Professor Lynne Coventry explores how participatory mapping like OpenStreetMap empowers communities but faces cybersecurity threats, highlighting the need for trust, awareness, and resilient strategies against data manipulation and malicious attacks.
Walking remains a popular form of transport and exercise in Europe (Ramblers, 2020). Despite this, the provision of trail information that meets individual requirements remains inconsistent. This talk presents how the National Trust is using OpenStreetMap relations and working with others to promote a common representation to describe walking trails.
How is OpenStreetMap and it's community doing across Europe? What are the strengths of each local chapter and what is challenging or surprising them? Gregory will ask questions of a few representatives from different countries.
"Clearance" tracks OSM changes and replicates extracts under quality constraints, and its subprojects: OSM Logical History which displays changes at semantic level and UnderpassAPI, which responds to Overpass queries from the partially replicated data.
https://github.com/teritorio/clearance
It's been another busy year for the development team working on the OpenStreetMap Website. We'll cover some changes you can see, some changes you might have missed, and some behind-the-scenes work laying the foundations for the future.
https://github.com/openstreetmap/openstreetmap-website
A light-hearted behind-the-scenes look running the OpenStreetMap infrastructure. From fighting bots and scrapers to rescuing failing servers, discover how the Ops Team keeps OSM.org running smoothly.
The Panoramax project started almost 3 years ago. This session will describe the current status of the project and what we expect for the future, at the code stack level, at the instances level, as well as its governance thru a "Panoramax Foundation".
With two styles for mapping sidewalks, it's difficult to map footways and use the data. This talk dives into several new tools for assessing sidewalk coverage, creating personalized and more detailed walkability isochrones, figuring out where to prioritize a new crossing, and routing based on user-defined "interesting streets".
MapSwipe is an application that enables crowdsourced data collection for OpenStreetMap and helps prioritize mapping efforts by identifying areas needing updates. This talk will explore future possibilities for expanding its role, including potentially allowing direct edits to OSM and strengthening ties with the OSM community for more seamless contributions.
Mapping damage on OSM is critical to support the work of humanitarian organizations. Nonetheless, as recent discussions demonstrate, there is not yet a consensus on the best approach. Let's continue this conversation!
Building Data Readiness using OpenStreetMap as part of a Nigerian Red Cross/ British Red Cross Programme
Data Readiness is the ability to use quality and timely information in humanitarian operations and programmes. This presentation will introduce the collaborative 5-year journey of the British and Nigerian Red Cross, where OSM was used to build foundational data capabilities to enhance effective humanitarian decision-making and community engagement.
fAIr is an open AI-assisted mapping service by HOT, supporting faster and more accurate humanitarian mapping using computer vision. This talk covers 2024–2025 progress, UI/UX improvements and the role of OSM in training and output. We’ll also discuss challenges, and future plans for contributing to OSM.
A look at what goes on behind the scenes to power my UK "Survey Me" tool, with advice for anyone looking to run similar tools elsewhere. Sources the tool compares with OSM include AllThePlaces and datasets for schools, healthcare, defibrillators and postboxes.
The new OpenStreetMap vector tile service powers the Shortbread maps on the home page, but you can use it too. Learn how to make your own website or style using these tiles, and better ways to customize your style.
I rode my bike from London to Berlin, and had a burning question that I wanted to answer. How many rivers did I cross? With a little bit of geospatial knowledge and some great open data, I found my answer. This is the story of why and how!
We analysed 30 official cycling infrastructure datasets across the EU, standardised them, and compared them with OSM data. Missing segments were extracted automatically and then saved as geospatial files per area of analysis. These files will be shared with the community. The work is ongoing, more datasets to be added.
In this workshop we will generate base map tiles from OSM data using Planetiler, set up Martin tile server, set up nginx to serve our sample web site that will use MapLibre GL JS to show the map.
https://github.com/maplibre/workshop https://github.com/onthegomap/planetiler https://martin.maplibre.org/ https://github.com/maplibre/maputnik https://github.com/maplibre/maplibre-gl-js
Transparency and Trust in Collaborative Mapping: Concerns and Dilemmas in AI-Generated Road Integration within OpenStreetMap
AI content in OSM has surged over the past decade, prompting mixed reactions from contributors. We analyzed community discussions to understand emotional concerns and the shifting role of mappers. We then explored whether machine-generated roads can be reliably identified in OSM after they’ve been integrated into the database.
With MapTCHA we explore if the validation of computationally generated predictions of map features could serve as an image based CAPTCHA to map new OSM objects. Following an earlier proof-of-concept at FOSDEM 2025, here we provide a development update.
https://github.com/ciupava/maptcha_dev
The OSMF's new vector tile service updates every minute. This talk takes a deep dive into how we accomplish this, focusing on the software behind the scenes.
The OpenStreetMap community has assembled an enourmous database of our world. There are lots of more or less specialized maps out there, each showing some of the data. But there is no map that shows all of the data. How can we discover what is not shown by any map?
https://codeberg.org/jot/osm-spyglass http://test.osm2pgsql.org/
This talks presents the "Postpass" service, a database that serves OSM data for public querying much like Overpass, but uses PostGIS under the hood. With a few extra characters added to your query, you can have the power of PostGIS at your fingertips from within Overpass Turbo.
https://github.com/woodpeck/postpass
The Overpass API allows for queries for interesting or special data of the OpenStreetMap data. Recent issues and their likelihood to be implemented are presented: compliance with data redactions, fair quotas, and resilience to disk failures. Bring in your questions about Overpass API and how to query OpenStreetMap data.