> So instead the traces are cut into tiny chunks and aggregated and only shown where there are more than 50 people at the same spot. The same algo that does th

> So instead the traces are cut into tiny chunks and aggregated and only shown where there are more than 50 people at the same spot. The same algo that does that could tell the field mapper to go look at roads that are barely used (or whatever criteria ends up being the best), it doesn't need to tell them how many people or who went on that road. Sometimes I think that Google create their road maps solely using satellite pictures.