SDE.railroad
Metadata also available as
Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator:
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U.S. Geological Survey or another mapping agency in cooperation with USGS.
- Publication_Date:
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REQUIRED: The date when the data set is published or otherwise made available for release.
- Title: SDE.railroad
- Geospatial_Data_Presentation_Form: vector digital data
- Online_Linkage:
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Server=orac2.scdnr.state.sc.us; Service=5151/tcp; Database=sde; User=sde; Version=SDE.DEFAULT
- Description:
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- Abstract:
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Digital line graph (DLG) are digital representations of cartographic information. DLG's of map features are converted to digital form from maps and related sources. Large-scale DLG data are derived from USGS 1:20,000-, 1:24,000-, and 1:25,000-scale 7.5-minute topographic quadrangle maps. Large-scale DLG data are available in nine categories: (1) hypsography, (2) hydrography, (3) vegetative surface cover, (4) non-vegetative features, (5) boundaries, (6) survey control and markers, (7) transportation, (8) manmade features, (9) Public Land Survey System. All DLG data distributed by the USGS are DLG - Level 3 (DLG-3), which means the data contain a full range of attribute codes, have full topological structuring, and have passed certain quality-control checks.
- Purpose:
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DLG's depict information about geographic features on or near the surface of the Earth, terrain, and political and administrative units. These data were collected as part of the National Mapping Program.
- Supplemental_Information:
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This is a statewide Railroad data set from the 1:24,000 DLG Railroad data sets.
- Time_Period_of_Content:
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- Time_Period_Information:
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- Single_Date/Time:
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- Calendar_Date:
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REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground.
- Currentness_Reference:
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REQUIRED: The basis on which the time period of content information is determined.
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: Irregular
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -83.270178
- East_Bounding_Coordinate: -78.719324
- North_Bounding_Coordinate: 35.262767
- South_Bounding_Coordinate: 31.981202
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: Railroads
- Theme_Keyword: Railroads
- Theme_Keyword: Transportation
- Theme_Keyword: ISO Topic Category 018
- Theme_Keyword: DLG
- Theme_Keyword: Digital Line Graph
- Place:
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- Place_Keyword_Thesaurus: SC
- Place_Keyword: South Carolina
- Place_Keyword: United States
- Access_Constraints: None.
- Use_Constraints:
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Neither the State of South Carolina, the Department of Natural Resources, nor any of its employees, is responsible for any improper or incorrect use of the information described and/or contained herein, and assume no responsibility for the use of the information.
- Point_of_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: South Carolina Department of Natural Resources
- Contact_Person: GIS Manager
- Contact_Position: Technology Development Program Director
- Contact_Address:
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- Address_Type: mailing and physical address
- Address: 1000 Assembly Street
- City: Columbia
- State_or_Province: South Carolina
- Postal_Code: 29201
- Country: United States
- Contact_Voice_Telephone: gisman@dnr.sc.gov
- Contact_Facsimile_Telephone: (803) 734-7001
- Contact_Electronic_Mail_Address: gisman@dnr.sc.gov
- Hours_of_Service: 8:30 am - 5:30 pm
- Contact_Instructions:
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In addition to this contact, further information may be obtained from the South Carolina Department of Natural Resources GIS web pages at URL: <http://www.dnr.sc.gov/gis>
- Data_Set_Credit:
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None. Acknowledgement of the U.S. Geological Survey and the South Carolina Department of Natural Resources would be appreciated in products derived from these data.
- Native_Data_Set_Environment:
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Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000
- Data_Quality_Information:
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- Logical_Consistency_Report:
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Topological requirements include: lines must begin and end at nodes, lines must connect to each other at nodes, lines do not extend through nodes, left and right areas are defined for each line element and are consistent throughout the file, and the lines representing the limits of the file (neatline) are free of gaps.
The tests of logical consistency were performed by the USGS PROSYS program. The neatline was generated by connecting the four corners of the digital file, as established during initialization of the digital file. All data outside the enclosed region were ignored and all data crossing these geographically straight lines were clipped at the neatline. Data within a specified tolerance of the neatline were snapped to the neatline. Neatline straightening aligned the digitized edges of the digital data with the generated neatline, that is, with the longitude/latitude lines in geographic coordinates. All internal areas were tested for closure using PROSYS.
- Completeness_Report:
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For Digital Revision Status = Not revised
Data completeness reflects the content of the source quadrangle. Features may have been eliminated or generalized on the source graphic, due to scale and legibility constraints.
For Digital Revision Status = Limited Update
This file has undergone limited update digital revision. The file contains only (1) those features that are photoidentifiable on monoscopic source, supplemented with limited ancillary source, and (2) those features, present on the original source quadrangle, that can not be reliably photoidentified but that are not considered particularly prone to change.
For Digital Revision Status = Standard Update
This file has undergone standard update digital revision. The data completeness of this file meets NMD standards for feature content.
- Positional_Accuracy:
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- Horizontal_Positional_Accuracy:
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- Horizontal_Positional_Accuracy_Report: For Digital Revision Status = Not revised:
- Vertical_Positional_Accuracy:
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- Vertical_Positional_Accuracy_Report:
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For Hypsography, Hydrography and Survey Control and Markers Only: For Digital Revision Status = Not revised:
- Lineage:
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- Source_Information:
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- Source_Citation:
-
- Citation_Information:
-
- Originator:
-
U.S. Geological Survey or another mapping agency in cooperation with USGS.
- Publication_Date: Unknown
- Publication_Time: Unknown
- Title:
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The Topographic Names Database designation for the source quadrangle.
- Geospatial_Data_Presentation_Form: map
- Publication_Information:
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- Publication_Place: Reston, Virginia
- Publisher: U.S. Geological Survey
- Source_Scale_Denominator: 24000
- Type_of_Source_Media: stable-base material
- Source_Time_Period_of_Content:
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- Source_Currentness_Reference: publication date
- Source_Citation_Abbreviation: MAP1
- Source_Contribution: spatial and attribute information
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator:
-
U.S. Geological Survey or another mapping agency in cooperation with USGS.
- Publication_Date: Unknown
- Publication_Time: Unknown
- Title: 1:12,000 Digital Orthophoto Quadrangle Series
- Geospatial_Data_Presentation_Form: remote-sensing image
- Publication_Information:
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- Publication_Place: Reston, Virginia
- Publisher: U.S. Geological Survey
- Source_Scale_Denominator: 1:12,000 Digital Orthophoto Quadrangle Series
- Type_of_Source_Media: magnetic tape
- Source_Citation_Abbreviation: DOQ1
- Source_Contribution:
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Provides locational and attribute information for photoidentifiable features during revision.
- Process_Step:
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- Process_Description:
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Edgematching: During the edgematching process alternating quads were brought into Arc Edit as edit coverages. Using the NRIMA 7.5 minute reference guide, only alternating, or hatched quads were selected as edit coverages in an attempt to prevent migration of features. Surrounding quads were brought up as back coverages, and arcs or polygons that traversed quad boundaries were edgematched with a degree of error of less than .5 meter. Any arc on the edit coverage that approached the quad boundary but did not have a corresponding arc on the back coverage was given an error code of Ea00, referring to an arc feature not continued over a quad boundary with no correction made. All edit coverage arcs that were moved to align with back coverage arcs with a measure of error of less than .5 meter were coded as either Ed12 or Eb12 in the edgenote item. Ed12 being the code given to arcs that were off by more than .5 meter but less than 15 meters. Eb12 was the code given to arcs that were off by more than 15 meters. The direction in which the arc was moved to be closer to the corresponding back coverage arc was noted in the mdir item field, and the distance between the edit coverage arc and the corresponding back coverage arc was recorded in the mdist item field.
- Process_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: South Carolina Department of Natural Resources
- Contact_Person: GIS Manager
- Contact_Position: Technology Development Program
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 1000 Assembly Street
- City: Columbia
- State_or_Province: South Carolina
- Postal_Code: 29201
- Country: United States
- Contact_Voice_Telephone: gisman@dnr.sc.gov
- Contact_Facsimile_Telephone: (803) 734-7001
- Contact_Electronic_Mail_Address: gisman@dnr.sc.gov
- Hours_of_Service: 8:30 am - 5:30 pm
- Contact_Instructions:
-
In addition to this contact, further information may be obtained from the South Carolina Department of Natural Resources GIS web pages at URL: <http://www.dnr.sc.gov/gis>
- Process_Step:
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- Process_Description:
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Attribute: During the attributing phase of data development, feature attribute values are compared to a source map specific to the data layer. These maps include 1:24,000 USGS 7.5 minute topographic maps,USF&WS NWI Wetlands maps, NRCS County Soil Survey maps, and General Highway maps. Edits are then executed based on comparisons of the digital data to these source maps.
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: South Carolina Department of Natural Resources
- Contact_Person: GIS Manager
- Contact_Position: Technology Development Program Director
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 1000 Assembly Street
- City: Columbia
- State_or_Province: South Carolina
- Postal_Code: 29201
- Country: United States
- Contact_Voice_Telephone: gisman@dnr.sc.gov
- Contact_Facsimile_Telephone: (803) 734-7001
- Contact_Electronic_Mail_Address: gisman@dnr.sc.gov
- Hours_of_Service: 8:30 am - 5:30 pm
- Contact_Instructions:
-
In addition to this contact, further information may be obtained from the South Carolina Department of Natural Resources GIS web pages at URL: <http://www.dnr.sc.gov/gis>
- Process_Step:
-
- Process_Description:
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Quality Review - Phase I: During the 1st quality control and quality analysis phase, feature attribute values are examined internal to the coverage and across quad boundaries using custom AML's, frequencies, and visual checks in ArcEdit. Topological errors are corrected to insure a successful mapjoin at the end of this process step.
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: South Carolina Department of Natural Resources
- Contact_Person: GIS Manager
- Contact_Position: Technology Development Program Director
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 1000 Assembly Street
- City: Columbia
- State_or_Province: South Carolina
- Postal_Code: 29201
- Country: United States
- Contact_Voice_Telephone: gisman@dnr.sc.gov
- Contact_Facsimile_Telephone: (803) 734-7001
- Contact_Electronic_Mail_Address: gisman@dnr.sc.gov
- Hours_of_Service: 8:30 am - 5:30 pm
- Contact_Instructions:
-
In addition to this contact, further information may be obtained from the South Carolina Department of Natural Resources GIS web pages at URL: <http://www.dnr.sc.gov/gis>
- Process_Step:
-
- Process_Description:
-
Quality Review Secondary Phase: During the 2nd quality control and quality analysis phase, feature attribute values are again examined internal to the coverage and across quad boundaries using custom AML's, frequencies, and visual checks in ArcEdit. These checks are performed by a second tier database developer. Topological errors are corrected to insure a successful mapjoin at the end of this process step.
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: South Carolina Department of Natural Resources
- Contact_Person: GIS Manager
- Contact_Position: Technology Development Program Director
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 1000 Assembly Street
- City: Columbia
- State_or_Province: South Carolina
- Postal_Code: 29201
- Country: United States
- Contact_Voice_Telephone: gisman@dnr.sc.gov
- Contact_Facsimile_Telephone: (803) 734-7001
- Contact_Electronic_Mail_Address: gisman@dnr.sc.gov
- Hours_of_Service: 8:30 am - 5:30 pm
- Contact_Instructions:
-
In addition to this contact, further information may be obtained from the South Carolina Department of Natural Resources GIS web pages at URL: <http://www.dnr.sc.gov/gis>
- Process_Step:
-
- Process_Description:
-
Quality Review - Final Phase: The tertiary quality review process is the final QA phase and consists of thorough reviews of the data layer. These inspections are aimed at identifying any remaining errors and inconsistencies in the data. The process involves running a series of Arc/Info macros (AMLs), the first of which logs all errors and recommends corrections. The attributes of each feature (arc and polygon) are compared to a master attribute list and any discrepancies and omissions are logged. All features are then reattributed and then all quads are mapjoined and mismatches in attributes across quadrangle boundaries are identified, tagged, inspected and corrected if necessary. Frequencies are then run on items of the .aat and .pat (when necessary) to identify any remaining features which have not been attributed. Finally, random manual quadrangle spot checks are performed and corrections made when necessary. All coverages are then exported (COMPRESS=FULL) and placed on the public web server for dissemination.
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: South Carolina Department of Natural Resources
- Contact_Person: GIS Manager
- Contact_Position: Technology Development Program Director
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 1000 Assembly Street
- City: Columbia
- State_or_Province: South Carolina
- Postal_Code: 29201
- Country: United States
- Contact_Voice_Telephone: gisman@dnr.sc.gov
- Contact_Facsimile_Telephone: (803) 734-7001
- Contact_Electronic_Mail_Address: gisman@dnr.sc.gov
- Hours_of_Service: 8:30 am - 5:30 pm
- Contact_Instructions:
-
In addition to this contact, further information may be obtained from the South Carolina Department of Natural Resources GIS web pages at URL: <http://www.dnr.sc.gov/gis>
- Process_Step:
-
- Process_Description: Metadata imported.
- Source_Used_Citation_Abbreviation: C:\DOCUME~1\GilliamH\LOCALS~1\Temp\xmlC1C.tmp
- Process_Step:
-
- Process_Description: Metadata imported.
- Source_Used_Citation_Abbreviation: M:\scdata\WaterBasin\ashley\railroads\bethe48rrs\metadata.xml
- Spatial_Data_Organization_Information:
-
- Direct_Spatial_Reference_Method: Vector
- Point_and_Vector_Object_Information:
-
- SDTS_Terms_Description:
-
- SDTS_Point_and_Vector_Object_Type: String
- Point_and_Vector_Object_Count: 9525
- SDTS_Terms_Description:
-
- SDTS_Point_and_Vector_Object_Type: Entity point
- Point_and_Vector_Object_Count: 4488
- Spatial_Reference_Information:
-
- Horizontal_Coordinate_System_Definition:
-
- Planar:
-
- Grid_Coordinate_System:
-
- Grid_Coordinate_System_Name: Universal Transverse Mercator
- Universal_Transverse_Mercator:
-
- UTM_Zone_Number: 17
- Transverse_Mercator:
-
- Scale_Factor_at_Central_Meridian: 0.999600
- Longitude_of_Central_Meridian: -81.000000
- Latitude_of_Projection_Origin: 0.000000
- False_Easting: 500000.000000
- False_Northing: 0.000000
- Planar_Coordinate_Information:
-
- Planar_Coordinate_Encoding_Method: coordinate pair
- Coordinate_Representation:
-
- Abscissa_Resolution: 0.000100
- Ordinate_Resolution: 0.000100
- Planar_Distance_Units: meters
- Geodetic_Model:
-
- Horizontal_Datum_Name: North American Datum of 1983
- Ellipsoid_Name: Geodetic Reference System 80
- Semi-major_Axis: 6378137.000000
- Denominator_of_Flattening_Ratio: 298.257222
- Vertical_Coordinate_System_Definition:
-
- Altitude_System_Definition:
-
- Altitude_Resolution: 0.000100
- Altitude_Encoding_Method:
-
Explicit elevation coordinate included with horizontal coordinates
- Entity_and_Attribute_Information:
-
- Detailed_Description:
-
- Entity_Type:
-
- Entity_Type_Label: SDE.railroad_arc
- Detailed_Description:
-
- Entity_Type:
-
- Entity_Type_Label: SDE.railroad_tic
- Distribution_Information:
-
- Resource_Description: Downloadable Data
- Standard_Order_Process:
-
- Fees: No cost when downloaded from SCDNR website
- Ordering_Instructions:
-
Free-of-charge when downloaded from the South Carolina Department of Natural Resources GIS Data Clearinghouse
- Custom_Order_Process: None.
- Technical_Prerequisites: GIS or compatible software.
- Metadata_Reference_Information:
-
- Metadata_Date: 20090915
- Metadata_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: South Carolina Department of Natural Resources
- Contact_Person: GIS Manager
- Contact_Position: Technology Development Program
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 1000 Assembly Street
- City: Columbia
- State_or_Province: South Carolina
- Postal_Code: 29201
- Country: United States
- Contact_Voice_Telephone: gisman@dnr.sc.gov
- Contact_Facsimile_Telephone: (803) 734-7001
- Contact_Electronic_Mail_Address: gisman@dnr.sc.gov
- Hours_of_Service: 8:30 - 5:30 pm
- Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
- Metadata_Time_Convention: local time
- Metadata_Extensions:
-
- Online_Linkage: <https://doc.arcgis.com/en/arcgis-online/manage-data/metadata.htm>
- Profile_Name: ESRI Metadata Profile
Generated by mp version 2.9.6 on Tue Sep 15 16:04:19 2009