Simon Willison’s Weblog

10th September 2009 - Link Blog

OpenStreetMap: QuadTiles. Fascinating explanation of a proposal for replacing lat, lon pairs in the OpenStreetMap database with a QuadTile-based addressing system.

Posted 10th September 2009 at 3:54 pm

Recent articles

Stateless MCP has recaptured my interest (and inspired mcp-explorer and datasette-mcp) - 31st July 2026
OpenAI’s accidental cyberattack against Hugging Face is science fiction that happened - 22nd July 2026
A Fireside Chat with Cat and Thariq from the Claude Code team - 21st July 2026

This is a link post by Simon Willison, posted on 10th September 2009.

algorithms 20 geospatial 82 openstreetmap 55 quadtiles 1

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