H3: Uber’s Hexagonal Hierarchical Spatial Index

eng.uber.com

Uber developed H3, our open source grid system for optimizing ride pricing and dispatch, to make geospatial data visualization and exploration easier and more efficient.

This is super-cool. Uber built an entirely new way to look at geospatial data to meet the specific needs of the ride-hailing business. Some of the decisions they had to make along the way and how they thought about them are really fascinating. Especially: why hexagons?? Games and GPUs love triangles, so...why hexagons?! Turns out, there's actually a really good answer to that.

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