Ralph Aytoun
StaffVoting MemberOnline Community Engagement Associate
Bio
Retired Cartographer. Voting Member of the Humanitarian OpenStreetMap Team (Profile: https://tasks.hotosm.org/user/RAytoun) Co-Chair of HOT Activation Working Group, HOT Lead Validator Tutor new groups of mappers and validators at the monthly Missing Maps Mapathons in London. Tutor new groups of mappers at Corporate hosted Mapping Parties, London. Online Training Webinar : Advanced JOSM and Validation An active member of the HOT Training Working Group, Strategic Working Group, Activation Working Group and HOT Quality Control and Assessment Working Group. Helped with West African Motorbike Mappers (WAMM) on mapping villages in Sierra Leone. Helped with Warwick University (Institute of Science of Cities) mapping slum areas for research. Help with Portsmouth University (Crisis and Disaster Management) on post disaster mapping for Dominica (2017) : Common Sensing for Vanuatu and Solomon Islands (2019) Liaising with US GeoNames Database with regard to Place Names on OpenStreetMap
Posts
Data Gaps in Myanmar’s 2025 Earthquake Response: Demonstrating the Urgent Need for an Open Mapping Approach
Since the devastating earthquakes on 28 March 2025 in Central Myanmar, many international and local humanitarian actors, including the Humanitarian OpenStreetMap Team (HOT), have been actively supporting the disaster response and recovery. Explore how HOT is working with mappers to address local data challenges.
Validators: Experienced Mappers Making an Outsized Contribution
Validators serve an essential role in ensuring data quality and providing feedback to new mappers. Learn how validation works and how you can become a validator.
