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GIS-Redistricting-TX Powered By Docstoc
					Texas Legislative Council
 Clare Dyer, Manager, Mapping & Redistricting
 Ed Clow, GISP, Programmer Analyst, Applications
 Marshall Kunze, Programmer, Applications
Texas Redistricting 2011
 Time frame for Texas Legislature to redistrict: Spring 2011
 Considerations – Voting Rights State
 Projected population: 24.3 million
 Expect over 800,000 census blocks
 254 counties; 150 house and 31 senate districts
 8,250 voting precincts
 More than 17.5 million election records
Redistricting Website
 News and Archived News, which becomes part of
 the history
 Process, Glossary, Publications
 Summary of Activity and Timeline
 Current Districts
 Maps and Reports and Computer Services
 Links and FTP Site
Redistricting Toolbox
  DistrictViewer, Who Represents Me?

  Address Matching, Boundary Definition System (BDS),
  Mapping, RedAppl

 Texas Reporting and Election Analysis Database (TREAD),
GIS Development Goals
 Provide a high-capacity, high-availability server
 environment for internet map generation and
 geographic processing
 Centralized data source for all applications
 Common development platform
 Consistent look and feel of applications
GIS Server Architecture
Redistricting Tools
Texas Reporting and Election Analysis Database (TREAD)
 “One-stop shop” serving the needs of internal redistricting
 support staff
 Primary purpose: election management and data entry
 Integrates high-volume production mapping and reporting
 Allows user administration and plan management
 C#, SQL Server 2005, SQL Reporting Services, Infragistics
Redistricting Tools
 Available for any redistricting plan
 Backend report processor: SQL Reporting Services (SRS)
 Reports delivered directly to clients via email in PDF, or sent to
 printer for hard copy creation
 Reports can also be sent directly to the member’s web page or to
 C#, SQL Server 2005, SQL Reporting Services, Infragistics
Redistricting Tools
 Available for plan and non-plan maps
 Automated using map templates and dynamic title substitution based
 on which data the user selects
 ArcGIS Server used for map processing and rendering
 Maps are rendered as PDF
 Delivery methods include output to printer or by email containing a
 link to download the map
 C#, SQL Server 2005, SQL Reporting Services, ArcGIS Server,
 ArcSDE, Python, ArcObjects
Redistricting Tools
 Desktop plan creation tool
 Map functionality provided by ThinkGeo
 Tabular data stored in SQL Server
 C#, SQL Server 2008 Express, ThinkGeo,
 Infragistics, NHibernate
Redistricting Tools
Boundary Definition System (BDS)
 Desktop ArcMap application for geographic editing of
 Built with ArcObjects
 Data is housed in ArcSDE, and all configuration for
 editing is stored in XML
 Flexible and extensible system
 C#, ArcObjects, Infragistics, ArcSDE
Redistricting Tools
Address Matching
 Based on the Centrus Address Broker
 Used in mailouts to match addresses and districts
 Also used by research for processing addresses for
 custom mapping requests
 C#, Centrus Address Broker, Infragistics
Redistricting Tools
 Web mapping application
 Public access to redistricting plans, maps, and reports
 Internal site allows users to generate maps dynamically
 C#, SQL Server 2005, Dojo, JavaScript, JSON, AJAX,
 ArcGIS Server, ArcSDE
Redistricting Tools
Who Represents Me? (WRM)
 Web application that performs address matching to
 provide users with their representative information
 Uses Centrus Address Broker for geocoding
 Uses ArcGIS Server for map generation
 Invokes DistrictViewer to display map
 C#, SQL Server 2005, Centrus Address Broker
 Texas Redistricting
 Who Represents Me ?