| |
|
Introduction
| Purpose
| Maps
| Scope
| Finding the Data | Summary
Where is the Data?
Identifying Component Resources
Data resources necessary to conduct the project were
not easy to come by because no single government entity
within the state was responsible for maintaining location-based
information on all the others.
One governmental unit might have very good location
data for each of the hospitals serving the state, but
have no information about the locations of schools.
This introduced quite a challenge just in collecting
a baseline of information to begin connecting government
services with a location.
However, by taking advantage of geographic information
technology, an asset management system could be built
for governmental resources.
For the purposes of this project, it was determined
that a network consumer would be any organization using
the state network for delivery of government services
or healthcare. This covered a broad scale of data sets,
which presented one of many challenges. It also covered
all corners of the state near and far, another significant
challenge.
Two primary categories were chosen as relation points
within the project framework:
Existing and Potential Network Consumer Categories
Existing Network Consumers (ENCs)
These are organizations utilizing the existing network
services provided by the Arkansas
Department of Information Systems. By visualizing
their locations, systems and services could be better
managed.
Potential Network Consumers (PNCs)
These are potential organizations which could utilize
network services provided by the Department of Information
Systems. By visualizing their locations relative to
current service points, opportunities for additional
connections could be identified and managed. This would
also provide opportunities for pooling consumers at
a single point of presence.
-
Education: Public Schools, Private Schools, Libraries,
Museums, Universities
-
Criminal Justice System: Jails, Courts, State Police,
County Sheriff, City Police
-
Health Care: Area Health Clinics, Hospitals
-
Social Services: Employment Security Division Offices,
Department of Human Services Offices, Community
centers
-
Other Government Services: Fire Departments, City
Hall, Game and Fish Commission, Revenue Offices,
Military Installations
Five Essential Facets to the Project
-
Capture location data for all ENCs
-
Capture location data for all PNCs
-
Organize all ENCs, PNCs and the Network into one
geographic system
-
Design an online interface to the system
-
Serve the system online through a browser
The ENCs were stored in a billing database at the Department
of Information Systems. The database was used exclusively
to support the billing process and was not readily usable
as an asset management tool. The billing database did
not have a geographic component other than mailing address
information. The project team determined the billing
database represented the best single source of information
about the ENCs supported through the network. Formatting
issues represented the only obstacle to using the table
in an address geocoding engine to address match and
geocode the database.
The Telecommunications Engineering staff at the agency
developed a mapable design that would support geocoding
and also future attribute queries; for example, a query
for all Department of Health offices that have T1 access,
etc. After the table design was completed, the entire
billing database was processed through the address geocoding
engine to generate coordinates for the data. The relative
location of all the circuits could then be displayed.
During the geocoding process, a fallback to zip code
centroid option was selected, so for records with no
street address match a coordinate was placed on the
zip centroid. Over 2,900 records could be mapped and
displayed for the entire state showing ENCs locations.
For the first time policy makers and executive management
could visualize where resources had been allocated and
also where other areas were underserved.
This portion of the project was accomplished with relative
ease; however, the coordinate locations of the ENCs
were not reliable because of the geocoding process.
For records that could not be geocoded to a street address
location, the coordinate placed on the zip centroid
meant location data could be incorrect by several miles.
The team needed a way to validate and refine the ENCs
coordinates across the state.
The PNC data prior to this point was not stored anywhere
centrally, nor organized in any mapable fashion. Although
an agency director might have precise information about
the location of the assets under management, they would
not have location data about all government assets within
the state. Capturing all the unorganized data represented
a significant exercise in address data collection and
organization. For example, a rural water association
would not necessarily be managed by a state agency and
its location not stored any single place.
However, as the e-government wave builds within Arkansas,
it may be possible to furnish the water association
the capability to report monitoring information back
to the regulatory agencies such as the Department of
Health. The reporting could be handled through e-mail,
a web browser, or other network interface. However,
in order to engineer this connectivity, the network
designers must account for its location in relation
to existing infrastructure. These and many other potential
users needed to be identified and located. After the
data collection task was accomplished, this data was
also parsed through the address gecoding engine to provide
coordinate locations.
Introduction
| Purpose
| Maps
| Scope
| Finding the Data | Summary
|