Open Source, Public Redistricting Software

advanced geospatial analysis on the web Who we are

Apply geospatial technology for civic, social and environmental impact

Triple Bottom Line Civic/Social impact Donate share of profits Summer of Maps Research-driven 10% Research Program Academic Collaborations Open Source Open Data

Land Water People

1. UX Design

2. Geography & Place

3. Open Source

4. Open Data

A few examples

Machine Learning

Climate Change

opentreemap open source software for green infrastructure

Data Management

Eco Benefits

Research Grants

Web-based

Combine Multiple Sources

Chained Analysis Functions

Open Source

Radiant.earth

Road network data from OpenStreetMap Open Data

GTFS

Visualize Transit Network

Performance & Access Stats

Test Scenarios

Address-based District Matching and Elected Official Lookups

Data Coverage

Data: Redistricting

10% Time

We live in Philadelphia

Gerrymandering Index Using Cicero data to determine the most gerrymandered districts in the US

Least Compact Districts Raleigh B C = 1.2 Miami 2 C = 2.5 Houston B C = 2.5 Houston E C = 3.1 Fort Worth 7 C = 3.1 California 23 C = 2.5 Alaska 99 C = 2.5 Florida 18 C = 2.6 Florida 22 C = 2.7 Georgia 13 C = 2.7

Gerrymandering White Paper

2009

Michael McDonald Micah Altman

Better Automated ReDistricting

B.A.R.D.

Web-based Open source Designed for general public Integrate with data Generate valid (legal) plans Non-partisan Transparent Objectives

Sloan Foundation

Create and edit district plans Use template plans to get started faster Import and merge plans from other systems Display demographics, election and other data Integrate with GoogleMaps, Esri ArcGIS Online, OpenStreetMap or Bing maps Features (1)

Show additional reference map layers (school districts and administrative boundaries) Automatically calculate contiguity, compactness and population statistics as you create your plan Customize demographic, geographic and election data statistics on-the-fly Find unassigned areas Features (2)

Draw communities of interest and evaluate a plan against them Evaluate if proposed plan matches legal requirements Save and share plans Support public competitions, scoring and leaderboards Support multiple languages Support multiple, nested jurisdictions Features (3)

Django PostgreSQL/PostGIS GeoServer jquery OpenLayers Celery Technology

-or- Your Servers Cloud or Local Infrastructure

DistrictBuilder

Judy Ford Wason Center for Public Policy at Christopher Newport University 2011: VA Redistricting Competition

William and Mary team Drew 3 minority opportunity districts Basis for legal challenge VA Redistricting

Commission created by ballot initiative in 2010 11 members - bought one license for desktop Maptitude DistrictBuilder - simpler and all commission members can use plus public engagement Two community groups - Latino and Somali - drew districts for their communities Minneapolis City Council

Commissioners adopted those districts into their map In 2012 election, first Latino and first Somali representatives - outcome was better representation Minneapolis City Council

City Council promised public hearings, then backed out Journalists Competition Small prizes 3 categories: compactness, pop., ward splits Public forum 4 weeks Philadelphia City Council

Overall Winner

31 submissions (1,000+ plans) City Council held public hearings Invited winners to present plans Less embarrassing district map Philadelphia Outcomes

fixphillydistricts.com

Video

Scalability User experience design Collaboration costs Timeframe Sustainability Challenges

Ok, ok, what s next?

2.0

Expensive Complicated to setup Time Data loading Infrastructure Sustainability Problems

Census Data APIs Improvement #1

Re-architect for shared infrastructure (configure vs. install) Improvement #2

National Scale Improvement #3

Re-design User Experience Improvement #4

Support Other Types of Districts Improvement #5

80 hours 80 minutes 2021

More Amanda Holts

Open Source, Public Redistricting Software