:
Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/intstate.html>

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: not available

Logical_Consistency_Report:
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.

Completeness_Report:
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.

Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Accuracy is equal to that of 1:100,000 analog maps based on USGS National Map Accuracy Standards.

Lineage:
Process_Step:
Process_Description:
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.
Process_Date: 1980-1986

Process_Step:
Process_Description: Major highways were updated as of 1993.
Process_Date: 1993

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: vector

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Lambert Conformal Conic
Lambert_Conformal_Conic:
Standard_Parallel: 33 0 0.000
Standard_Parallel: 45 0 0.000
Longitude_of_Central_Meridian: -89 30 0.000
Latitude_of_Projection_Origin: 33 0 0.000
False_Easting: 914400.00000 meters
False_Northing: 0.00000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: unknown
Ordinate_Resolution: unknown
Planar_Distance_Units: feet
Geodetic_Model:
Horizontal_Datum_Name: NAD27
Ellipsoid_Name: CLARKE1866
Semi-major_Axis: 6378206.4 meters
Denominator_of_Flattening_Ratio: 294.98

Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
Attribute items are in typical ARC/INFO feature class format. Those requiring additional explanation are:

Arc Attributes: US#, Redefined to US#1, US#2, US#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.
      Domain:  US#1, US#2, and US#3 - Interstate route numbers
Entity_and_Attribute_Detail_Citation: none

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Illinois State Geological Survey
Contact_Position: Information Office
Contact_Address:
Address_Type: mailing and physical address
Address: 615 East Peabody Drive
City: Champaign
State_or_Province: Illinois
Postal_Code: 61820
Country: USA
Contact_Voice_Telephone: 217-333-4747
Contact_TDD/TTY_Telephone: 217-785-0211
Contact_Facsimile_Telephone: 217-244-0802
Contact_Electronic_Mail_Address: isgs@isgs.uiuc.edu
Hours_of_Service: 8:00 a.m. - 4:30 p.m., Monday-Friday, U.S. Central Time

Distribution_Liability:
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.

Resource_Description:
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.)

Metadata_Reference_Information:
Metadata_Date: 19980731
Metadata_Review_Date: 19980731
Metadata_Future_Review_Date: 20008
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Illinois State Geological Survey
Contact_Position: Information Office
Contact_Address:
Address_Type: mailing and physical address
Address: 615 East Peabody Drive
City: Champaign
State_or_Province: Illinois
Postal_Code: 61820
Country: USA
Contact_Voice_Telephone: 217-333-4747
Contact_TDD/TTY_Telephone: 217-785-0211
Contact_Facsimile_Telephone: 217-244-0802
Contact_Electronic_Mail_Address: isgs@isgs.uiuc.edu
Hours_of_Service: 8:00 a.m. - 4:30 p.m., Monday-Friday, U.S. Central Time
Metadata_Standard_Name:
FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: none
Metadata_Use_Constraints: none

Illinois Natural Resources Geospatial Data Clearinghouse

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