METADATA FOR HIGHWAY MAPS DATA SOURCE ************************************************************************ Kentucky Transportation Cabinet 501 High Street Frankfort, Kentucky 40601 Contact: Kentucky Transportation Cabinet Office of Technology GIS & Engineering Branch Phone: (502)564-8900 DATA CREATION METHOD: These Arcinfo coverages were originally heads-up digitizing over "scanned" U.S.G.S. quadrangles. Current updating procedures include the use of Digital Ortho Quarter Quadrangle (DOQQ)imagery and Global Positioning System (GPS) techniques. GEOGRAPHIC EXTENT - BY COUNTY ************************************************************************ 1) Countywide state-maintained roads as Arc/Info transfer files (*STRD.E00) (route-ststem) ArcView shapefiles (*STRD.SHP)(arcs) ArcView measured shapefiles (*STRD_M.SHP)(route-system) 2) Countywide local roads as Arc/Info transfer files (*LOCA.E00) (route-system) ArcView shapefiles (*LOCA.SHP) (arcs) ArcView measured shapefiles (*LOCA_M.SHP) (route-system) Note: Fayette and Jefferson Counties are not available at this time. GEOGRAPHIC EXTENT - STATEWIDE ************************************************************************ 1) Statewide state-maintained roads as an Arc/Info transfer file (STATERDS.E00) (route-system) ArcView shapefile (STATERDS.SHP) (arcs) ArcView measured shapefile (STATERDS_M.SHP) (route-system) 2) Statewide local roads as an Arc/Info transfer file (LOCALRDS.E00) (route-system) ArcView shapefile (LOCALRDS.SHP) (arcs) ArcView measured shapefile (LOCALRDS_M.SHP) (route-system) Note: Fayette and Jefferson Counties are not available at this time. MAP CHARACTERISTICS ************************************************************************ Map Projection: Geographic (Latitude/Longitude) Map Units: Degrees Decimal Datum: NAD83 Transfer formats: 1) Arc/Info (*.E00) file with full compression 2) Shapefile (*.SHP,*.SHX,*.DBF) 3) Measured Shapefile (*.SHP,*.SHX,*.DBF) *File Naming Convention: (4) Character prefix: First four letters of county name with the following exceptions: Greenup grnp Lee Lee McCracken mcra McCreary mcre (4) Character description: strd State-maintained roads loca Local roads co County lines Route-system content: county-route-milepoint Route_system name: HWY Route-system data model: See ESRI Arc/Info data model CENTERLINE DATA STRUCTURES ARC ATTRIBUTE TABLE DESCRIPTION COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC 1 FNODE# 4 5 B - 5 TNODE# 4 5 B - 9 LPOLY# 4 5 B - 13 RPOLY# 4 5 B - 17 LENGTH 8 18 F 5 25 COVER# 4 5 B - 29 COVER-ID 4 5 B - 33 LRS_ID 17 17 C - 50 BEGIN_MP 7 7 N 3 57 END_MP 7 7 N 3 64 ORDERDATE 8 8 D - 72 LINKDATE 8 8 D - 80 DRAWCODE 4 4 I - 84 RD_NAME 40 40 C - 124 SURFTYPE 2 2 I - 126 ROUTE 11 11 C - 139 ROUTE_NBR 8 8 C - 149 GRAPHIC_LEN_MI 7 7 N 3 156 DMI_LEN_MI 7 7 N 3 163 MAP_SOURCE 1 1 I 164 GOV_LEVEL 2 2 I 166 RSE_UNIQUE 17 17 C 0 183 LOCAL_KEY 50 50 C - DATA DEFINITIONS These data structures are based on Environmental Systems Research Institute's (ESRI) arc-node topology: Description of the Arc Attribute Table (.AAT) , (21 data items) Item Name Description Default Arc/Info items: 1. FNODE# Internal sequence number of the from-node Format: (4, 5, B) Column Position: 1 2. TNODE# Internal sequence number of the to-node Format: (4, 5, B) Column Position: 5 3. LPOLY# Internal sequence number of the left polygon Format: (4, 5, B) Column Position: 9 4. RPOLY# Internal sequence number of the right polygon Format: (4, 5, B) Column Position: 13 5. LENGTH Actual arc length in coverage units; (feet) Format: (4, 12, F, 3) Column Position: 17 6. COVER# Internal sequence number of the arc in the ARC file Format: (4, 5, B) Column Position: 21 7. COVER-ID User assigned feature identifier Format: (4, 5, B) Column Position: 25 Attributes added by KYTC: 8. An alpha-numeric column used to store a unique identifier for each highway within a county. These data represent the names of state-maintained highways. It is also used to create a route-system which is used for dynamic segmentation analysis. Item name: LRSE_ID (Replaces RSE_UNIQUE Foreign Key in Highway Info. Sys. RDBMS) Width: 17 Output width: 17 Data type: Character Decimal places: n/a Column: 33 Data content: 016 KY-79X-1 (Note: All future project development should reference LRS_ID rather than RSE_UNIQUE.) Example: CO_NBR (Space) RTE PREFIX (Dash) RTE NUMBER RTE SUFFIX (Dash) COUPLET-ID Route Prefix Values: Highways I Interstate US United States Route FD Forest Service or Federal Agency KY Kentucky State Route ST Other State Agency IC State Park Road NL New Location of State Hwy not Officially Open CR County Road CS City Street PR Private RoadParkways PV Private Driveway PS Private Subdivision Prefix Rte-Number Parkway Name KY 9000 Bert T. Combs Mountain Parkway WK 9001 Wendell H. Ford Western Kentucky Parkway BG 9002 Bluegrass Parkway JC 9003 Julian M. Carroll Parkway EB 9004 Edward T. Breathitt Parkway AU 9005 Audubon Parkway DB 9006 Daniel Boone Parkway WN 9007 William H. Natcher Parkway LN 9008 Louie B. Nunn Parkway KY 9009 Mountain Parkway Extension Route Suffix Values: A - Alternate EX - East Business WX - West Business B - Bypass S - Spur WB - West Bypass C - Connector T - Truck X - Business E - East W - West NL - New Location Couplet-id Values: 1-9 - Non-cardinal sections e.g. one way streets, state maintained roads 10 - Non-cardinal side of Divided Highway 11-19 - Rest Areas, Weigh Stations, Scenic Views in conjunction with Interstatess and Parkways 20-29 - Y's 30-69 - Crossovers 70-79 - Connectors 80-99 - Other: bays, cul-de-sacs, spurs, frontage roads, etc. plus any overflow from the above 111-999 - Interchange ramps 9. A numeric column used to store the beginning milepoint value for each highway center line. Values are determined by Kentucky "Official Order" route descriptions. Milepoint values increase from south to north on odd numbered roads and from west to east on even numbered roads. Item name: BEGIN_MP (Foreign Key in Highway Info. Sys. RDBMS) Width: 7 Output width: 7 Data type: Number Decimal places: 3 Column: 50 10. A numeric column used to store the ending milepoint value for each highway center line. Values are determined by Kentucky "Official Order" route descriptions. Item name: END_MP (Foreign Key in Highway Info. Sys. RDBMS) Width: 7 Output width: 7 Data type: Number Decimal places: 3 Column: 57 11. The date appearing on the 'Official Order' document used to update the map. Item name: ORDERDATE Width: 8 Output width: 8 Data type: Date Decimal places: Column: 64 12. The date that the map graphic was last updated. Item name: LINKDATE Width: 8 Output width: 8 Data type: Date Decimal places: Column: 72 13. Drawing code represents highway system or pavement types. These values are used to produce colored lines during editing sessions and do not contain official highway characteristic information. Item name: DRAWCODE Width: 4 Output width: 4 Data type: Integer Column: 80 Values: State-Maintained Roads: 4 (US) 5 (Interstate & Parkways) 6 (KY) Local Roads: 2 (red, paved) 3 (green, unpaved) 8 (orange, city street) 13 (plum, state park & forest service roads) 14 (lt. gray, unimproved) 14. County designated road name. Item name: ROAD_NAME (Maintained in Highway Info. Sys. RDBMS) Width: 40 Output width: 40 Data type: Character Column: 84 Comments: For county roads and city streets this information represents road names that appear on street signs. 15. County road surface-type code. Item name: SURFTYPE (Maintained in Highway Info. Sys. RDBMS) Width: 2 Output Width: 2 Data type: Integer Column: 124 Values: 70 (Concrete) 52 (Blacktop) 40 (Gravel, Soil or Stone) 20 (Unimproved) 16. A textual column containing the highway route description without the county number. The information in this column is used to label roadway graphics. Item name: ROUTE Width: 13 Output width: 13 Data type: Character Decimal places: n/a Column: 126 Comments: An item with the same name is found in the Route Attribute Table (RAT) and does not contain the same information. The RAT file represents unique state road designations. 17. A textual column containing the highway route number. The information in this column is used to label roadway graphics. Item name: ROUTE_NBR Width: 10 Output width: 10 Data type: Character Decimal places: n/a Column: 139 Comments: Data is used to place numbers in route shields 18. A numeric column used to store the length of each arc in units of miles. This data is computed from the arc length in map units (feet) divided by 5280. Item name: GRAPHIC_LEN_MI Width: 7 Output width: 7 Data type: Number Decimal places: 3 Column: 149 19. A numeric column used to store the length of each arc as measured with a Distance Measuring Instrument (DMI). This data computed by subtracting the 'begin_mp' column from the 'end_mp' column. Item name: DMI_LEN_MI Width: 7 Output width: 7 Data type: Number Decimal places: 3 Column: 156 20. A numeric column used to store a coded reference for the map source used to produce the roadway graphic. Item name: MAP_SOURCE Width: 1 Output width: 1 Data type: Integer Decimal places: N/A Column: 163 Values: 1 Global Positioning System (GPS) 2 Heads-up digitized from Digital Ortho-photo 3 Heads-up digitized from Digital Raster Graphic 9 Other source 21. A numeric column used to store a coded reference for the map source used to produce the roadway graphic. Item name: GOV_LEVEL Width: 2 Output width: 2 Data type: Integer Decimal places: N/A Column: 164 Values: 01 State 02 County 04 City 11 State Park or State Forest 12 Local Park or Forest 21 Other State Agency Roads 25 Other Local Agency Roads 26 Private Roads 60 Other Federal Agency Roads 64 US Forest Service Roads 66 National Park Service Roads 70 Military & Corps of Engineers Roads 89 New Location: Open to traffice but not yet accepted 98 Route belongs to adjacent state 99 New Location: Proposed or Under Construction 22. An alpha-numeric column used to store a unique identifier for each highway within a county. These data represent the names of state-maintained highways. It is also used to create a route-system which is used for dynamic segmentation analysis. Item name: RSE_UNIQUE (Foreign Key in Highway Info. Sys. RDBMS) Width: 17 Output width: 17 Data type: Character Decimal places: n/a Column: 166 Data content: 016 KY-79X-1 23. New field added (12/2001) in order to accommodate the incorporation of locally collected data and to allow for external databases (like local address ranges) to be tied to KYTC spatial data. The field is intentionally large in order to accommodate a variety of possible structures for a unique ID. Item name: LOCAL_KEY Width: 50 Output width: 50 Data type: Character Decimal places: N/A Column: 183