Background

Studied Math & Computer Science

Wondered:
Is there an intersection of people + technology + social good?

About Me

PhD Student at University of Colorado Boulder

Human-Computer-Interaction: Crisis Informatics

Crisis Informatics

Diaster Mapping

Haiti Earthquake 2010

Typhoon Yolanda 2013 (Philippines)

Nepal Earthquake 2015

4 Billion
Geographic Points

Roads

Map Data © OpenStreetMap Contributors

Map Data © OpenStreetMap Contributors

Map Data © OpenStreetMap Contributors

Map Data © OpenStreetMap Contributors

Map Data © OpenStreetMap Contributors

Buildings

© OpenStreetMap Contributors

© OpenStreetMap Contributors

© OpenStreetMap Contributors

© OpenStreetMap Contributors

© OpenStreetMap Contributors

Contributor Centric OSM Analysis

To understand OSM, we must start where the map starts: the contributor

All contributors are users, but not all users are contributors

Count of Distinct User IDs in the planet history:

With less than 10 edits:

Less than 100 edits:

(Note, a square building = 5 edits: 1 way and 4 nodes)

Editing Histories

Not all contributions are equal

(clearly)

OSM Quality Implications + Disaster Mapping

15 Contributors / Square Kilometer

Buildings & Roads?

What about compared to high quality regions?

Users By Country

Using the latest osm-qa-tile planet file, we can calculate per-Country statistics for the planet in not a lot of time!

Users By Country

Where are the Contributions?

Mapbox Data Team

Questions?