State of the Map US

State of the Map US

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State of the Map US is the largest gathering of OpenStreetMap community members from across the country. And this year we're meeting in Madison, Wisconsin, June 11 - 13th. https://openstreetmap.us/events/state-of-the-map-us/2026/

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State of the Map US
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In this #SOTMUS2026 presentation, Aditya Sridhar from Lyft Mapping explores AI agents for high-volume ground-truth validation. 🔗 youtu.be/yREdUABY4xE?...

youtu.beScaling OSM Curation: AI Agents for High-Volume Ground-Truth Validation ~ Aditya SridharManual curation is a bottleneck, with backlogs hitting 200k tasks. By using a distributed data network, data expiration has been cut from 11 to 3 months, making the map 4x fresher. This volume…
State of the Map US
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This #SOTMUS2026 presentation offers a first look at the new #MapRoulette interface. The redesign aims to give users a fresh interface with targeted improvements, without breaking the "flow" that has worked for mappers for 13 years. 🦩 🔗 youtu.be/1SIU0xUJhSg?... 🦩

youtu.beAnnouncing MapRoulette 4 ~ Martijn Van ExelAn excited first look at the brand new MapRoulette interface! With this redesign, the goal was to give users a fresh user interface with targeted improvements, while not breaking the "flow" that has…
State of the Map US
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One day in 2021, Jacob used #StreetComplete on a date, and now Alyssa works for #OpenStreetMap US. In this #SOTMUS 2026 talk, learn how this couple balances their map-focused personal and work lives, and how you can get your family and friends involved in #OSM too! 🔗 youtu.be/WJZnai3dsxo?...

youtu.beHow OpenStreetMap Infiltrated our Relationship ~ Alyssa Castronuovo & Jacob HallFull title: How OpenStreetMap Infiltrated our Relationship (or how you can get your loved ones into OSM) One day in 2021 Jacob opened up StreetComplete on a date, and now Alyssa works for…
State of the Map US
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This #SOTMUS2026 talk covers a statistical model using change sets to estimate OSM's data fidelity for POIs, including shops, amenities, leisure, and healthcare. 🔗 youtu.be/gr6oGzpOgik?...

youtu.beWhat is real? Estimating the fidelity of OSM data using changesets ~ Nat HenryOSM users want to know that the map reflects reality at their location and for their points of interest (POIs). This talk covers a statistical model that uses changesets to estimate OSM's data…
State of the Map US
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#OpenHistoricalMap is more than a map. In this #SOTMUS2026 talk, learn about OHM's analysis tools, what you can do with them, and the shortcomings the project wants to address with community help. 🔗 youtu.be/-2lJT6FiwsU?...

youtu.beHistory however you look at it ~ Minh NguyễnOpenHistoricalMap is more than a map. As an open data project, it aims to help people discover and understand the wealth of information that mappers have contributed, whether or not it fits on the…
State of the Map US
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It's official! OldInsuranceMaps is now part of the OSM US Charter Program. Learn more about OIM in this blog post: openstreetmap.us/news/2026/08... #OpenStreetMap #OldInsuranceMaps #opendata #geospatial #maps

openstreetmap.usOldInsuranceMaps.net is now a Charter Project!OSM US is incredibly excited to announce the latest Charter Project: OldInsuranceMaps.net (OIM)!If you’re a map nerd you’ll remember ever seeing a Sanborn Insurance Map in person. They often come in…
State of the Map US
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This #SOTMUS2026 presentation shows how #OpenSidewalks (OSW) data has been published as reference layers and surfaced directly inside the Rapid editor, so mappers can use it today as part of their workflow while mapping pedestrian infrastructure in #OSM. 🔗 youtu.be/aqfywDMOekw?...

youtu.beOpenSidewalks in OpenStreetMap: Using OS-CONNECT as a Reference Layer in Rapid ~ Amy BordenaveOpenSidewalks (OSW) is an open data standard for mapping connected pedestrian networks, developed by the Taskar Center for Accessible Technology (TCAT) at the UW. In Washington State, a legislative…
State of the Map US
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On June 29, 2025, the Metrobus network in the Washington, DC area was radically altered overnight. This #SOTMUS2026 session explores how a few mappers quickly incorporated new data into #OpenStreetMap & inspired others to update bus networks in the surrounding area. 🔗 youtu.be/xlWNapXvBks?...

youtu.be(Re)Mapping DC's Bus Network ~ Andrew HeareOn June 29, 2025, the Metrobus network in the Washington, DC area was radically altered overnight. Every route number was changed, bus stops were closed, and some routes were entirely different than…
State of the Map US
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GrabMaps' KartaDashCam transforms ride-hailing trips in Southeast Asia into a passive mapping fleet. This #SOTMUS2026 talk shares the architecture, results from thousands of deployed units, & the technical & operational challenges of scaling edge-first map-making. 🔗 youtu.be/RynmZd0zgyw?...

youtu.beReinventing Map-Making with Edge AI Dashcams: KartaDashCam at Scale ~ Adrian MarginGrabMaps' KartaDashCam transforms everyday ride-hailing trips in Southeast Asia into a passive mapping fleet. Using Edge AI, it detects traffic signs and POIs on-device to drastically reduce mapping…
State of the Map US
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This #SOTMUS2026 talk describes the OSM US & Mapillary Camera Grant Program's impact from the perspective of one local mapper. It also discusses scaling street-level imagery collection in the US on Panoramax, a federated, free, and open-source platform. 🔗 youtu.be/AQh5C2xv09M?...

youtu.beImpact of Mapillary Camera Grant and Scaling Open Street-Level Imagery Across US ~ Harald KliemsIn 2025, the Mapillary Camera Grant Program distributed 40 cameras to the OpenStreetMap US community. Over 5 million fresh 360 degree images and comprehensive coverage of cities from Lansing,…
State of the Map US
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This #SOTMUS2026 presentation covers using official government datasets from the Bureau of Land Management, the National Park Service, and the U.S. Forest Service, and processing the data to update OSM with useful information, such as trail names or road reference numbers. 🔗 youtu.be/Y_ETv5hEWPY

youtu.beUsing Official Datasets for Roads and Trails ~ Rob SavoyeThis talk covers the details of using official government datasets from the BLM, NPS, and USFS, and processing the data to update OSM with anything useful, like a trail name or road reference number.
State of the Map US
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OSM is the basis for several transportation network datasets (think SharedStreets, etc). This #SOTMUS2026 talk explores how road network owners and transportation specialists can benefit from well-structured networks, making OSM the true worldwide datum for transportation. 🔗 youtu.be/SJI0RBd5gbw

youtu.beThe Usefulness of Road Networks in OSM ~ Mike MigurskiWhat good can you do with an OpenStreetMap road network? OSM has been the basis of several transportation network datasets like SharedStreets, OSMnx, and most recently Overture. Road network owners…
State of the Map US
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#OSM is more than data: it's a community. This #SOTMUS2026 talk explores how relationships, shared purpose, & collaboration strengthen the geospatial fabric across the U.S. 🦩 🔗 youtu.be/xxxFGBMR2Cw 🦩

youtu.beCoordinates of Connection: Mapping the People, Places, and Purpose That Bind Us ~ Lindsey PeñaOpenStreetMap is more than data: it's a community. Coordinates of Connection explores how relationships, shared purpose, and collaboration strengthen the geospatial fabric across the U.S. From…
State of the Map US
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#OSM data quality evaluations focus on measuring the data's accuracy & usability. But how do diverse contributors collectively decide what "good quality" data actually looks like? This #SOTMUS2026 explores this question. 🦩 🔗 youtu.be/0LhPW8KqsB0 🦩

youtu.beThe Social Life of Data Quality in OSM ~ Gopi MalathiOSM data quality evaluations typically focus on measuring the accuracy and usability of the data. But how do contributors with diverse backgrounds, skills, and interests collectively decide what…
State of the Map US
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Gareth Baldrica-Franklin shared a fascinating project, Mapping Teejop, in his #SOTMUS2026 keynote presentation. It's well worth the watch: youtu.be/nmC7O4V3A-8?... #OpenStreetMap #MadisonWisconsin

youtu.beKeynote: Engaging with the Local Landscape: The Story of Mapping Teejop ~ Gareth Baldrica-FranklinHear the story of Mapping Teejop, a digital mapping project centering Indigenous history and presence in and around Madison, Wisconsin. Mapping Teejop is an educational project for classroom use - a…
State of the Map US
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Abe Rubenstein shares his story of creating a software project and the generous help he received from the Madison tech community in this #SOTMUS2026 talk. 🦩 🔗 youtu.be/CcDxH4QQ8aE 🦩

youtu.beHow Madison civic tech gave me a map to navigate my early career ~ Abe Rubenstein"Are you a developer interested in building your own bus app?" In 2013, this question appeared on the SMSMyBus website - an ad for a real-time Madison Metro bus arrival API. Despite being a recent…
State of the Map US
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Learn about the history of the Eastern Turnpike in this #SOTMUS2026 talk. Sources discussed in the talk include NYS lidar data, highway department records, old topo maps, and NYS State Archive records. youtu.be/cDtGexVarpQ?... #OpenHistoricalMap #OHM #OpenStreetMap #OSM

youtu.beOHM: In Search of the Eastern Turnpike ~ Richard WeltyThe Eastern Turnpike operated between the areas of Albany NY and Williamstown MA from 1799 into the late 19th century. A private toll road, it was typical of the period, and there were many such…
State of the Map US
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This #SOTMUS2026 session explores Mergin Maps,  an open-source platform built on the power and familiarity of QGIS that simplifies field data collection. Learn more: youtu.be/uJ2NOfGoj1g?... #MerginMaps #OpenData #OpenSource #OpenStreetMap

youtu.beMergin Maps: an open source platform based on QGIS for data collection ~ Vitor VieiraMergin Maps simplifies field data collection, offering an open-source platform built on the power and familiarity of QGIS. Capture, share and publish geospatial data seamlessly with an intuitive…
State of the Map US
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This #SOTMUS2026 session demonstrates a #Python program used to identify #urbanheatislands by utilizing #LANDSAT thermal band imagery and #OSM ways exported through #Overpass. The program calculates the land surface temperature exposure for each way. 🦩 🔗 youtu.be/En2dNw2K3SQ?... 🦩

youtu.beUsing LANDSAT and OSM to Map Urban Heat Impact ~ Luke EverhartThis session covers a class project developed over the course of a semester: a Python program that takes both LANDSAT thermal band imagery and OSM ways exported via Overpass and calculates the Land…
State of the Map US
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After recent Texas floods and LA wildfires, KABOOM! needed to quickly support communities by identifying damaged playgrounds. In this #SOTMUS2026 talk, learn about a GIS workflow that helps prioritize sites by using transparent, replicable criteria. 🔗 youtu.be/SpbD1vEow1o?...

youtu.beRapid Disaster Mapping for Playgrounds: Turning Geospatial Data into Recovery Priorities ~ Alice LeeAfter the 2025 Kerrville, TX floods and Los Angeles wildfires, KABOOM! needed to quickly support communities by identifying damaged playgrounds. In this 15-minute talk, learn about a GIS workflow:…
State of the Map US
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#OSM contains a vast amount of data, and sorting through it all can be challenging! In this #SOTMUS2026 presentation, Quincy Morgan demonstrates how TheMap.is lets you easily browse OSM data by theme so you can focus on the specific data you're seeking. 🦩 🔗 youtu.be/F5TNxp0vPx4?... 🦩

youtu.beThematic OpenStreetMap with TheMap.is ~ Quincy MorganOSM has a LOT of data, and it can be hard to sift through it all! TheMap.is lets you easily browse OSM data by theme so you can focus on just the data you care about. Choose from thousands of…
State of the Map US
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Boundary disputes are a major but little-known challenge in mapping. This talk at #SOTMUS2026 illustrates the process of displaying disputed borders and the development of a legal multiview boundary set using #OSMdata and its connections to #Wikidata.  🔗 youtu.be/yOs_Avj5ZgE?...

youtu.beCan you make a legal map with OpenStreetMap? ~ Mike MigurskiBoundary disputes are a major but little-known challenge in mapping: how can you show disputed borders between neighboring countries that claim the same territory? Here in the U.S. we're used to…
State of the Map US
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This #SOTMUS2026 talk previews HIFLD Next, a new community-driven data-stewardship initiative with the Public Environmental Data Partners. 🔗 youtu.be/RLe1ZxTVnKg?...

youtu.beSafeguarding America's Open Infrastructure Data: OSM As An Ecosystem Enabler ~ Puneet KolliparaThe federal open-data portal HIFLD Open long curated geospatial data layers on critical infrastructure from across agencies. But its 2025 shutdown by DHS wiped out a common reference point for…
State of the Map US
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This #SOTMUS2026 talk proposes vector map embedding tiles: a data format that augments open map data with semantic and visual embeddings, as well as lightweight visual-language descriptions derived from imagery. 🔗 youtu.be/BR6J2sMi7xI?...

youtu.beEmbedding Tiles: Should We Be Structuring Open Map Data for AI? ~ Sean GormanAI models are increasingly integrating open map data into their data corpus. Should the community leave AI labs to their own devices or help intermediate this interaction? To this end, this talk…
State of the Map US
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When HIFLD Open was taken offline, a community effort launched to restore its 400+ critical data layers. This #SOTMUS2026 talk explores how HIFLD was prepared for this agent-driven future by minimizing entropy, formalizing interfaces, and leveraging #OSM as a foundation. 🔗 youtu.be/2TuLgsIf1p8?...

youtu.beHow We Prepared HIFLD for the Singularity ~ Jeremy HerzogWhen HIFLD Open was taken offline in 2025, a community-driven effort launched to restore its 400+ critical data layers. As automata increasingly navigate systems for users, they prioritize what is…
State of the Map US
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This #SOTMUS2026 talk will present a data-driven method for functional place classification, building on previous efforts to address these issues. 🦩 🔗 youtu.be/b7ZQmGaPvlU?... 🦩 #OpenStreetMap #senseofplace #placeclassification #opendata

youtu.beGood vibes about places ~ Minh NguyễnIn the United States, populated places have long been classified based on diverse personal perspectives, resulting in a patchwork that is inadequate for data consumers and difficult for users to…
State of the Map US
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Learn about OpenWetlandsMap, a collaboration between OSM US and the Environmental Policy Innovation Center (EPIC), in this #SOTMUS2026 presentation: youtu.be/8n_fUBEUbWE

youtu.beOpenWetlandsMap - an accessible, community-maintained dataset of wetland observations ~ EmmaLi TsaiWetlands filter our water and protect our communities. Despite their importance, up-to-date wetland data remains fragmented, resulting in decision-making based on incomplete information. To address…
State of the Map US
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Free and global-scale datasets for points of interest (POIs) have proliferated recently. #SM users need new tools for understanding. This #SOTMUS2026 talk introduces OpenPOIs, a schema for conflating open place datasets including OSM, Overture Maps, & Foursquare OS Places. 🔗 youtu.be/84BwwX8ax5U

youtu.beOpenPOIs: a superset of open place data ~ Nat HenryFree and global-scale datasets for points of interest (POIs) have proliferated over the past two years, and OSM users need new tools to understand and compare them. This talk introduces OpenPOIs, a…
State of the Map US
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Learn about community mapping, data sovereignty, and Indigenous toponyms on OSM in this #SOTMUS2026 talk: youtu.be/1ZRapMnRNuE?... 🦩 #communitymapping #OpenStreetMap #datasovereignty

youtu.beCommunity mapping, data sovereignty and Indigenous toponyms on OSM ~ Emily JacobiIn 2015 Awana Digital (previously Digital Democracy) used OSM iD Editor to create Mapeo; an offline, open-source app co-built with Indigenous communities in the Amazon. Now with CoMapeo, people…
State of the Map US
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Wikimedia and #OpenStreetMap share similar challenges. Lane Becker and Mike Migurski of #Wikimedia share lessons they've learned and how OSM may benefit in the age of AI in this #SOTMUS talk: 🔗 youtu.be/Mr8mc5s-PUY?... 🦩

youtu.beWikimedia Enterprise - Lessons Learned ~ Lane Becker & Mike MigurskiFull title: Wikimedia Enterprise - Lessons Learned from working with large commercial reusers Over the last 6 years, The Wikimedia Foundation has developed a separate infrastructure to handle large…
State of the Map US
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At #SOTMUS2026, Dhanyasri Bolla presents a "Gap Analysis" from the perspective of a climate researcher - a prioritized wish list of features that, if mapped, would transform #OSM from a navigational tool into a critical engine for global climate adaptation. 🔗 youtu.be/ooyzka8X1F8 🦩

youtu.beDhanyasri's take on megacities climate resilience ~ Dhanyasri BollaAs cities face increasing climate risks, researchers are racing to model resilience in megacities. While analyzing adaptation strategies across 43 megacities, this talk found that standard data often…
State of the Map US
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Clay Smalley explores the evolution of OSM tagging since its 2004 inception and the mishmash of dialects mappers use today in this #SOTMUS2026 talk: youtu.be/fOefY-6jUMw 🦩 #OpenStreetMap #StateoftheMapUS

youtu.beOSM-lish: OpenStreetMap's Own English Dialect ~ Clay SmalleyWhile OSM may have begun as a British project, the language we tag with is anything but. Come explore the evolution of OSM tagging since its 2004 inception and the mishmash of dialects we tag with…
State of the Map US
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Learn how Amazon generates map tiles for last-mile delivery using OSM-derived datasets and Planetiler in this #SOTMUS2026 presentation: youtu.be/N96IdetD6CE 🦩 #OpenStreetMap #maptiles

youtu.beHow Amazon Generates Map Tiles for Last-Mile Delivery ~ Vishal Kumar & Shaishav MaisuriaFull title: How Amazon Generates Map Tiles for Last-Mile Delivery Using OSM-Derived Datasets and Planetiler Amazon Last Mile generates 22+ custom map tile layers using OSM-derived datasets like…
State of the Map US
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In this #SOTMUS2026 talk, learn how to use the Walksheds tool to evaluate pedestrian accessibility using #OSM data: youtu.be/PZuZEhqBsdE 🦩 #pedestrian #accessibility #OpenStreetMap

youtu.beThe Walksheds Tool: Evaluating Pedestrian Accessibility Using OSM Data ~ Sam YasenThe OpenSidewalks Schema is an open pedestrian transportation network data standard for describing and sharing pedestrian network and pedestrian network-adjacent data. See how The Walksheds tool…
State of the Map US
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In this interesting #SOTMUS presentation, Julio May shares a process for multi-criteria geospatial analysis to understand more sustainable urban #mobility: youtu.be/pqzFV2XAfoc 🦩 #OpenStreetMap #geospatialanalysis #geo #GIS #urbanplanning

youtu.beScoring the feasibility of micromobility with OSM data ~ Julio MaySpringfield, IL, faces high car dependency and infrastructure gaps. This session explores using multi-criteria geospatial analysis to solve the "last-mile" problem. We'll dive into a composite…
State of the Map US
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🚴 Learn how #OpenStreetMap data can be used to assess the bikeability of school routes in this #SOTMUS presentation: youtu.be/Bd0kfZnVYOU?... 🦩 #geospatial #biking #transportation #bikesafety

youtu.beUsing OSM Data to Assess the Bikeability of Schools ~ Harald Kliems, Sam Younkin, Ben VarickBiking to school can have many health, environmental, and social benefits, but few students in the United States bike to school. In a community-engaged research partnership between UW-Madison, the…
State of the Map US
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Learn more about the Pedestrian Working Group in this 15-minute presentation at #SOTMUS2026: 🔗 youtu.be/IkkWVjAqQR4?... 🦩 #pedestrians #pedestrianmapping #pedestriansafety #OpenStreetMap

youtu.bePWG 1.0: Creating the Pedestrian Working Group Schema & Guide ~ Amy Bordenave & Jacob HallIn this 15-minute presentation, OSM US Pedestrian Working Group participants Amy Bordenave and Jacob Hall will announce the 1.0 releases of the PWG Schema and PWG Guide, share our Working Group's…
State of the Map US
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In this #SOTMUS presentation, Chad Blevins reflects on the journey from YouthMappers' founding to its becoming a cornerstone of the OpenStreetMap ecosystem, including impact stories, key milestones, and our future vision. 🔗 youtu.be/n3_2h3sD4nM?... 🦩 #YouthMappers #OpenStreetMap

youtu.beA Decade of Mapping Impact: Celebrating 10 Years of YouthMappers ~ Chad BlevinsIn 2025, YouthMappers officially celebrates 10 years of empowering the next generation of open-source cartographers. What started as a vision to connect university students with meaningful geospatial…