Welcome to The Bay Citizen's Bike Accident Tracker!

We've expanded the app with all new data: five years of collision statistics covering the entire Bay Area.
Source: California Highway Patrol. Time period: Jan. 2005 through Dec. 2009 (the latest region-wide data available; see Methodology for details).

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NOW SHOWING: 14113 accidents | 100% of all cases
Locations with more than one accident display only the most recent one--see Raw Data for full list. Locations with 5+ crashes are marked as red Hotspots.