Maricopa CountyElections DepartmentGeographic Information System

Gary Bilotta – Senior GIS Developer/Manager

Software

• SQL Server 2008 Spatial 64-bit on Windows Server 2008

• ArcGIS Server Basic Enterprise (Database) 64-bit (2)• ArcGIS Server Standard Enterprise (Web) (2)• ArcGIS ArcInfo Concurrent Use (6)• ArcGIS ArcView Single Use (5)

Software & Hardware Deployment

ArcGIS Desktop

GIS Production Database

Primary Node Secondary Node

*SQL Server Spatial*ESRI SDE

*SQL Server Spatial*ESRI SDE

Internet UsersArcGIS ServerWeb Server

Elections Production Database

*SQL Server Spatial*Replicates Address, Street and District datasets for locating voters and assigning voting districts

*Two load balance servers*Interactive Mapping Websites*ESRI ArcGIS Server

Development*Develop ArcGIS Server websites using Visual Studio 2010 ASP.net/Silverlight*Develop ArcGIS Desktop extensions using Visual Studio 2010 VB.net

Software & Hardware Deployment

SQL Server Spatial is utilized to run spatial queries without ESRI software. Using the SQL Server Geometry data type allows us to add/change SQL queries to current programs rather than adding more software layers.

Building Spatially Enabled Datasets

Election District Boundaries (cities, school districts, fire districts, etc…)

GIS datasets help us visualize and programmatically identify spatial relationships

Building Spatially Enabled Datasets

Street Centerlines and Address Points

Assigning Districts to Voters

When a voter registers or changes their address, districts are assigned based on the given address.

Spatial databases can make integrating GIS in existing

applications easier.

Assigning Districts to Voters

When a boundary changes shape or a boundary is added, triggers query the database for addresses that are affected. When complete, the voter records at those addresses are updated with the new district information. In addition, if an address point changes, any voters registered at it will also have their districts updated.

Election Setup

Determine which voting districts fall within a voting precinct for ballot creation.

SQL Spatial Query

Custom Desktop Applications

Address Editing

Customized ArcObjects/VB.net Extensions*Streets

*Addresses

Customized Editing Tools

Custom Desktop Applications

Custom tools to create election delivery routes

Custom Desktop Applications

Tools for generating election maps of an entire election.

Tools for creating maps showing if the voter is in the correct polling location & providing adjacent precinct polling places.

Custom Desktop Applications

Tools for generating election maps for use at the polls in determining ballot style (green or purple stripe) for voters in the precinct

Custom Desktop ApplicationsTools for generating election maps for our field rovers (troubleshooters) of their area of responsibility.

This map shows the correct PP in blue and the wrong PPs in green with a purple line from the voter’s residence to the PP they went to in error.

Custom Desktop Applications

Custom Desktop Applications

Legal Descriptions For DOJ Submissions

Demographics for DOJ Submissions

After each decennial census, the elections department redraws the voting precincts, board of supervisor and justice of the peace boundaries.

Custom Web ApplicationsOnline Reviewer website for the public to lookup district information

http://recorder.maricopa.gov/reviewer

Built using Visual Studio 2010 (vb.net), Silverlight and ArcGIS Server

Custom Web ApplicationsPolling Place Locator

Custom Web ApplicationsOnline Redistricting for the public to make suggestions to district boundaries https://recorder.maricopa.gov/

redistricting

The interactive mapping tool allows for the public to draw their own lines as well as view the corresponding demographic impact of the changes:

Custom Web ApplicationsCandidates, the media, and election officials are interested in knowing which

precincts have reported results on election night. An internet map on election night as well as at the Phoenix Convention Center showing this is very helpful.

Mapping of minority language ballot requests assist in determinations of where to place bilingual pollworkers on Election Day:

Custom Mapping

Custom Mapping

Custom Mapping

Mapping aids in identifying geographic anomalies.

Additional analysis shows that although these 2

precincts seem to stand out because they are not

covered; surveys said no voters came in needing

assistance and they have a very low request rate of

Spanish ballots:

Custom Mapping

Mapping of Census demographic data aids in demonstrating urban Native American populations to inform redistricting decisions:

Custom Mapping

Thank you

Questions?

Contact: Gary BilottaMaricopa County Electionsgbilotta@risc.maricopa.gov