Pavement

Frequently-anticipated questions:

What does this data set describe?

Title: Pavement
Abstract: Road edge of pavement boundaries.
  1. How should this data set be cited?

    Inc, WorldView Solutions , October 2006, Pavement.

    Online Links:

    • \\wvs1\Clients\Accomack\Current\Data\AccomackGIS_old.gdb

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -76.010265
    East_Bounding_Coordinate: -75.336556
    North_Bounding_Coordinate: 38.028262
    South_Bounding_Coordinate: 37.463803

  3. What does it look like?

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

    Calendar_Date: March 2002
    Currentness_Reference: ground condition

  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?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • G-polygon (2)

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

      The map projection used is Lambert Conformal Conic.

      Projection parameters:
      Standard_Parallel: 36.766667
      Standard_Parallel: 37.966667
      Longitude_of_Central_Meridian: -78.500000
      Latitude_of_Projection_Origin: 36.333333
      False_Easting: 11482916.666667
      False_Northing: 3280833.333333

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.000351
      Ordinates (y-coordinates) are specified to the nearest 0.000351
      Planar coordinates are specified in survey feet

      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: 0.000003
      Altitude_Encoding_Method:
      Explicit elevation coordinate included with horizontal coordinates

  7. How does the data set describe geographic features?

    Pavement

    SHAPE_Length
    Length of feature in internal units. (Source: ESRI)

    Positive real numbers that are automatically generated.

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    OBJECTID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    ObjectID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Shape_Length
    Length of feature in internal units. (Source: ESRI)

    Positive real numbers that are automatically generated.

    Shape_Area
    Area of feature in internal units squared. (Source: ESRI)

    Positive real numbers that are automatically generated.

    SHAPE
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    CLASS_ID

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?

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

    Tom Brockenbrough
    Accomack County Department of Planning
    GIS Coordinator
    23282 Courthouse Avenue
    Accomac, VA 23301
    USA

    757.787.5797 (voice)
    757.789.3116 (FAX)
    tbrockenbrough@co.accomack.va.us

    Hours_of_Service: 9am - 5pm, M-F

Why was the data set created?

Provide vector format depiction of road edge of pavement.

How was the data set created?

  1. From what previous works were the data drawn?

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

    Date: April 2002 (process 1 of 5)
    Acquired Virginia Base Mapping Project 2002 Aerial Photography from Accomack County.

    Person who carried out this activity:

    WorldView Solutions
    c/o Jamie Christensen
    Lead Project Coordinator
    101 South 15th Street - Suite 104
    Richmond, VA 23219

    804.915.7628 (voice)
    804.545.0792 (FAX)
    jamie@worldviewgis.com

    Hours_of_Service: 8-5, M-F
    Date: May 2002 (process 2 of 5)
    Digitized planimetric feature layer boundaries, using known features on 2002 VBMP Aerial Photos.

    Date: July 2002 (process 3 of 5)
    Cleaned and applied topology rules to digitzed planimetric features.

    Date: August 2002 (process 4 of 5)
    Where applicable, applied attributes categorizing and organizing planimetric features.

    (process 5 of 5)
    Dataset copied.

    Data sources used in this process:

    • \\WVS1\Clients\Accomack\Current\Data\Planimetrics.mdb

  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?

  2. How accurate are the geographic locations?

  3. How accurate are the heights or depths?

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

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

How can someone get a copy of the data set?

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

Access_Constraints:
Access is granted on a case-by-case basis by the Accomack County Department of Planning.
Use_Constraints:
Data is for planning purposes only - data should not be used without the express permission of the Accomack County Department of Planning.

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

    Accomack County Department of Planning
    c/o Tom Brockenbrough
    GIS Coordinator
    23282 Courthouse Avenue
    Accomac, VA 23301
    USA

    757.787.5797 (voice)
    757.789.3116 (FAX)
    tbrockenbrough@co.accomack.va.us

    Contact_Instructions:
  2. What's the catalog number I need to order this data set?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 04-Apr-2007
Metadata author:
Accomack County Department of Planning
c/o Tom Brockenbrough
GIS Coordinator
23282 Courthouse Avenue
Accomac, VA 23301
USA

757-787-5797 (voice)
757.789.3116 (FAX)
tbrockenbrough@co.accomack.va.us

Contact_Instructions:
tbrockenbrough@co.accomack.va.us Tom Brockenbrough

GIS Coordinator

Accomack County Department of Planning

P.O. Box 686

23282 Courthouse Avenue

Accomac, VA 23301

757.787.5797

fax

Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:

Generated by mp version 2.8.6 on Wed Apr 04 10:06:38 2007