Pinellas County Supervisor of Elections- GIS System
SOE Uses for GIS System
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Redistricting – Creating new precinct lines after each census
Annexations – Updating census block layer to reflect municipal boundary changes
Maps – Create district maps for voters, candidates, polling locations, and other various maps.
Create ESRI shapes files for election night reporting.
Imports – Street Index from tiger lines files are imported into our Voter Registration System.
GeoCoding- Ability to Geocode voters, polling places, or other points of interest onto the map.
Oblique Imagery/Aerial Photography- Currently use Google maps to display polling place
locations and driving directions, interested in possible uses for additional imagery.
SOE’s Current GIS System
MapInfo Professional - a Microsoft Windows based mapping and geographic
analysis application
Features
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NF-RB 10/05/10
Data Access - MapInfo Professional provides built-in support to access and view a
variety of data formats directly. This means you will be able to view your Microsoft Excel,
Microsoft Access or database data, such as Oracle, Microsoft SQL Server as well as
many other file formats, directly out of the box. You can also view images of virtually any
format.
Data Creation & Editing - MapInfo Professional provides many CAD data creation and
editing tools as well as the ability to edit your tabular data such as values and names.
This means you don’t have to switch between applications. Make all your changes for
maps and data in one application and save time and effort.
Display -Map display options are one of the great strengths of MapInfo Professional. You
can instantly shade/change style or mark territories (using any symbol, graduated
symbols, charts or graphs), boundaries, highways, fiber lines or points based on any
tabular data values through a simple wizard. You can also aggregate values using
statistical or any math functions to associate a symbol or a color to a point or a region
based on a calculated value. For example, shade the sales territories based on number
of customers. Trends based on geography reveal themselves, patterns become clear and
better decisions with impact are imminent.
Data & Map Publishing –MapInfo has the ability to export data to any format, to
publishing large maps with legends and charts, MapInfo Professional seamlessly
integrates across applications. In addition, MapInfo Professional is Web-enabled. Publish
static or interactive maps through easy-to-use wizards.
Pinellas County Supervisor of Elections- GIS System
TigerUS –is a program designed to integrate the latest TIGER/Line Files with the
existing GIS Base Map.
Features
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Maintain center street line files with TIGER topology
Create blocks, tracts, etc. that share the same geometry as local data.
Enhanced data for redistricting election precincts
Geocode data using ZIP5 as an attribute of the street segment.
Enhanced data for GPS driven automated vehicle location
Populate map enabled web sites with data whether serving up GIS or displaying maps for
your end-users
Link the new demographics from Census data to enhanced TIGER based geography
Add new streets or entire sub-divisions
MapEdit/GeoAuthor – Is a tool used to edit the TIGER/Line Files and attributes
Features
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The ability to change the name of a street and to change the attributes assigned to a
street which includes address ranges and block attributes which hold district information
and precinct information.
The ability to add a segment, create intersections, or retire TLID.
The ability to shape segments to follow the center of a street.
The ability to use diagnostic tools to make sure data information such as zip codes and
addresses are correct.
The ability to build layers that converts either the original or enhanced TIGER/Line Files
into mapped layers for day-to-day use.
The ability to divide a TIGER database into smaller units of geography or restore the
units to a single database.
Allows the user to change the graphical representation for features that are edited,
verified, or node combined.
GeoElections – Is an application that interacts with our Voter Registration Database
Features
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NF-RB 10/05/10
Interoperability with voter registration system through this programmatic electronic data
transfer from
GeoElections, GIS to street index with complete or transactional update options.
GeoCoding Engine uses your map data to put your voters on your map.
Legal Descriptions in terse, medium or verbose provide walking instructions that define
precincts, wards and other jurisdictional boundaries as required.
Calculates and creates maps of precinct splits for inspection and redesign. Tabulates
voters to census blocks for use with redistricting to assemble blocks into precincts.
GeoPackager builds a menu interface for distributing your data (streets, precincts, polling
sites, congressional districts, and others) with a free map viewer all of which runs off
distribution CD’s or copied to local disk to run at the speed of the local computer.
Pinellas County Supervisor of Elections- GIS System
Staff Resources –
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NF-RB 10/05/10
SOE IT Manager oversees GIS system and assists with new applications.
One Department Computer Support Specialist works to maintain the GIS system, time
spent maintaining system varies based on municipal annexation activity, street index
maintenance, district map creation, and redistricting after each census. During nonredistricting periods the time dedicated to the GIS system can range from five hours per
week up to forty hours per week. The redistricting process could require the dedication of
eighty or more hours per week for several weeks.