Texas Legislative Council

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2 Texas Legislative Council Clare Dyer, Manager, Mapping & Redistricting Ed Clow, GISP, Programmer Analyst, Applications Marshall Kunze, Programmer, Applications

3 Texas Redistricting 2011 Time frame for Texas Legislature to redistrict: Spring 2011 Preparation 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

4 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

5 Redistricting Toolbox Internet DistrictViewer, Who Represents Me? GIS Address Matching, Boundary Definition System (BDS), Mapping, RedAppl Data Texas Reporting and Election Analysis Database (TREAD), Reporting

6 GIS Development Goals Objectives: 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

7 GIS Server Architecture

8 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

9 Redistricting Tools Reporting Available for any redistricting plan Backend report processor: SQL Reporting Services (SRS) Reports delivered directly to clients via in PDF, or sent to printer for hard copy creation Reports can also be sent directly to the member s web page or to DistrictViewer C#, SQL Server 2005, SQL Reporting Services, Infragistics

10 Redistricting Tools Mapping 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 containing a link to download the map C#, SQL Server 2005, SQL Reporting Services, ArcGIS Server, ArcSDE, Python, ArcObjects

11 Redistricting Tools RedAppl Desktop plan creation tool Map functionality provided by ThinkGeo Tabular data stored in SQL Server C#, SQL Server 2008 Express, ThinkGeo, Infragistics, NHibernate

12 Redistricting Tools Boundary Definition System (BDS) Desktop ArcMap application for geographic editing of boundaries 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

13 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

14 Redistricting Tools DistrictViewer 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

15 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

16 Links Texas Redistricting Who Represents Me? DistrictViewer