Kai Johnson
- Mapper since:
- January 27, 2014
- Last map edit:
- June 11, 2026
Latest Diaries
Diary Entry Qloverleaf - An Overpass QL interpreter using the QLever database
I’ve been working recently on a personal project to investigate how much of the Overpass query language could be implemented using a different back...
Diary Entry A New Container Image for Overpass
I’d like to announce the release of a new Docker container instance for Overpass. I’ve been running Overpass locally for a couple of years and hav...
Diary Entry Some Thoughts on Phantom Fords
Many OSM validators will report an error if a waterway crosses a highway without some additional tags or structure at the intersection, such as a b...
Diary Entry The State of GNIS Imports into OSM
This diary entry is also available as a personal page on the OSM wiki. Some History of GNIS Imports GNIS is a database developed by USGS that con...