 |
        |
           |
|
|
|
|
TRANS COVERAGE INFORMATION
------------------------------------------------------------------------ Coverage Type vector Topology line Extent Statewide Sources US Geological Survey Digital Line Graphs TRANS contains statewide transportation features including roads, railroads, trails, transmission lines and pipelines. Data for this coverage were complied from USGS 1:100,000 scale DLG files by J.W.Sewall Co. for the Maine Low-Level Radioactive Waste Authority in 1989. The USGS major/minor coding scheme is used in the coverage. In addition, codes have been added by staff at OGIS which mimic the coding of the 1:24,000 scale ROADS and OTRANS coverages. Approximate size of exported file 3,187 kB per 1:100,000 scale quad ------------------------------------------------------------------------ [Image] TRANS CODING SHEET [Image] ------------------------------------------------------------------------ ARC Coding Codes Description CLASS Numerical road class (same as used in 1:24,000 scale roads). 1 Interstate 2 Primary road 3 Secondary road 4 Improved road 5 Unimproved road 6 Trail 7 Footbridge MAJOR1MINOR1 Descriptive road class from USGS. 170 201 Primary route class 1 symbol undivided 170 202 Primary route class 1 symbol divided by centerline 170 203 Primary route class 1 divided lanes separated 170 204 Primary route class 1 one way other than divided highway 170 205 Secondary route class 2 symbol undivided 170 206 Secondary route class 2 symbol divided by centerline 170 207 Secondary route class 2 divided lanes separated 170 208 Secondary route class 2 one way other than divided highway 170 209 Road or street class 3 170 210 Road or street class 4 170 211 Trail class 5 other than 4WD vehicles 170 212 Trail class 5 4WD vehicles 170 213 Footbridge 170 214 Ferry crossing 170 215 Perimeter of parking lot 170 216 Arbitrary extension of line (join or closure) 170 217 Road or street class 3 symbol divided by centerline 170 218 Road or street class 3 divided lanes separated 180 201 Railroad 180 202 Railroad in street or road 180 204 Carline 180 205 Cog railroad incline railway logging tram 180 207 Ferry crossing 180 208 Railroad siding 180 209 Perimeter or limit of yard 180 210 Arbitrary extension of line (join or closure) 190 201 Pipeline 190 202 Power transmission line 190 203 Telephone or telegraph line 190 204 Aerial tramway ski lift 190 205 Arbitrary extension of line (join or closure) OTRANS Other transportation classification (same as used in 1:24,000 scale otrans). 1 Electric 2 Pipeline 3 Railroad 4 Old RR grade 5 Telephone 6 Airfield 7 Substation 8 Power plant 9 Aerial tramway |
Sponsored by: For information regarding advertising rates Click Here! |
Copyright© 1995-2012 MindSites Group / Privacy Policy
GeoCommunity™, Wireless Developer Network™, GIS Data Depot®, and Spatial News™
including all logos and other service marks
are registered trademarks and trade communities of
MindSites Group