Data Set Title / Coverage Name: SAA Class 2 Roads SAA Version 3.0 Version Date: 3/21/96 ------------------------------------------------------------------------ ------------------------------------------------------------------------ Identification Information Data Layer Name: class2rd Description: Class 2 roads (Secondary routes) Keywords: roads, highways Citation: Native Data Set: USGS DLG's Environment: UNIX; ARC/INFO 7.0.3 pathname: Scale: 1:100,000 File Format: ARC/INFO 7.0.3 Line coverage Use Restrictions: Access Restrictions: ----------------------------------------------------------------------- ----------------------------------------------------------------------- Spatial Reference Information Datum: North American Datum 1983 (NAD83) Precision: single Projection: Albers Equal Area Units: meters Spheroid: WGS-84 1st Std Parallel: 34 00 00 2nd Std Parallel: 38 00 00 Central Meridian: -82 00 00 Origin: 33 00 00 False Northing: 0.0 False Easting: 0.0 Extent: West Bounding Coord.: East Bounding Coord.: North Bounding Coord.: South Bounding Coord.: Distance Resolution: Vertical Resolution: n/a ----------------------------------------------------------------------- ----------------------------------------------------------------------- Data Quality Information Thematic Accuracy: unknown Confidence: unknown Accuracy Method: unknown Horizontal Accuracy: 1:100K Confidence: unknown Accuracy Method: unknown Vertical Accuracy: n/a Logical Consistency: Completeness: --------------------------------------------------------------------------- --------------------------------------------------------------------------- Source Information Source Material: 1:100,000-Scale DLG Hydrography & Transportation CD's Organization: US Geological Survey Date: 1993 Distance Resolution: unknown Contribution: Source Material: Organization: Date: Distance Resolution: unknown Contribution: Source Material: Organization: Date: Distance Resolution: unknown Contribution: --------------------------------------------------------------------------- --------------------------------------------------------------------------- Processing History Information Process Description: DOS DLG files converted to unix and DLGARC'd into Arc-7 line coverages. Reselected Major/Minor code pairs 170/205 through 170/208. Road number codes converted to concatenated road numbers, and other significant code pairs stored in "special" attribute. Item 'TCOUNT' contains the average daily traffic count for the road segment. Traffic counts estimates were provided by the various State Department of Transportation offices on printed maps. The digital attributes were assigned to road segments by University of Tennessee graduate students and US Forest Service staff. Special cases of TCOUNT values include: TCOUNT description ------ ---------------- - 888 Road segements inside of cities with unknown traffic counts - 999 missing data on traffic counts ---------------------------------------------------------------------- ---------------------------------------------------------------------- Entity/Attribute Information Entity: CLASS2RD.AAT Definition: Major highways within SAA counties Attributes: RD-NUM SPECIAL TCOUNT Entity: Definition: Attributes: Entity: Definition: Attributes: ---------------------------------------------------------------------- ---------------------------------------------------------------------- Status Information Data Set Status: Available Release Date: ---------------------------------------------------------------------- ---------------------------------------------------------------------- Metadata Reference Information Date: Review Date: Contact: ----------------------------------------------------------------------- ----------------------------------------------------------------------- Distribution Information Distribution Contact: Karl A. Hermann Distribution Liability: File Compression Technique: UNIX compress, Arc/Info export format Transfer Size: Arc/Info coverage = 4.1mb ----------------------------------------------------------------------- ----------------------------------------------------------------------- Contact Information Contact Person: Don Norris Contact Mail Address: USFS, 4931 Broad River Rd., Columbia, SC 29210 Contact Phone: (803) 561-4031 Contact Fax: (803) 561-4004 Contact email: /s=d.norris/ou1=r08f12a@mhs-fswa.attmail.com -------------------------------------------------------------------- --------------------------------------------------------------------