MIP-14
Map Improvement Proposal 14: Trigger for Stricter Map Progress Metrics
Summary
MIP-14 raised the bar for regions to achieve the top score on the Coverage and Activity components of Region Progress, which are used to determine the size of the weekly rewards pool and allocate rewards among regions of the world. This resulted in stricter requirements than were established in MIP-6.
Timeline
Detailed Changes
In the long run, achieving a 100% score on the Coverage and Activity metrics would require mapping all roads on a regular basis. It is important to avoid "grade inflation" so that the top-performing regions, which are getting closer to this end state, earn more rewards than others that are farther away from achieving it. The threshold to achieve a 100% score needs to function like a curve on an exam.
MIP-14 established a "trigger" for imposing stricter requirements, specifically a guideline that regions receiving 100% on the Coverage and Activity metrics should account for no more than 5% of region weight. At the time when MIP-14 was implemented, this led to tougher requirements:
To maintain a 100% score for Coverage in a region, contributors needed to refresh 20% of unique km every 28 days, up from 15% before MIP-14.
To maintain a 100% score for Activity, contributors needed to submit 75% as many total km every week as there are road km in the region, up from 30% before MIP-14.
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