Chaos Computer Club - archive feed

Coverage of `maxspeed` data in OpenStreetMap is very sketchy (about 12%). This situation is unlikely to change because the limits are often not signed explicitly. So, data consumers such as router software need to compensate huge holes in the data with more or less rough estimates based on other data. This talk shall explore a method how to infer default speed limits for different vehicle and road types more precisely for each country. about this event: https://2022.stateofthemap.org/sessions/YWH3XD/

Lighting talks registered during the State of the Map conference. ## UN Maps Learning Hub _by Séverin Ménard_ ## [community.osm.org](https://community.osm.org) _by Tobias Knerr_ ## Using OSM in RPGs ... or better in VTTRPGs. _by Marco Montanari_ ## [tile.openstreetmap.jp](https://tile.openstreetmap.jp/) Planet vector/raster tile server. _by Taro Matsuzawa_ about this event: https://2022.stateofthemap.org/sessions/VJMH9U/

Designing hyperlocal maps starts with understanding the users in their day-to-day journey through some user research method and why the current digital maps experience does not provide a complete experience for them to navigate and explore the neighborhood. This talk will provide the audience the insights into the mobility lifestyle of the local people in tier 2 cities and how the GrabMaps design team translates into mobile app design to help improve the quality of life for our users. The designer will also share what are some of the key learnings when designing for Southeast Asia. about this event: https://2022.stateofthemap.org/sessions/YXMUVT/

OSM has an unrestricted tagging model. Mappers can invent and use any tags. While this is part of OSM's success story, it has lead to a database where the globe is described in ever greater detail. In this talk we want to explore how users of OSM data handle a tagging model with so few constraints. Richard, the owner of cycle.travel, and Sarah, maintainer of Nominatim, team up to share their experiences of a decade of working with, and occasionally fighting against, OSM's ever evolving tagging schema. The OSM tagging model has significantly evolved since the first streets of London were put into the database. Not only are more and more different objects in the database, we also capture more of their properties and want to model ever finer nuances. This clashes with our goal to have one database for the entire planet. The closer we look the more differences between different regions there are. And to capture those the tagging has to become even more complex. Using the examples of the cycle tour planning site cycle.travel and the search engine Nominatim, we explore the evolution of OSM tagging from a data user's point of view. Looking at questions like * where do data users get their information about tagging * what kind of tagging can be practically used in software * how to handle local defaults and assumptions * how should OSM ideally document its tagging about this event: https://2022.stateofthemap.org/sessions/NAF9EN/

Pre-recorded lightning talks submitted in advance by people around the world. ## Our Top 10 Data Quality Aspects _Samson Ngumenawe_ [HOT](https://www.hotosm.org/) works with a number of organizations and communities that generate data through different contribution mechanisms, including desktop digitization, data collection surveys and local knowledge experiences. Each of these mechanisms lead to different aspects and issues that affect the quality of data contributed to OSM. We are prioritizing on minimizing the impacts of the top 10 aspects on the list through a number of ways, including mapper outreach programs, training, and developing technical tools. ## Community Mapping Initiatives in Tanga _Antidius Kawamala_ Promoting a data-driven decision making culture in Tanga under living lab initiative, we are complementing the global objective of OSM i.e. to create a free editable geographic database of the world by various mapping activities around the region. The initiative uses local member by building capacity on how to use OSM and contributing to it as well as University Students. These mappings have been putting the missing pieces of the community on the map and addressing challenges they face so far. The usage of GIS data as a tool for community as a decision-making data tool can help in timely action and on-time problem-solving. ## Mapping all the worlds open data. _Christopher Brown_ A showcase of how at mapstack we are building on top of OSM to create an ecosystem that will host all of the worlds open data as free to use web maps. ## Route shields of the world in OpenStreetMap-Americana _Clay Smalley_ [OpenStreetMap-Americana](https://wiki.openstreetmap.org/wiki/OpenStreetMap_Americana) is an alpha-stage OpenStreetMap renderer intended to resemble a North American road atlas. Despite the focus on the United States, OSM-Americana has had contributions from people all over the world interested in adding support for highway route shields of their home countries. See a showcase of these contributions, and find out how you can put your country on the map. ## Bad or Good OpenStreetMap, What and how do you map? _Enock Seth Nyamador_ OpenStreetMap editing is all welcoming, diverse and very forgiving but this leading to issues. Many of these issues which should not be occurring in the first place but happens. This is a quick talk giving you the tip of what I have come across in my short term as an OSM Contributor and why we should follow best practices. ## OSGeoLive: Your Open Source Geospatial toolbox _Enock Seth Nyamador_ [OSGeoLive](https://live.osgeo.org) is a self-contained bootable DVD, USB thumb drive or Virtual Machine based on Lubuntu, that allows you to try a wide variety of open source geospatial software without installing anything. It is composed entirely of free software, allowing it to be freely distributed, duplicated and passed around. It provides pre-configured applications for a range of geospatial use cases, including storage, publishing, viewing, analysis and manipulation of data. It also contains sample datasets and documentation. OSGeoLive is an [OSGeo](https://wiki.openstreetmap.org/wiki/OSGeo) project used in several workshops and cases at FOSS4Gs and around the world. ## AI4Mapping: Earth Observation Data for Rapid Map Generation and DRRM _Neyzielle Ronnicque Cadiz_ The Remote Sensing and Data Science: DATOS Help Desk by the Philippines' Department of Science and Technology- Advanced Science and Technology Institute builds on initiatives on disaster mitigation by providing a help desk pre-, during, and post-disaster events. The team provides remote sensing and data science applications support to critical activities on disaster mitigation, analysis, and advice. The project developed the Artificial Intelligence for Earth Observation (AI4EO) initiative to complement the DRRM efforts of mandated agencies in the Philippines with the goal of rapid map generation for disaster risk reduction and emergency response using earth observation and OpenStreetMap data. ## I Map Tallinn _Ilya Zverev_ A video installation about Tallinn and Every Door editor. ## OSM checks and completeness estimations with Disaster Ninja _Pavel Pashagin_ Disaster Ninja is an open-source tool that helps the Humanitarian OpenStreetMap Team search for unmapped areas when a disaster strikes. It can help to estimate the coverage of OSM data, and check if OSM data is up-to-date and consistent for population data. ## Women Participation in OpenStreetMap _Nadaraj Saranya_ ## OpenStreetMap in Geographic Information Science _Rajendean Keerthana_ ## State of the Map Asia 2022 Trailer Video _Mikko Tamura_ A 1-minute teaser video about State of the Map Asia 2022. about this event: https://2022.stateofthemap.org/sessions/HLTKHD/

Christopher Beddow takes us on a journey of how to map a small town using a variety of tools. The goal was to test and prove how much OpenStreetMap can be enriched using RapiD buildings and roads, and Mapillary map features, traffic signs, and imagery. He evaluates a small town in the western United States that is far from any mapping community and has very little data, and demonstrates how a vivid dataset can be added to OSM. In addition, he compares this to a small town in Switzerland, demonstrating how new details can still be added to a place that is heavily mapped by a strong local community. Mapping is a time consuming task, and challenging for an individual to do without a community or a team. However, many tools exist to enhance the capabilities of any lone map contributor, and also multiply the mapping power of a team. Christopher Beddow takes us on a journey of how to map a small town using a variety of tools. The goal was to test and prove how much OpenStreetMap can be enriched using RapiD buildings and roads, and Mapillary map features, traffic signs, and imagery. He evaluates a small town in the western United States that is far from any mapping community and has very little data, and demonstrates how a vivid dataset can be added to OSM. In addition, he compares this to a small town in Switzerland, demonstrating how new details can still be added to a place that is heavily mapped by a strong local community. Leaving this talk, you will understand how to use RapiD, Mapillary, and your own creativity to adapt your own locality into a comprehensive part of OpenStreetMap. about this event: https://2022.stateofthemap.org/sessions/SA77RH/

The OSM data model with its nodes, ways, and relations has done an amazing job for us over the years. It has seen very little changes since relations were introduced 15 years ago. But there are some real problems with the data model. With the experience of those 15 years behind us, its time to tackle some improvements. This talk will outline the problems with the data model, show ideas for improvements, and discuss possible ways that can move us forward step by step. The OSM data model is quite different from the "Simple Feature" data model used by most "geo" software. It has some great features, like the open tagging model, which has proven to be a great enabler for all sorts of innovations. But the data model also has its problems. Most often named are the missing area data type and the cumbersome geometry building needed for ways and relations based on their member nodes. This makes use of the OSM data more difficult, more expensive, and slower than it needs to be. There has been some discussions on these topics over the years, mostly after my talk in 2018 at the SotM in Milano, but work on this has stalled. Recently the OSMF Engineering Working Group has taken up this topic and payed me to do a study on the problems with the data model and possible ways forward. This talk will present the findings and should jumpstart the discussions around this in the OSM community. about this event: https://2022.stateofthemap.org/sessions/W3AGY8/

Through open mapping, we hope to inspire local youths and leaders to use technology to improve and create sustainable local governance system. We engaged 44 youths from 3 municipalities to participate in open mapping in first phase. In second phase, we gathered 10 IT officials from province 2 and highlighted OSM to connect geospatial elements for better local-level administration. Here, we will discuss our methodological framework, challenges, how we gained support from local units to coordinate with community youth, and impacts we successfully created. This talk will be relevant to those interested in laying a strong foundation not only for better governance but also for engaging youths. The success of local governments in meeting development targets is crucial for the goals of federalism in Nepal. The local governments have a colossal opportunity to set the course of development based on people’s aspirations, as citizens have increased power and responsibility to choose and act on their agenda in the federal system. However, these governments face daunting challenges in human, capital, and other resource constraints. Innovative citizen-centric approaches are necessary to navigate these challenges to achieve the development goals. It is also imperative to note that properly achieving the development goals and measuring their progress is contingent on decision making and planning, driven by data. Geospatial data is valuable to the local economy and community in various aspects. The openness of the information, or more specifically the freedom to access and use such open data, is crucial to achieving such multiplier effects of taxpayer-funded data generation processes. So hereby, our interest lies in training and encouraging local youths and leaders to leverage technology for good governance through open mapping in coordination with local administrative units. Our initiative looks beyond the myopic vision of training a handful of youth on digital mapping to create a limited number of outputs, i.e. maps. We implemented a mechanism in which we created a batch of OpenStreetMap (OSM) leaders, who in their regions, can inspire and enable such processes beyond the life of any particular project. As such, we wanted to set in motion a process that can beget far-reaching, longer-term benefits in the form of active citizenry (on the youths’ part) and data-driven development (on the local governments’ part). This will be in addition to the immediate, short-term outputs such as up-to-date maps and enhanced mapping skills of the mappers. In the first phase, KLL trained 44 citizens from 3 local bodies in the use of OSM and mapping in coordination with the municipality. The trained youths were also involved field data collection. Simultaneously, we started remotely mapping the municipality. Based on the need, we collected field data to complete the map. On mutual interests and availability of resources, the mapping of the local governments included points of interest like: Roads, Settlements, Educational institutions, Health facilities, Government offices, Banking institutions and others as agreed upon by the municipalities. Using the data hence collected, we created softcopies and hard copies of ward (smaller administrative unit of government in Nepal) level and municipality level maps and handed them over to the municipalities for their use. In the second phase, to ensure better understanding of OSM within the local governments, we trained 10 IT officers from Province 2 on OpenStreetMap, its uses and applications in local governance. We also led a focused group discussion on how open mapping can be utilised by municipalities, what features need to be mapped for the integration of OSM in local governance and challenges they foresee in this process. Hence, we will be discussing our methodological framework and challenges in involving local youths and leaders in open mapping and in contributing to develop more promising local level governance. We will also share how we gained needed support from the local units to coordinate with the youth of the community and the impacts we successfully created. This talk will be relevant to those interested in laying a strong foundation not only for good governance with the core idea of open mapping and its application at its center but also for involving local youth in the process. about this event: https://2022.stateofthemap.org/sessions/FABJFJ/

Understanding the limitations of data is hard. Some tags are missing, and some tend to be present only when others are. Is the missing tag saying something, is it just unknown? When tags take yes/no values, is a missing tag an implicit "no", maybe the tag "does not apply", or something else…? This talk doesn’t have answers. It’s the journey we took through an investigation of road data in London. What we found, what we think about what we found, and ideas of things to compute and visualise, before performing an analysis - or to decide if the data is just not suitable for this analysis. about this event: https://2022.stateofthemap.org/sessions/HZUFPQ/

We would like to share our feedback on facilitating OSM participatory mapping workshops for climate change adaptation projects with OSM local communities Since 2015, CartONG has been expanding its work into the domain of participatory mapping, first by partnering with the international Missing Maps project, and then by working to develop a wider set of tools and methodologies. Over the last 12 months, we had the opportunity to support two climate change adaptation projects, one in Tajikistan for the German Corporation for International Cooperation (GIZ) and the other in Madagascar in the Morombe region for Secours Islamique France. For these projects, we used geographic data and open source technologies, especially OpenStreetMap, and based on a participatory approach by mobilizing and fully involving local communities. We also worked to promote cooperation between the different actors in the region. At this conference, we want to share our field experience and approaches to increase the production and availability of geographic data in the concerned regions and initiate new groups of local contributors to enhance and maintain the OpenStreetMap database. about this event: https://2022.stateofthemap.org/sessions/N9VWB9/

Lightning talks ## AddressForAll Institute _by Thierry Jean_ ## ImproveOSM new data dumps _by Beata Tautan-Jancso_ The ImproveOSM platform is a suite of tools to share various mapping tasks containing potentially missing one-way tags, turn restrictions, and roads from the OpenStreetMap. The ImproveOSM data is also available as frequent data dumps in CSV format. ## Geohash plugin _by Beata Tautan-Jancso, Nicoleta Viregan_ Geohash is a plugin available in the JOSM tool, which comes to be handy for some of you who work in precise areas based on geohash units. The plugin displays a layer of grids on top of the map layer. In addition to the visualization feature, the plugin offers extra functionalities, and this talk aims to emphasize the diverse usages of this tool. about this event: https://2022.stateofthemap.org/sessions/ZVLDMZ/

OpenStreetMap consists of tagged nodes, ways and relations. Many use cases of geographic data, however, need a tabular dataset of points, lines and polygons. Processing OSM into derivative datasets is a crucial task that can benefit from new tools and formats. This talk will cover several topics around this theme, including: * Existing approaches such as the Export Tool * Why FlatGeobuf is a suitable forwards-thinking format * Computational challenges for processing global-scale relations * A new open-source program, Protoshapes, to generate admin polygons in FlatGeobuf format * Efficient approaches for global datasets such as coastlines, oceans, and road connectivity * Frequently updating datasets using the open-source OSM Express database about this event: https://2022.stateofthemap.org/sessions/VXECJQ/

Boundary conflation is a sensitive and difficult problem to solve. When administrative boundary data is available from authoritative sources for OSM, it is imperative that we have the ability to analyze boundaries for import and deduce if conflation with OSM ways can be done hopefully in a semi-automatic fashion. "Admin Boundary Conflation" is a special-purpose tool made for the purpose and this talk will introduce the workings of the tool to the audience along with the various output statistics available during the process. Currently, the tool is utilized for reporting geometric area differences of 0.01% in the 99th percentile of 5000 municipalities in Serbia within 20 minutes. about this event: https://2022.stateofthemap.org/sessions/HGFY7Z/

Usability testing can be done without hordes of users to observe, in fact just three people is likely to give very useful hints. And it is almost certainly more useful than expected, and your software is likely not as good as you expect. This is based on my experience with using user testing while developing StreetComplete. about this event: https://2022.stateofthemap.org/sessions/EHZQXV/

Presentation of the work we've done to adapt the OSM Carto style to vector tiles. We will take you through the making-of the cartography, step by step, scale by scale. Available on MapTiler Cloud (https://cloud.maptiler.com/maps/openstreetmap/), the style will be integrated into the next version of the OpenMapTiles project. We will also show you how to use this style in QGIS and how to display it on 3D maps with MapLibre. about this event: https://2022.stateofthemap.org/sessions/3EREXZ/

By 2025, HOT aims that communities in 94 countries vulnerable to disaster or experiencing multidimensional poverty are equipped and able to map the locations where they live and work. We believe that accessible mobile mapping tools are key to this effort. Since I started working for HOT in January 2022, I have done informal interviews, observations, focus groups and experiments with more than 100 regional users, primarily in East Africa, looking at the accessibility of current OSM mobile editing tools. Sharing this research with the wider community will help everyone build technology that fits the needs on the ground. For 3 months, with the support of OpenMap Development Tanzania (OMDTZ) and the State University of Zanzibar (SUZA) Youth Mappers, I did a variety of informal interviews, observations, focus groups, and experiments with individuals and local OpenMapping organizations, primarily in East Africa. My research included professional data collection campaigns, as well as entry-level community members whose first encounter of OSM was during one of my workshops. While the majority of my research focused on 5 main Open Source applications that are already in widespread use (StreetComplete, OsmAnd, Organic Maps, Vespucci & ODK Collect), many of the insights gained from this research, including data about hardware availability and current phone use, are applicable to anyone building mapping tools, especially those that will be used in low-resource environments. The HOT _tech team aims to do more than just talk. Analysis of the research will be followed by specific suggestions for those doing mobile OSM mapping, especially at the entry-level, as well as technical proposals for tooling improvement. We will be working with the existing OSM ecosystem to design and implement these proposals in a way that is inclusive and sustainable. Feedback is most welcome. about this event: https://2022.stateofthemap.org/sessions/UWHAME/

MapRoulette was first announced at State of the Map US in 2012 as a tool to solve the many errors introduced by the import of TIGER road data in the United States. Since then, MapRoulette has been used for map improvements and guided data imports around the world. In this talk, MapRoulette creator Martijn van Exel will look at some of the achievements, lessons learned, and the evolution from a single purpose tool to a micro-tasking platform. [MapRoulette](https://maproulette.org), the open source web-based micro-tasking platform for OSM, was first announced at State of the Map US in 2012 as a tool to solve the many errors introduced by the [import of TIGER road data](https://wiki.openstreetmap.org/wiki/TIGER) in the United States. After a successful and quick cleanup of over 60.000 common problems found in the TIGER data, it was clear that the idea of a micro-tasking tool was worth developing further. Over the years, MapRoulette gained a lot of functionality while staying true to its original goal: supplying the OSM communuty with quick, easy to solve tasks that help fix or improve the map. Nowadays, anyone can create tasks [using Overpass](https://learn.maproulette.org/documentation/using-overpass-to-create-challenges/#content) or GeoJSON, there are [new task types](https://learn.maproulette.org/documentation/creating-cooperative-challenges/#content) that make fixing problems in OSM even easier, and there is support for working in teams. In this talk, MapRoulette creator Martijn van Exel will look at some of the accomplishments and lessons learned in 10 years of MapRoulette, and highlight some interesting uses of MapRoulette over the years. If time allows, he will also show some of the newer functionality that may not be as well known even to experienced users. about this event: https://2022.stateofthemap.org/sessions/RRUH8S/

OpenStreetMap is the human-made map of the world. But how can one tiny human still make a difference in a project used by megacorps and crucial to millions of app and website users every day? How does OSM retain its individualism in a world that wants it to be consistent, orderly and predictable? Is it game over for the experimental, iconoclastic, independent map? Richard Fairhurst offers a challenging but upbeat look at the changing landscape for the OpenStreetMap mapper, user and developer. 2004: A crazy hobby project. One street mapped. One small mailing list. 2013: Edited by thousands every day. Beloved by hobbyists. Trialled by a few adventurous companies. 2022: The world's map. Worth billions. Used by everyone. What happened? Is there still a place for the individual in OSM, as mapper, user, or developer? How do you build with OSM when your competitors have free money on tap? Can OSM retain its iconoclasm and individualism when the Silicon Valley behemoths are involved? Richard Fairhurst is still as idealistic as in 2004 (but maybe a little calmer) and thinks that corporate OSM and independent OSM can co-exist, and better still, benefit from each other. In a wide-ranging, rollicking and occasionally factually accurate talk, he'll look at the OpenStreetMap economy in 2022 and how individuals can still make a difference. Expect: the secretive Kindred of the Kibbo Kift, situationists, books about pubs, bouncing phones. about this event: https://2022.stateofthemap.org/sessions/URUJH8/

The opening session of the State of the Map 2022 conference. about this event: https://2022.stateofthemap.org/sessions/QFUTA7/

In diesem Petit Foo geht es um eine häufige und bekannte Hacking-Technik: Denial of Service (DoS) Angriffe. Ich werde erklären was Denial of Service bedeutet und was ein Angreifer damit erreichen kann. Außerdem werde ich zeigen, welche Abwehrmechanismen existieren. about this event: https://www.chaospott.de

Hilfe, ich habe eine wichtige Datei gelöscht! Oh nein, meine SD-Karte mit den Fotos ist nicht mehr lesbar! In diesem Petit Foo stelle ich das Tool Photorec vor mit dem man gelöschte Dateien wiederherstellen kann und gebe Tipps zur Verwendung. about this event: https://www.chaospott.de

BornHack 2022 is almost over at this point. We would like to say farewell for now and see you again at the next event in 2023. We will walk over what we believe has worked and what we believe should change the next event. This is an excellent opportunity to submit ideas for BornHack 2023 while the memories are still fresh. about this event: https://c3voc.de

Most companies struggle with implementing DevOps culture, and end up with creating yet another silo and naming it DevOps instead, where all the brightest operations people with infrastructure skills go. But going from the obvious anti pattern, that a DevOps silo is, to something better is a journey and not something most organisations manage to do quickly if at all. I'd like to take you through the journey that Universal Robots has had, and explaining step by step what the challenges are, both technical and engineering related. Furthermore I'd like to show a few examples of tooling in the robotic world, where cloud native and Kubernetes are not always available, as well as point to areas where robotics is "just software like the rest". The talk deals with different archetypes and anti patterns of DevOps, and ends up with how to scale the DevOps setup, onboard management and give them their beloved governance in a way that a developer can stand it. about this event: https://c3voc.de

Come and meet the network team who will talk about the design and operation of the network at BornHack. about this event: https://c3voc.de

On the last night of bornhack 2021, the NOC team challenged pyjam.as to exhaust the bornhack uplink with useful activity. This talk is about the succeess or failure of our efforts to do so. about this event: https://c3voc.de

The BornHack game team will talk about our experiences at this years BornHack and show some stats of our game events. ¯\_(ツ)_/¯ ffwf863YbZaxXSP about this event: https://c3voc.de