Data Visualization: Adding Crowd Sourced information

Nine years ago, mapping in Haiti after the natural disaster earthquake.

OpenStreetMap – Project Haiti

A visualisation of the response to the earthquake by the OpenStreetMap community. Within 12 hours the white flashes indicate edits to the map (generally by tracing satellite/aerial photography). Over the following days a large number of additions to the map are made with many roads (green primary, red secondary) added.