Mapping Citi Bike's Operations Against the Neighborhoods It Serves

Citi Bike's public GBFS feed updates every 30–60 seconds: how many bikes, how many open docks. But a station showing ten bikes and ten docks tells you nothing about whether those bikes will be gone in twenty minutes, or whether that station is the only mobility option for a neighborhood a quarter-mile from the nearest subway The challenge was building a tool that could surface which stations needed attention, where service gaps fell along equity lines, and how to reason about rebalancing priorities without access to proprietary data