Show Hn: I Visualized The Entire History Of Citi Bike In The Browser - Expert Insights

Each moving arrow represents one real bike ride out of 291 million, and if you've ever taken a Citi Bike before, you are included in this massive visualization!

You can search for your ride using Cmd + K and your Citi Bike receipt, which should give you the time of your ride and start/end station.

Everything is open source: https://github.com/freemanjiang/bikemap

Some technical details: - No backend! Processed data is stored in parquet files on a Cloudflare CDN, and queried directly by DuckDB WASM

- deck.gl w/ Mapbox for GPU-accelerated rendering of thousands of concurrent animated bikes

- Web Workers decode polyline routes and do as much precomputation as possible off the main thread

- Since only (start, end) station pairs are provided, routes are generated by querying OSRM for the shortest path between all 2,400+ station pairs

Comments URL: https://news.ycombinator.com/item?id=46530832

Points: 22

# Comments: 9

Source: HackerNews