Mapper since:
April 11, 2019

Hi, i am Martien from The Netherlands. I am an IT freelancer.

I am a volunteer mapper and validator for the Humanitarian OpenStreetMap Team.

My focus is on quality control and assurance. I am active in the HOT Training / HOT Quality Control & Assurance and the Validators Endorser Team.

HOT OSM Slack display name: @martien-176