VBMP RCL (Eastern Shore extract)
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The ongoing goal of the VBMP is to establish a consistent, seamless base and foundation for local and state government mapping systems (GIS) that will help all increase efficiency and reduce redundant efforts in developing these systems. The seamless VBMP base is critical to the effective and efficient delivery of wireless E-911 and many other government services and is a critical component in the development of spatial data guidelines and standards, supporting the cost-effective sharing of GIS data and expertise across the Commonwealth.
The Virginia Geographic Information Network (VGIN) has coordinated and manages the development of a consistent, seamless, statewide digital road centerline file with address, road name, and state route number attribution, as part of the Virginia Base Mapping Program (VBMP). The Road Centerline Program (RCL) leverages the Commonwealth's investment in the VBMP digital orthophotography and is focused on creating a single statewide, consistent digital road file. The RCL data layer is a dynamic dataset supported and maintained by Virginia's Local Governments, VDOT, and VGIN. VBMP RCL is extracted and provided back to local governments and state agencies in many geographic data sets every quarter.
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As of January 1, 2012, RCL geometry and attributes are public domain.
APPENDIX B
Virginia Geographic Information Network (VGIN)
Virginia Base Mapping Program (VBMP)
Geospatial Data Sharing
VGIN was established in 1997 in Virginia Code to "foster the creative utilization of geographic information and oversee the development of a catalog of GIS data available in the Commonwealth". One of the main core functions of VGIN according to the code is:
* Provide services, geographic data products, and access to the repository
Source: Virginia Code § 2.2-2026 and § 2.2-2027
Commonwealth wide GIS data initiatives require the active participation by local government entities. Many services and data products are readily available through the Virginia GIS clearinghouse and could not function without local government geospatial data input. These data sets are the source for data sharing between Local, State, Federal, and commercial geospatial entities through VGIN. The following programs or initiatives require the active participation by Virginia Local governments.
VBMP Road Centerlines (RCL):
The Road Centerline (RCL) dataset provides a consistent and seamless statewide digital dataset of all roads in the Commonwealth of Virginia. The purpose for the continued development of this dataset is to support the base mapping needs of state, regional, and local governments as well as to provide the most accurate representation of centerlines within the Commonwealth to as commercial entities and the general public. The purpose is to achieve a singular, consistent and maintainable base map dataset usable by all entities. The high quality of this product is available for use within a geographic information system (GIS) or a computer aided dispatch (CAD) / 911 system.
Address Point data is used to validate the RCL in locations where the RCL data set differs in geometry or attribution than local government centerline data. It is also used in the statewide geocoding web service as a separate locator to provide the end user a more accurate geocoded location.
Administrative Boundaries:
VGIN is leading an effort to improve Administrative Boundary datasets statewide through its Administrative Boundary Workgroup process. The hope is for the production and maintenance of an improved statewide administrative boundary dataset to be used for GIS purposes. There is also the possibility of streamlining response for statewide boundary updates to US Census. Boundary products that can be provided by localities through the RCL data submission process will help us initially to plan for and produce the best initial statewide dataset as possible and VGIN hopes updated boundary data through the submission process can feed maintenance and updates to a new statewide boundary product as changes warrant.
Cadastral:
Cadastral data (land ownership and tax parcels) comprise one of seven framework data layers identified in the National Spatial Data Infrastructurei. Parcel data is the responsibility of local governmental jurisdictions in the Commonwealth of Virginia. Over the past several decades local governments have been transitioning from paper maps to digital systems for maintaining parcel data. Most follow similar, but not identical systems, for mapping and identifying tax parcels. The framework initiative action team will work to improve the standardization and the quality of the cadastral framework data by adopting standards and best practices, and promoting cooperation, collaboration, and data sharing. The team will also assess the potential for compiling a statewide database of parcel data, similar to the road centerline program.
VGIN would like to formally request the GIS data below from your locality. Based on your locality’s data update cycle, you can provide GIS data updates to VGIN Monthly, Quarterly, Bi-Annually, or Annually. Please indicate the GIS data layers you are sharing with the Commonwealth of Virginia, file format, and data transfer method.
Jurisdiction: Jurisdiction Name
Submitted Geospatial Data Layers:
Jurisdiction Road Centerlines (RCL)
Jurisdiction Address Points
Jurisdiction Building Footprints
Jurisdiction Cadastral data (Parcels)
Jurisdiction Boundary
Jurisdiction Town Boundaries (If applicable)
Jurisdiction Hydrography
Submitted Data Format:
ESRI Shapefile
ESRI Geodatabase (Personal or File)
Submitted Delivery method:
VGIN FTP
Virginia Geospatial Clearinghouse
Locality FTP Server
i Executive Order 12906, published in the April 13, 1994, edition of the Federal Register, Volume 59, Number 71, pp. 17671-17674; and amended by Executive Order 13286, published in the March 5, 2003, edition of the Federal Register, Volume 68, Number 43, pp. 10619-10633. Framework layers are detailed in OMB Circular A-16. http://www.whitehouse.gov/omb/circulars/a016/a016_rev.html#4#4
Extent
West -76.129809 East -75.327705 North 38.014029 South 36.918951
Maximum (zoomed in) 1:5,000 Minimum (zoomed out) 1:150,000,000