I frequently get emails asking me about visualising collections of GPS traces as an animation. The OpenStreetMap community is way ahead of me on this one, and has a tool called Party Render to create animations of mapping activity.
Here's one that Mikel just pointed out from a recent mapping party in Mumbai:
Does anyone know what image was here before it was removed? I wish the attribution link was working!
Update: thanks to the unique filename and unusual size, Mike and I are pretty sure it's this image he found here (and they found here).
Update II: Karen Kurycki clarifies in the comments. Thanks Karen!
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