Boston's Map of Reported Hazard for Bicyclists

Each of these reports has been sent to the City of Boston via 311. The map does not represent the most dangerous areas of the city; rather, it represents areas where the most hazards have been reported, and where better infrastructure would be most impactful.

Contribute to this map

  1. Download our app for Android or iPhone and record every ride.
  2. When you encounter a hazard in Boston, tap the screen to add a marker.
  3. When you finish your ride, return to the marker, hit Share, then hit Report To 311.

See detailed instructions here.

Not in a city that has one-tap 311 reporting? Request this feature in your city.


Turn your smartphone into a high-quality dashcam with our app, and report hazards to your city: