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Mapper seit:
27. Mai 2007
Letzte Kartenbearbeitung:
13. September 2025

Cofounder OpenCage. Software engineer. Geocoding. Cycling. Speaker at several SOTM conferences.

Managed to survey a whole city (10x10km) in a four month project by walking and cycling every street, paths and taking lots of photos.

2024 managed a streak of 363 mapping days (unlikely to continue at that rate).

Interested in timezones, elevation, ocean/sea, disputed border data and general tagging validation tools.

Recently cleaning up postcodes all over the world (those too long, too short, in the wrong area).

If you have spare time try https://nominatim.org/qa/ , https://osm.mathmos.net/addresses/pc-errors.html , https://osm.janmichel.eu/taginfo/newkeys.htm

Neuste Blogs

Blog-Eintrag New validation rule: Suspicious addr:state value

The Nominatim QA tool added a new layer “Suspicious addr:state value” If addr:state is the same addr:province. Depending on country addr:provin...

Kommentare 3 Kommentare Datum 31. Juli 2025

Blog-Eintrag Cleaning up US postcodes

Or zip codes as they’re called in the United States. The Nominatim geocoder has trouble parsing address queries when its OSM database table contai...

Kommentare 1 Kommentar Datum 26. Mai 2019