Juergen Juffa
- Mapper since:
- February 22, 2016
- Last map edit:
- June 28, 2026
My goal is to improve OSM’s cycling related features. My focus is on Chicago’s North, West and Northwest Suburbs. I pay particular attention to on-road bicycle accommodations such as bike lanes, side paths and sign-posted bike route networks.
Latest Diaries
Diary Entry Update of speed limit data in Arlington Heights, IL, part I
completed survey of all speed limits in an area south of Palatine Road, east of Wilke, west of Arlington Heights Road and north of Euclid/Northwest...
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June 20, 2026