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kumakyoo

Mapper since:
April 05, 2007
Last map edit:
December 19, 2025

Latest Diaries

Diary Entry Coverage of Sidewalks in Germany

As I’m interested in pedestrian infrastructure, I asked myself what percentage of all sidewalks in Germany has already been mapped. It is difficul...

Comments 10 comments Date September 23, 2025

Diary Entry Analysing Swarm Intelligence: What's a Highway?

OSM exists now since more than 20 years. During this time, a tagging scheme evolved. It has undergone several changes since, is partly approved by ...

Comments 12 comments Date August 27, 2025

Diary Entry Why Geometry Matters

At work1, I started creating a real pedestrian routing that uses sidewalks rather than the middle of the road (unlike most pedestrian routing softw...

Comments 10 comments Date June 03, 2025

Diary Entry Postboxes with New Collection Times

Deutsche Post, which operates almost all of Germany’s postboxes, recently changed the collection times for most of them. This was discussed on th...

Comments 2 comments Date May 14, 2025