onemap_prod.SDEADMIN.ptcp_arc

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Frequently-anticipated questions:


What does this data set describe?

Title: onemap_prod.SDEADMIN.ptcp_arc
Abstract:
North Carolina Sea Grant and the North Carolina Department of Environment and Natural Resources, Division of Parks and Recreation, in cooperation with the NC Center for Geographic Information and Analysis, developed the digital geographic information system (GIS) Paddle Trails, Coastal Plain data to as part of an ongoing effort to inventory and publicize watertrails through DPR's trails programs. This data contains the trail locations and access points for the inventoried trails in the coastal plain of North Carolina. Other trails in the coastal plain and in other portions of the state are to be inventoried as resources allow.
Supplemental_Information:
system filename : sgpt    file size = 2.7 mb

Revisions and updates to this layer include:
1) filename: ptcp401    The April 9, 2001 version was the original
version of this data.
  1. How should this data set be cited?

    NC DENR, Div. of Parks and Recreation, 20010409, onemap_prod.SDEADMIN.ptcp_arc: NC DENR, Div. of Parks and Recreation, Raleigh, North Carolina.

    Online Links:

    Other_Citation_Details: NCCGIA distributes this dataset

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -79.451227
    East_Bounding_Coordinate: -75.828990
    North_Bounding_Coordinate: 36.578351
    South_Bounding_Coordinate: 33.818230

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Calendar_Date: REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground.
    Currentness_Reference: Data creation and revision dates

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: vector digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      Indirect_Spatial_Reference: River basin name
      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • String (668)
      • Node, planar graph (683)

    2. What coordinate system is used to represent geographic features?

      Grid_Coordinate_System_Name: State Plane Coordinate System 1983
      State_Plane_Coordinate_System:
      SPCS_Zone_Identifier: 3200
      Lambert_Conformal_Conic:
      Standard_Parallel: 34.333333
      Standard_Parallel: 36.166667
      Longitude_of_Central_Meridian: -79.000000
      Latitude_of_Projection_Origin: 33.750000
      False_Easting: 609601.220000
      False_Northing: 0.000000

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.000512
      Ordinates (y-coordinates) are specified to the nearest 0.000512
      Planar coordinates are specified in meters

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.

      Vertical_Coordinate_System_Definition:
      Altitude_System_Definition:
      Altitude_Resolution: 1.000000
      Altitude_Encoding_Method:
      Explicit elevation coordinate included with horizontal coordinates

  7. How does the data set describe geographic features?

    onemap_prod.SDEADMIN.ptcp_arc
    Routes on water bodies identified for use by paddled watercraft (Source: CGIA)

    MINOR2
    Digital line graph code for hydro feature (Source: USGS, NMD)

    Formal codeset
    Codeset Name:Digital Line Graph Codes
    Codeset Source:USGS, NMD

    CON_AGENCY
    Name of the agency with oversight of the trail (Source: DPR)

    Values vary in length and number of words

    CON_ADDRESS
    Address of the agency with oversight of the trail (Source: DPR)

    Values vary in length and number of words

    OBJECTID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    LENGTH
    Length of arc in coverage units (Source: Software computed)

    Range of values
    Minimum:0.000
    Maximum:33,636.770
    Units:meters
    Resolution:.001

    MINOR1
    Digital line graph code for hydro feature (Source: USGS, NMD)

    Formal codeset
    Codeset Name:Digital Line Graph Codes
    Codeset Source:USGS, NMD

    FNODE_

    TNODE_

    LPOLY_

    RPOLY_

    PTCP_

    PTCP_ID

    STREAM_NAME

    RIV_BASIN

    CGIA_FMS

    TRAIL1_NAME

    TRAIL1_

    TRAIL2_NAME

    TRAIL2_

    TRAIL3_NAME

    TRAIL3_

    TRAIL4_NAME

    TRAIL4_

    TRAIL5_NAME

    TRAIL5_

    CON_PHONE_

    SHAPE
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    SHAPE.len

    Paddle Trails, Coastal Plain Access Points
    Boat ramps and other access areas for lauching watercraft. (Source: DPR)

    ARC#
    Number of the arc feature where the node is located (Source: Software computed)

    Range of values
    Minimum:1
    Maximum:670

    PTCP#
    Node internal identification number (Source: Software computed)

    Range of values
    Minimum:0
    Maximum:683

    PTCP-ID
    User defined internal identification number (Source: Software computed)

    Range of values
    Minimum:0
    Maximum:51624

    CODE#
    CGIA internal processing code (Source: CGIA)

    Used only during intial processing

    TRAIL1-ACCESS#
    Sequencial trail access site number for the first coincident trail, starts with 1 and increase by one each time (Source: DPR)

    Values vary by trail

    ACCESS/ROAD-NAME
    Name of the road or route of the access point (Source: DPR)

    Values vary in length and number of words

    TRAIL1-NAME
    Name of first coincident trail for feature (Source: DPR)

    Values vary in length and number of words

    TRAIL1#
    Trail number assigned as part of DPR unique trail ID system based on a combination of region letter, county name abbreviations where trail exists, sequential number of first coincident trail for feature (Source: DPR)

    Values and length vary by trail

    TRAIL2-NAME
    Name of second coincident trail for feature (Source: DPR)

    Values vary in length and number of words

    TRAIL2#
    Trail number assigned as part of DPR unique trail ID system based on a combination of region letter, county name abbreviations where trail exists, sequential number of second coincident trail for feature (Source: DPR)

    Values and length vary by trail

    TRAIL2-ACCESS#
    Sequencial trail access site number for the second coincident trail, starts with 1 and increase by one each time (Source: DPR)

    Values vary by trail

    TRAIL3-NAME
    Name of third coincident trail for feature (Source: DPR)

    Values vary in length and number of words

    TRAIL3#
    Trail number assigned as part of DPR unique trail ID system based on a combination of region letter, county name abbreviations where trail exists, sequential number of third coincident trail for feature (Source: DPR)

    Values and length vary by trail

    TRAIL3-ACCESS#
    Sequencial trail access site number for the third coincident trail, starts with 1 and increase by one each time (Source: DPR)

    Values vary by trail

    TRAIL4-NAME
    Name of forth coincident trail for feature (Source: DPR)

    Values vary in length and number of words

    TRAIL4#
    Trail number assigned as part of DPR unique trail ID system based on a combination of region letter, county name abbreviations where trail exists, sequential number of forth coincident trail for feature (Source: DPR)

    Values and length vary by trail

    TRAIL4-ACCESS#
    Sequencial trail access site number for the forth coincident trail, starts with 1 and increase by one each time (Source: DPR)

    Values vary by trail

    TRAIL5-NAME
    Name of fifth coincident trail for feature (Source: DPR)

    Values vary in length and number of words

    TRAIL5#
    Trail number assigned as part of DPR unique trail ID system based on a combination of region letter, county name abbreviations where trail exists, sequential number of fifth coincident trail for feature (Source: DPR)

    Values and length vary by trail

    TRAIL5-ACCESS#
    Sequencial trail access site number for the fifth coincident trail, starts with 1 and increase by one each time (Source: DPR)

    Values vary by trail

    Entity_and_Attribute_Overview:
    An line feature table and node feature table are defined as follows:
    PTCP.AAT  ARC Attribute Table
    COLUMN  ITEM NAME   WIDTH OUTPUT TYPE  DEC  DESCRIPTION
    1     FNODE#            4    5   B     -  From-node ID of arc
    5     TNODE#            4    5   B     -  To-node ID of arc
    9     LPOLY#            4    5   B     -  Left-poly ID
    13    RPOLY#            4    5   B     -  Right-poly ID
    17    LENGTH            4   12   F     3  Length of arc in meters
    21    PTCP#             4    5   B     -  System feature ID
    25    PTCP-ID           4    5   B     -  User defined feature ID
    29    MINOR1            6    6   I     -  USGS DLG line code
    35    MINOR2            6    6   I     -  USGS DLG line code
    41    STREAM-NAME      60   60   C     -  Waterbody feature name
    101   RIV-BASIN        20   20   C     -  River basin name
    121   CGIA-FMS          4    5   B     -  Feature maintenance status
    125   TRAIL1-NAME     100  100   C     -  Trail name 1
    225   TRAIL1#         100  100   C     -  DPR trail number of trail 1
    325   TRAIL2-NAME     100  100   C     -  Trail name 2 (if coincident)
    425   TRAIL2#         100  100   C     -  DPR trail number of trail 2
    525   TRAIL3-NAME     100  100   C     -  Trail name 3 (if coincident)
    625   TRAIL3#         100  100   C     -  DPR trail number of trail 3
    725   TRAIL4-NAME     100  100   C     -  Trail name 4 (if coincident)
    825   TRAIL4#         100  100   C     -  DPR trail number of trail 4
    925   TRAIL5-NAME     100  100   C     -  Trail name 5 (if coincident)
    1025  TRAIL5#         100  100   C     -  DPR trail number of trail 5
    1125  CON_AGENCY      100  100   C     -  Trail's contact agency name
    1225  CON_ADDRESS     100  100   C     -  Trail's contact address
    1325  CON_PHONE#       20   20   C     -  Trail's contact phone number
    PTCP.NAT  NODE Attribute Table
    COLUMN  ITEM NAME     WIDTH OUTPUT TYPE DEC  DESCRIPTION
    1     ARC#                4    5    B   -  Arc feature number
    5     PTCP#               4    5    B   -  System node ID
    9     PTCP-ID             4    5    B   -  User defined node ID
    13    CODE#               4    5    B   -  CGIA processing code
    17    TRAIL1-ACCESS#      4    5    B   -  Trail Access number, trail 1
    21    ACCESS/ROAD-NAME  100  100    C   -  Trail Access location name
    121   TRAIL1-NAME       100  100    C   -  Trail name 1
    221   TRAIL1#           100  100    C   -  DPR Trail number of trail 1
    321   TRAIL2-NAME       100  100    C   -  Trail name 2 (coincident)
    421   TRAIL2#           100  100    C   -  DPR Trail number of trail 2
    521   TRAIL2-ACCESS#      4    5    B   -  Trail Access number, trail 2
    525   TRAIL3-NAME       100  100    C   -  Trail name 3 (coincident)
    625   TRAIL3#           100  100    C   -  DPR Trail number of trail 3
    725   TRAIL3-ACCESS#      4    5    B   -  Trail Access number, trail 3
    729   TRAIL4-NAME       100  100    C   -  Trail name 4 (coincident)
    829   TRAIL4#           100  100    C   -  DPR Trail number of trail 4
    929   TRAIL4-ACCESS#      4    5    B   -  Trail Access number, trail 4
    933   TRAIL5-NAME       100  100    C   -  Trail name 5 (coincident)
    1033  TRAIL5#           100  100    C   -  DPR Trail number of trail 5
    1133  TRAIL5-ACCESS#      4    5    B   -  Trail Access number, trail 5
    
    Entity_and_Attribute_Detail_Citation: None


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    NC Sea Grant
    NC State University, Box 8605
    Raleigh, NC 27695-8605
    (919) 515-2454
    
    NC Div. of Parks and Recreation
    345-B Park Entrance Road
    Seven Springs, NC 28578
    (919) 778-9499
    
    NCCGIA
    North Carolina Center for Geographic Information and Analysis
    NC DENR
    301 North Wilmington Street, Suite 700
    Raleigh, NC 27601-2825
    (919) 733-2090
    
    

  3. To whom should users address questions about the data?

    North Carolina Sea Grant
    NC State University, Box 8605
    Raleigh, North Carolina 27695-8605
    U.S.A.

    (919) 515-2454 (voice)
    (919) 515-7095 (FAX)
    www.ncsu.edu/seagrant

    Hours_of_Service: 8am to 5pm
    Contact_Instructions: Preferred contact is by mail or telephone.


Why was the data set created?

This data was created as part of the North Carolina Coastal Plain Paddle Trails Initiative, a private grant funded program with NC Sea Grant. This initiative consisted off multiple parts that ranged from a paddler's inventory to economic impact assessments. This effort has developed an understanding of how paddling and paddling related actions impact and interact with the environment, local establishment and infrastructure and can help guide efforts in the development of ecotourism.


How was the data set created?

  1. From what previous works were the data drawn?

    None (source 1 of 3)
    DPR, NC, Unknown, Various local trail maps.

    Other_Citation_Details:
    Individual trail maps and multiple trail maps of various scales were supplied by DPR
    Type_of_Source_Media: Paper
    Source_Contribution:
    Hard copy map sources include USGS quadrangles, local trail organization maps, park maps, and hand annotated multisource maps.

    None (source 2 of 3)
    Survey, US Geological , 1990, USGS 7.5 Minute series quadrangles: US Geological Survey, Reston, Virginia.

    Other_Citation_Details: Published map series
    Type_of_Source_Media: GIS data
    Source_Scale_Denominator: 24000
    Source_Contribution: 1:24,000-scale digital linework

    None (source 3 of 3)
    NC Center for Geographic Information and Analysis, 19970721, Hydrography 100000: NC Center for Geographic Information and Analysis, Raleigh, North Carolina.

    Other_Citation_Details: Data is updated as needed
    Type_of_Source_Media: GIS data
    Source_Scale_Denominator: 100000
    Source_Contribution: 1:100,000-scale digital linework

  2. How were the data generated, processed, and modified?

    Date: 09-Apr-2001 (process 1 of 2)
    Using on-screen digitizing, the location of paddle trails identified on existing maps were transferred into a GIS digital file. Node features were created and coded to represent the location of trail access points. Lines were created by buffering or off-setting new line locations from existing shoreline features in the hydrography source data. Feature locations were determined by using the GIS to overlay various thematic layers and by underlying aerial imagery.

    Person who carried out this activity:

    NCCGIA
    301 North Wilmington Street, Suite 700
    Raleigh, North Carolina 27601-2825
    U.S.A.

    (919) 733-2090 (voice)
    (919)715-0725 (FAX)
    dataq@cgia.state.nc.us

    Hours_of_Service: 8:30AM - 5:30PM
    Contact_Instructions: Phone and electronic mail preferred
    (process 2 of 2)
    Metadata imported.

    Data sources used in this process:

    • C:\DOCUME~1\david\LOCALS~1\Temp\2\xml2D.tmp

  3. What similar or related data should the user be aware of?


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    The attribute values in this data were input from existing hardcopy source maps or from compiled descriptions created by the NC DPR trials coordinator. The content was reveiwed using multiple hardcopy printouts and maps, and cross-checked with the descriptive content on the paddle trails website.

  2. How accurate are the geographic locations?

    The trail locations were digitized on screen using buffers and offsets from existing hydrography shoreline files. These 1:100,000 and 1:24,000-scale hydro features are also used as the background hydro features on the printed maps and graphics. This method of data creation enable the best presentation by ensure direct overlay of trails on their respective hydrographic bodies.

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    These mapped trails were the trails recognized by the DPR trails program as meeting some basic requirments as of the creation date of this data. For information on these requirements, contact NC DPR (919) 778-9499

  5. How consistent are the relationships among the observations, including topology?

    Using ESRI's ARC/INFO GIS software, the dataset was built for arc topology using the "build" command. The data set was then cleaned with the default fuzzy tolerance of 32.434 feet, a value within the 40 ft NMAS for 1:24,000-scale data. Topology has not been edited since the last build or clean.


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None
Use_Constraints:
Acknowledgement of products derived from this data set should cite the following: The source of the Paddle Trails, Coastal Plain, data is the North Carolina Corporate Geographic Database. Earlier versions of this dataset may exist. The user must be sure to use the appropriate data set for the time period of interest. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, CGIA cannot assume liability for any damages or misrepresentation caused by any inaccuracies in the data or as a result of changes to the data caused by system transfers.

  1. Who distributes the data set? (Distributor 1 of 1)

    NC Center for Geographic Information and Analysis
    Production Services
    301 North Wilmington Street, Suite 700
    Raleigh, North Carolina 27601-2825
    USA

    (919) 733-2090 (voice)
    (919) 715-0725 (FAX)
    dataq@cgia.state.nc.us

    Hours_of_Service: 8:30AM - 5:30PM
    Contact_Instructions:
    Phone and electronic mail preferred For current price information use a web browser: COST INFORMATION - <http://www.cgia.state.nc.us/cost.html>
  2. What's the catalog number I need to order this data set?

    Water Supply Watershed

  3. What legal disclaimers am I supposed to read?

    NCCGIA is charged with the development and maintenance of the State's corporate geographic database and, in cooperation with other mapping organizations, is committed to offering its users accurate, useful, and current information about the state. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop the corporate database may be reflected in the data supplied. The client must be aware of data conditions and bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collection methodology, currency of data, and other conditions specific to certain data. NCCGIA does not support secondary distribution of this data. The use of trade names or commercial products does not constitute their endorsement by the NCCGIA or North Carolina State Government.

  4. How can I download or order the data?

  5. Is there some other way to get the data?

    Data creation and large data analysis jobs contact Database Administration P:(919)733-2090. All data is available through standard ordering procedures on a cost recovery basis.

  6. What hardware or software do I need in order to use the data set?

    All formats supplied are created using ARC/INFO GIS software on Unix workstations. Other formats are available. Format compatibility is the user's responsibility. For more information on formats and media, use a web browser: FORMAT/MEDIA INFORMATION - <http://www.cgia.state.nc.us/cost.html>


Who wrote the metadata?

Dates:
Last modified: 02-Oct-2006
Metadata author:
North Carolina Center for Geographic Information and Analysis
c/o REQUIRED: The person responsible for the metadata information.
Database Management
301 North Wilmington Street, Suite 700
Raleigh, North Carolina 27601-2825
USA

(919) 733-2090 (voice)
(919) 715-0725 (FAX)
dataq@cgia.state.nc.us

Hours_of_Service: 8:30AM - 5:30PM
Contact_Instructions: Phone and electronic mail preferred
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:


Generated by mp version 2.9.5 on Wed Aug 27 10:31:21 2008