OpenStreetMap Data Temperature -
The blob of red, orange, yellow, green and gray is an abstracted map of the city, displaying only the linear OpenStreetMap features for that city. The features are styled so that two salient characteristics of community activity become the defining visual elements: number of versions and date of last update. The number of versions, indicating how many updates a feature has received since its creation, is visualized using line thickness, a thicker line style indicating a feature that has seen more community updates. The time passed since a feature last saw an update from the community is visualized using a gray-red-green color gradient, where gray represents features that have not seen an update in two years or more, while green represents linear features that were ‘touched’ in the last month.
Data Temperature components (with weights):
Percentage of users responsible for 95% of the current data: 30
Percentage untouched TIGER roads: -30
Average version increase over TIGER road: 5
Percentage features edited in the last 3 months: 50
Percentage features edited in the last year: 40
lower temperature = fewer updates/modification by the OSM community
