Ohio Valley Regional
Development Commission is designated as a Regional Data Center affiliated with
the Ohio Department of Development’s Office of Policy Research and Strategic
Planning, The OVRDC receives all census data, publications and special reports
from State and Federal agencies.
OVRDC maintains comprehensive databases of
national and state demographic, economic, environmental, and infrastructure
The main sources of this information are from the
U.S. Census Bureau, Ohio Department of Job and Family Services, and other
federal, state, and local sources.
This information is maintained in electronic and
Additional resources that OVRDC maintains are
selected research reports and studies on the region and its communities.
Also OVRDC maintains an all-inclusive GIS
database of the region from varies sources.
OVRDC delivers certain statistical data related
to the region on our website: www.ovrdc.org
Additionally, the OVRDC processes requests for
Census data from:
Private sector businesses and industries
Ohio Valley Regional
Development Commission maintains a geographic information system (GIS)
and a global positioning system (GPS).
This GIS/GPS system is used to create an assortment of maps
and conduct a variety of analysis projects.
What is GIS
(Geographic Information System)?
GIS is mapping software that links information about where
things are with information about what things are like.
Simply put, a GIS combines
layers of information about a place to give you a better understanding of that
place. The power of a GIS over
paper maps is your ability to select the information you need to see according
to what goal you are trying to achieve. A full GIS,
or geographic information system, requires hardware, software, data, trained
users, and sound analysis methods for interpreting the results generated by the
is organized by Data Themes or Layers. Most GIS
databases contain many “layers” - individual graphic data files with fields of
attribute data, some of which may serve to link it with other files.
Some of the data layers that
OVRDC has are: aerial photography, U.S.G.S. topographic maps, U.S. Census Tiger
files, county roads, highways, parks, forest, boundaries, rivers, lakes,
traffic analysis, land analysis, biological, geological, natural hazard,
groundwater, oil and gas wells, and much more.
OVRDC maintains a variety of
data on the 12 counties it serves.
OVRDC has a variety of
records that cover the 12 county region. OVRDC’s data has come from many
different sources. For example: US Geological Survey (USGS), US Department of
Agriculture (USDA), Environmental Protection Agency (EPA), US Census Bureau, US
Department of Transportation (USDOT), US Department of Interior, Ohio Department
of Transportation (ODOT), Ohio Department of Natural Resources (ODNR), Ohio GIS
Support Center, Ohio Valley Regional Development Commission, Public Utilities
Commission of Ohio (PUCO), Federal Emergency Management Agency (FEMA), county
offices, and private firms.
OVRDC has received GIS data
from several county GIS’s offices through the years. Such data includes: road
centerlines, pavement, ½, 1, 2, & 4 ft. resolution DOQQs, parcels, structures,
boundaries, contours, soils, schools, and zoning layers.
OVRDC through the years has
created several GIS layers of its own for different projects.
OVRDC has the capability
through the different software extensions to create and maintain a
wide variety of data.
(Global Positioning System)?
Global Positioning System (GPS) is a space-based radio-positioning and time
transfer system constellation of 24
satellites developed, launched, and
maintained by the United States Air Force that provides positioning, timing, and
navigation signals free of charge to both military and civilian users worldwide.
GPS satellites orbit the earth every 12 hours, emitting
continuous navigation signals that enables properly equipped users to determine
precise time and velocity and worldwide latitude, longitude and altitude to
within a few meters. In addition to the satellites, the system consists of a
worldwide satellite control network and GPS receiver units that acquire the satellite's
signals and translate them into precise position and timing information. The
signals are so accurate that time can be figured to much less than a millionth
of a second, velocity can be figured to within a fraction of a mile per hour,
and location can be figured to within a few sub-meters or better with the right
equipment. The receivers do not send out any signals, or communicate back to the
satellites. In addition, the FAA’s Wide Area Augmentation System (WAAS) has
become a critical component of a seamless satellite navigation system which
improves the accuracy, availability, and integrity of
GPS has proven beneficial in the
commercial and civil markets for transportation, surveying and rescue operations
and are used to locate features such as manholes, fire hydrants, bridges, road
centerlines, buildings, and etc.
Ohio Valley Regional Development Commission has
entered the Global Positioning System (GPS)
world by purchasing a Trimble GeoExplorer GeoXT GPS
unit with ESRI ArcPad 6.0.3, Trimble’s GPScorrect, and Trimble’s GPS Pathfinder Office Software. The GeoXT is a
receiver that can track up to 12 satellites, with real time corrections
from a satellite-based augmentation system (SBAS)
like WAAS1 or EGNOS2. The GPS
receiver and antenna are built into the handheld computer that is cable-free The
GeoXT is a very powerful handheld unit that helps extend OVRDC’s GIS/GPS