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Arkansas Centerline File (ACF) Program Grant
Background Information
During the 85th Regular Session of the Arkansas General
Assembly, the Arkansas Geographic Information Office
(AGIO) was called upon to address several policy concerns.
One issue discussed in the Legislative Committee on
Education Facilities was the need to use physical addresses
to locate homes of school children respective to school
buildings and school district boundaries. As the analysis
was performed, it became clear that the unavailability
of accurate data (statewide) caused the information
to be of little effective use to the Committee.
As a result of collaboration between the AGIO, the
Arkansas State Land Information Board (ASLIB), the Chief
Information Officer, the Governor’s office and
the Legislature, Act 1800 of the 85th Regular Session
was passed. It effectively “seeded” the
development of this one time grant program to create
accurate, statewide road centerline datasets. In order
to maximize this seed money, the ASLIB further developed
this grant program with the overall goal of getting
road centerline data created for as many counties in
the state as possible.
Arkansas Centerline File (ACF) Program
Road Centerline File means a Geographic Information
System (GIS) data set that contains road networks, road
name and address range information, and various other
elements to enable address matching and geocoding. Geocoding
is the process of interpolating a geographic location
using a physical address relative to a standard reference.
A road centerline file makes an ideal reference. The
AGIO identified a number of sources (at various levels
of government) creating centerlines. In an effort to
coordinate this activity and reduce duplication of effort,
the AGIO developed the Arkansas Centerline File (ACF)
Program in 2004 . The ACF Program is designed to compile
a standardized statewide road centerline GIS map data
layer that can be used by all levels of government,
the private sector and individuals. The ACF Program
is unique in that the entire dataset is built from numerous
(county) datasets using a common standard. Additionally,
the ACF Program provides for technology transfer so
data maintenance can be accomplished at the local level.
The State of Arkansas does not create or develop Arkansas
Road Centerline File Program data. The State simply
integrates the various local sources into a common format
across jurisdictional boundaries. The ACF Standard is
a State Rule and Regulation.
Typically, county 9-1-1 offices and other local government
entities are the source for road centerline data. The
AGIO assists local government agencies with many of
the technical facets of developing the data or having
the data developed by a contractor. The ACF database
is available to internet users through the Arkansas'
GIS data clearinghouse (GeoStor) for no fee. The data
are shareable with federal, state, and local agencies,
as well as private industry, and individuals. The ACF
Program enables all users access to standardized local
level road centerline GIS map data and promotes coordination
to reduce duplicative efforts, thereby reducing the
overall cost of data development and maintenance to
the citizens of Arkansas.
Unfortunately, the counties of Arkansas have limited
resources available to invest in the creation of the
road centerline data. At the current rate and without
additional resources available to accelerate development,
the AGIO forecasts statewide data may not be completed
until after the year 2010. The Arkansas Road Centerline
File Grant was created to close that gap and accelerate
completion of road centerline data statewide.
Grant Documents and Resources
(all files are in Adobe .pdf format)
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