bggenexp

Frequently-anticipated questions:

• What does this data set describe?
  1. How should this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
  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 data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

Title: bggenexp

Abstract:

This project consists of photogrammetrically produced planimetric mapping, DEM creation, and digital color orthophotography of the State of West Virginia. The W.V. state plane system has two cartographic zones, north and south. The aerial photography used for this project was captured at a negative scale of 1" = 2400' in the spring of 2003. This data set consists of planimetric data for a specific GIS feature class. The format of the planimetric GIS data is in the ESRI personal geodatabase (Microsoft AccessT). There are two geodatabases, one for the north state plane zone and the second for the south. Both geodatabases have a single feature dataset, Plan_Features that contains the spatial reference. Within the feature dataset are 18 feature classes that correspond to the project data content. The data source of the GIS planimetric data is tiled (50,000 X 50,000) MicroStation CAD data. The tiled data was appended to create seamless GIS data sets. All planimetric features were captured in conformance with the Spatial Data Standards for Facilities, Infrastructure and Environment [SDSFIE].

Supplemental_Information:

© West Virginia Statewide Addressing and Mapping Board. All rights reserved. For 9-1-1 use only except as authorized in writing by the West Virginia Statewide Addressing and Mapping Board. No other use or distribution without the express written permission of the West Virginia Statewide Addressing and Mapping Board, Under Penalty of Law.

1. How should this data set be cited?

   The West Virginia Statewide Addressing and Mapping Board, 20040630, bggenexp: West Virginia Statewide Addressing and Mapping Board, Charleston, WV.

   Online Links:

   • \\SEMAPHORE_HILL\Data\SAMB data\FINAL planimetrics\Shapefiles\Shapefiles_SDSFEIS\South\bggenexp.shp

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -82.759660

   East_Bounding_Coordinate: -78.837977

   North_Bounding_Coordinate: 42.890075

   South_Bounding_Coordinate: 37.184367

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: 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):

      • Entity point (829222)

   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: 4702

      Lambert_Conformal_Conic:

      Standard_Parallel: 37.483333

      Standard_Parallel: 38.883333

      Longitude_of_Central_Meridian: -81.000000

      Latitude_of_Projection_Origin: 37.000000

      False_Easting: 1968500.000000

      False_Northing: 0.000000

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.004096
      Ordinates (y-coordinates) are specified to the nearest 0.004096
      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:

7. How does the data set describe geographic features?

   bggenexp

   FID

   Internal feature number. (Source: ESRI)

   Sequential unique whole numbers that are automatically generated.

   Shape

   Feature geometry. (Source: ESRI)

   Coordinates defining the features.

   OBJECTID

   AREA

   PERIMETER

   BGGENEXP_

   BGGENEXP_I

   DATALINK

   BUILDNG_ID

   MAP_ID

   META_ID

   MEDIA_ID

   COORD_ID

   STRUCTNAME

   STR_STAT_D

   TOWR_USE_D

   STR_TYPE_D

   STR_USE_D

   STR_CND_D

   DESIGNCODE

   PRESNTCODE

   HEATTYPE_D

   COOLTYPE_D

   NO_OCCUP

   AREAINSIDE

   AREAFLOOR

   AREAUSABLE

   AREAPEROCC

   AREAGNDCOV

   AREAS_U_D

   STRUCTHGHT

   HEIGHT_U_D

   FLOOR_ELEV

   ELEV_U_D

   PORTBL_WGT

   WEIGHT_U_D

   NO_LEVELS

   BUILT_DATE

   OCCUP_DATE

   MOVIN_DATE

   INSPC_DATE

   DEMOL_DATE

   ADDRESS_ID

   DSTRICT_ID

   LANDUSE_ID

   INSTLN_ID

   PROJECT_ID

   NARRATIVE

   USER_FLAG

   STR_USE2_D

   AREA_SIZE

   AREA_U_D

   PERIM

   PERIM_U_D

   VEHWEI_ID

   STR_MAT_D

   FACIL_ID

   GRID_VALUE

   RRDSTAT_ID

   FUT_STAT_D

   COORD_X

   COORD_Y

   COORD_Z

   OWNER_ID

   SUR_CRS_ID

   RIVER_MILE

   VALUE_CONT

   A_COST

   ISR_CODE_D

   BUILDNG_NO

   FACIL_NO

   DATE_ACQRD

   PRV_COST

   DATE_PRV

   POLYGONID

   SCALE

   ANGLE

   POLYGONID_

   SCALE_1

   ANGLE_1

   POLYGONID1

   SCALE_12

   ANGLE_12

   Entity_and_Attribute_Overview:

   Spatial Data Standard for Facilities, Infrastructure, and Environment (SDSFIE)

   The data structure of the CADD and GIS data components of this project are based on a data model developed and published by the US Army Corps of Engineers: Spatial Data Standard for Facilities, Infrastructure, and Environment (SDSFIE). The following description of the SDSFIE data model is modified after information published on the website of the CADD/GIS Technology Center. <http://tsc.wes.army.mil/products/TSSDS-TSFMS/tssds/html>

   The Computer-Aided Design and Drafting (CADD)/Geographic Information System (GIS) Technology Center for Facilities, Infrastructure, and Environment developed SDSFIE. The SDSFIE have focused on the development of graphic and nongraphic standards for GIS implementations at military and other US Government organizations.

   SDSFIE provides a standardized grouping of geographically referenced (i.e., geospatial) features (i.e., real-world features or objects depicted graphically on a map at their real-world location (i.e., coordinates). Each geospatial feature has an attribute table containing pertinent data about the geospatial feature.

   SDSFIE is a nonproprietary GIS data content standard designed for use with the predominant commercially available off-the-shelf GIS and CADD software and relational database systems (e.g., Oracle and Microsoft Access). This design has become the de facto standard for GIS implementations in Federal, State, and local government organizations; public utilities; and private industry throughout the United States and the World.

   The SDSFIE data model consists of five basic levels of hierarchy: Entity Sets, Entity Classes, Entity Types (includes Entities), Attribute Tables, and Domain Tables.

   Entity Set. Entity Sets are the highest level of the SDSFIE data model structure and represent data organized at the project level. Entity Sets are broad, generalized themes containing groupings (called Entity Classes) of features (i.e., graphic objects (called Entity Types) which can be depicted at their actual geographic locations on a map) and related "graphic" attribute data (i.e., data (information) about the feature which is stored in a database table).

   Entity Class. Entity Classes comprise the next level of the hierarchical SDSFIE data model structure. Entity Classes contain groupings of similar features (called Entity Types) and related "graphic" attribute data. Each Entity Class is equivalent to a separate map or drawing file. For example, each attribute table name in the transportation_vehicle Entity Class begins with "trveh", where "tr" represents the Entity Set name (transportation) and "veh" represents the Entity Class name (vehicle).

   Entity Type. Each Entity Class contains one or more Entity Types. An Entity Type is the logical name assigned to a graphic feature (i.e., an object that can be graphically depicted on a map or drawing). Each Entity Type has a corresponding "graphic" attribute table containing specific information about the Entity Type.

   SDSFIE Attribute Table. The SDSFIE Attribute Table is a relational database table containing data, or information, about a specific SDSFIE entity. Since SDSFIE Attribute Tables are linked directly to a graphic entity (using the electronic tools provided with CADD and The SDSFIE has been designed for use with relational database management system (RDBMS) software. RDBMS software provides a means of managing the related data contained in one or more database tables. Examples of RDBMS software include Oracle (Oracle Corporation) and Access (Microsoft Corporation), SQLServer, and Informix. GIS software) they are classified as "graphic" (i.e., SDSFIE) attribute tables.

   Domain Table. Domain tables contain standardized lists of permissible values for specific attributes. They provide a predefined finite set of allowable values, which may be enlarged by each user. Included are tables of units of measure, types, styles, status, names, methods, materials, dispositions, sources, dimensions, data, classes, building numbers, etc. The user can add to these lists and range domains installation-specific values as needed.

   The SDSFIE hierarchy levels of the data sets of this project correspond to the project feature content.

   Entity_and_Attribute_Detail_Citation:

   WVSAMB Project Plan Procedures Manual for Advanced Photogrammetric Mapping Services for Statewide Enhanced 9-1-1 and Rural Addressing and Additional E 9-1-1 Addressing Services, July 10, 2003.

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • The West Virginia Statewide Addressing and Mapping Board

2. Who also contributed to the data set?

   This data set was created for the West Virginia Statewide Addressing and Mapping Board by BAE SYSTEMS ADR, Inc.

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

   Craig A. Neidig
   West Virgina Statewide Addressing and Mapping Board
   Chair WVSAMB
   1124 Smith Street
   Charleston, WV 25301
   USA
   

   304-558-4218 (voice)
   304-558-4963 (FAX)
   cneidig@gis.state.wv.us
   

Aerial survey of the state of West Virginia

1. From what previous works were the data drawn?

   GPS Ground Control (source 1 of 3)

   T3 Global Strategies, Inc., 20031013, GPS Photo Control Survey for the State of West Virginia: T3 Global Strategies, Inc., Bridgeville, PA.

   Type_of_Source_Media: CD-ROM

   Source_Contribution:

   To supplement the airborne GPS control network a total of 153 photo control points were captured as well as an additional 54 quality assurance control points that were incorporated in the quality assurance testing of the aerotriangulation. All horizontal and vertical control was prepared under the supervision of State of West Virginia licensed Professional Land Surveyors.

   Aerial Photography (source 2 of 3)

   Photo Science, Inc., 20030630, Aerial Imagery Acquisition of the State of West Virginia: Photo Science, Inc., Lexington, KY.

   Type_of_Source_Media: filmstrip

   Source_Scale_Denominator: 28800

   Source_Contribution:

   Aerial photography was acquired using a flight design that included a total of 8612 exposures in 440 North-South oriented flight lines and 20 cross-tie lines. Aerial photography was exposed on Kodak Color Aerial 2 film 2444. Aerial photogaphy was supplemented with the simultaneous acquisition of airborne GPS data, which captured the ground coordinate for the nadir point of each photograph. Aerial photography was exposed at an altitude of 14400' above mean terrain yielding an approximate scale of 1:28800.

   Analytical aerotriangulation (source 3 of 3)

   ADR, BAE SYSTEMS , 20040130, Analytical aerotriangulation: BAE SYSTEMS ADR, Mt. Laurel, NJ.

   Type_of_Source_Media: CD-ROM

   Source_Contribution:

   Softcopy aerotriangulation was performed utilizing the airborne GPS data, GPS ground control and image coordinate measurements allowing the direct computation of the exterior orientation parameters for each image of the project.

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

   Date: 06-Jun-2003 (process 1 of 5)

   Aerial photography was acquired using a flight design that included a total of 8612 exposures in 440 North-South oriented flight lines and 20 cross-tie lines. Aerial photography was exposed on Kodak Color Aerial 2 film 2444. Aerial photogaphy was supplemented with the simultaneous acquisition of airborne GPS data, which captured the ground coordinate for the nadir point of each photograph. Aerial photography was exposed at an altitude of 14400' above mean terrain yielding an approximate scale of 1:28800.

   Person who carried out this activity:
   

   BAE SYSTEMS ADR
   c/o Sandra Elfreth-Howery
   Project Manager
   124 Gaither Drive
   Mt. Laurel, NJ 08054
   USA
   

   856-866-9700 (voice)
   856-866-7800 (FAX)
   s.elfreth.howery@adrinc.com
   

   Hours_of_Service: 0800-1700

   Data sources produced in this process:

   • Aerial Photography

   Date: 30-Jan-2004 (process 2 of 5)

   Softcopy aerotriangulation utilizes the GPS ground control and image coordinate measurements which are run through bundle block adjustment software computing the exterior orientation parameters for each image of the photogrammetric project. The original aerial film was scanned utilizing a Socet Set DSW600 precision photogrammetric scanner at a resolution of 12.5 microns. Using these scans the aerotriangulation process employs a rigorous mathematical model which detects measurement errors, and corrects for systematic image distorion, film shrikage, atmospheric refraction and camera lens distortions. The final bundle adjustment results are inspected to ensure that the RMSE meets the required 1 part in 10000.

   Person who carried out this activity:
   

   BAE SYSTEMS ADR
   c/o Sandra Elfreth-Howery
   Project Manager
   124 Gaither drive
   Mt. Laurel, NJ 08054
   USA
   

   856-866-9700 (voice)
   856-866-7800 (FAX)
   s.elfreth.howery@adrinc.com
   

   Hours_of_Service: 0800-1700

   Data sources used in this process:

   • GPS Ground Control
   • Aerial Photography

   Data sources produced in this process:

   • Analytical Aerotriangulation

   Date: 30-Jun-2004 (process 3 of 5)

   The procedure utilized for the collection of planimetric data; i.e. transportation, buildings, and hydrography, is primarily manual stereo photogrammetric compilation. Softcopy aerotriangulation is used in the generation of stereo pairs of aerial imagery. These stereo pairs are therefore geo-referenced and used in a softcopy stereo environment for the purposes of collecting features in a digital manuscript. The three dimensional environment is used primarily to extract the elevation of features, but its also useful for the interpretation of features from the imagery. The photogrammetric technician is informed of the job specifications and collects the data accordingly. Upon completion of data collection within the stereo pair, QC procedures are performed to insure completeness, connectivity, and proper identification of features. The manuscript file is then translated to an appropriate database useful to the client.

   Person who carried out this activity:
   

   BAE SYSTEMS ADR
   c/o Sandra Elfreth-Howery
   Project Manager
   124 Gaither Drive
   Mt. Laurel, NJ 08054
   USA
   

   856-866-9700 (voice)
   856-866-7800 (FAX)
   s.elfreth.howery@adrinc.com
   

   Hours_of_Service: 0800-1700

   Data sources used in this process:

   • Aerial Photography
   • Analytical Aerotriangulation

   Data sources produced in this process:

   • Geodatabase

   Date: 30-Jun-2004 (process 4 of 5)

   The SAMB required its Project Management Team (Michael Baker Jr, Inc.) to perform independent quality assurance in order to certify final product acceptance. Baker used NSSDA automated and visual tests of attribute accuracy, logical consistency, completeness, and adherence to SAMB project data specifications.

   Person who carried out this activity:
   

   Joseph Seppi C.M.S.
   Michael Baker Jr., Inc
   Special Projects Director
   5088 W. Washington St.
   Charleston, WV 25013
   USA
   

   304-769-2115 (voice)
   304-769-0822 (FAX)
   jseppi@mbakercorp.com
   

   Data sources used in this process:

   • Geodatabase

   Data sources produced in this process:

   • Independant Quality Assurance Report

   (process 5 of 5)

   Metadata imported.

   Data sources used in this process:

   • I:\Mapping Delivery FINAL\GDB_metadata_S.xml

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

1. How well have the observations been checked?

   The accuracy of the ground control and airborne GPS data is confirmed by the evaluation of the results of the analytical bundle adjustment. The residuals of the final adjustment ensured compliance with NSSDA standards. During the scanning of the original aerial film, the image histogram for each frame is carefully examined to ensure that the image has been scanned so that the minimum and maximum brightness values are captured to eliminate any loss of detail due to saturation of dark or light areas. The planimetric data has a <9.79 ft. horizontal accuracy at 95% confidence level, National Standard for Spatial Data Accuracy (NSSDA), for a 2.0 foot Ground Resolution Distance (GRD). Horizontal accuracy determined as 1.7308 times the RMSE circular error(1.4142 x 4' = 5.657'). This requirement will not be applicable in areas where the ground is obscured on the aerial photography by foliage, prevalent smoke, or dense shadow.

2. How accurate are the geographic locations?

   The planimetric data has a <9.79 ft. horizontal accuracy at 95% confidence level, National Standard for Spatial Data Accuracy (NSSDA), for a 2.0 foot Ground Resolution Distance (GRD). Horizontal accuracy determined as 1.7308 times the RMSE circular error(1.4142 x 4' = 5.657'). This requirement will not be applicable in areas where the ground is obscured on the aerial photography by foliage, prevalent smoke, or dense shadow.

3. How accurate are the heights or depths?

   All DEM data will meet a vertical accuracy of +/- ten (10) feet at the 95% confidence level consistant with NSSDA standards. This requirement will not be applicable in areas where the ground is obscured on the aerial photography by foliage, prevalent smoke, or dense shadow.

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

   All files are visually inspected for completeness to ensure that no gaps or misplacement exists in the data. The files have been checked to ensure that the boundary and the content has been covered in its entirety.

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

   All files are inspected by the Production Manager to ensure that they conform to the specified file naming conventions, all files load in their correct geographic position, all files conform to the project specifications for file standard and content.

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

Access_Constraints:

Until further notice access is limited to the WV SAMB and its consultants, 55 counties of West Virginia, RTI, USDA-NRCS, and West Virginia Division of Highways. Each of these agencies is bound by the terms of contractual agreements stating the manner in which data may be accessed. None of these agencies may distribute these data to a 3rd party without the expressed written permission of the West Virginia Statewide Addressing and Mapping Board.

Use_Constraints:

The data represents the results of data collection/processing for a specific WVSAMB E 9-1-1 project, and indicates the general existing conditions. As such, it is only valid for its intended use, content, time, and accuracy specifications. The user is responsible for the results of any application of the data for other than its intended use.

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

   West Virginia Statewide Addressing and Mapping Board
   1124 Smith Street
   Charleston, WV 25301
   USA
   

   304-558-4218 (voice)
   304-558-4963 (FAX)
   cneidig@gis.state.wv.us
   

   Hours_of_Service: 0800-1600, ET

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

   ESRI Personal Geodatabase

3. What legal disclaimers am I supposed to read?

   To be determined. Law Enforcement Sensitive. Not for distribution.

4. How can I download or order the data?
   • Availability in digital form:

     Data format:	ESRI Shape File Size: 1319.010
     Media you can order:	TBD (format TBD)

   • Cost to order the data: TBD as of 2/2004

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

   TBD as of 2/2004

Dates:

Last modified: 16-Jun-2006

Metadata author:

Sandra Elfreth-Howery
BAE SYSTEMS ADR
Project Manager
124 Gaither Drive
Mt. Laurel, NJ 08054
USA

856-866-9700 (voice)
856-866-7800 (FAX)
s.elfreth.howery@adrinc.com

Metadata standard:

FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

Metadata extensions used:

• <http://www.esri.com/metadata/esriprof80.html>