Chaos Computer Club - archive feed

Vortrag zu 10 Jahren Geschichte des Autonomen Zentrums Köln, Praktiken der AZ-Bleibt! Kampagne und der näher rückenden Räumungsbedrohung ab Mai 2021. Autonomes Zentrum Köln – Unkommerzieller, selbstverwalteter Ort für Kunst, Kultur, Bewegung und linksradikale Politik about this event: https://c3voc.de

Der Bundesbeauftragte für den Datenschutz ist auch Hüter der Informationsfreiheit, also Sachwalter für die Transparenz der öffentlichen Verwaltung. Transparenz ist selbstverständlich auch im Datenschutz ein ganz entscheidender Erfolgsfaktor. Denn die Beherrschbarkeit und Rechtmäßigkeit einer Datenverarbeitung setzt voraus, dass transparent wird, welche Daten in welcher Weise verarbeitet werden. In der Keynote beleuchtet der BfDI vor allem drei Aspekte: - Open Source schafft Transparenz, Sicherheit und fördert so den Datenschutz - Open Source schafft Vertrauen – die Corona-Warn-App als Blaupause - Open Source führt zu mehr Souveränität about this event: https://programm.froscon.de/2020/events/2627.html

In recent years, the DevOps movement has grown massively in popularity. For some it made life easier, for others there were no changes and for others it has become "worse" since then. If you belong to the latter group and have ever thought that you are alone in this respect, you are wrong. Obviously, some of these deteriorations are due to the fact that DevOps is implemented "wrong" or inconsistently in the workplace. This talk will give an overview of real life observations made in DevOps environments. It might include some of the nice, some of the bad and some of the ugly solutions you might encounter. On the positive side, suggestions are made on how to deal with these problems. about this event: https://programm.froscon.de/2020/events/2587.html

A virus caused a lot of teams to move to a remote first setting in the matter of a few days. Too often the result was teams emulating office settings with remote video conferencing. In this talk we will look closer at how Open Source projects succeed in handling highly distributed teams. We will look at patterns that can be applied inside of companies to make not only remote work more efficient. As a side effect we will see how adopting Open Source collaboration patterns on the inside will lower the barrier to contribute to regular, public Open Source projects. about this event: https://programm.froscon.de/2020/events/2593.html

Activity trackers are used in a wide range of research, from movement science to psychiatry, from criminology to rehabilitation science. In this talk, we will outline the requirements for activity trackers to be used as research devices. Legal and design aspects will be highlighted as well as the view from data science and field research. We will show how an open source alternative to the currently used devices is a ( is the only?) way forward. Activity trackers, such as fitbits are widely used amongst researchers to collect physiological and behavioral data in lab settings as well as in natural settings. In this talk, we will focus on data collection in natural settings and first outline the requirements a research device has to fulfill. More specifically, we will highlight the data privacy and protection aspects, as well as aspects of data collection that allows not only social scientists to use the data but also data scientists to learn from the collected data. In the second half of the talk, we will first present the platform we developed to collect data with a Samsung customer grade fitness tracker and then suggest an open source and open hardware solution to overcome the obstacles that researchers currently face. The first design decisions to create a community lead platform are presented and the design process highlighted. In the last part of the talk, the audience is invited to contribute with feedback in a structured manner, to make the next steps towards a modular and open Fitnesstracker for research purposes. The work on the Samsung platform is done in cooperation with Peter Bosch, Lieuwe Rooijakkers and Frederick van der Meulen (all CS students at Leiden University). The work on the process design has been done together with Assia Kraan (Hogeschool Amsterdam), Ricarda Proppert (Leiden University) and Klodiana-Daphne Tona (Leiden University and Medical Center). about this event: https://programm.froscon.de/2020/events/2591.html

In diesem Talk aus der Praxis für die Praxis beleuchten wir drei Perspektiven der gesellschaftlichen und digitalen Veränderungen unter dem Coronavirus: Wie verändert sich das Leben für Arbeitnehmer, für die Wissenschaft und Forschung sowie in der schulischen Bildung. Wir wollen uns gemeinsam Zeit nehmen der Gruppendynamik nachzuspüren, die die Verwendung von FOSS in all diesen Bereichen deutlich zurückgeworfen hat und die Perspektiven und Möglichkeiten diskutieren, die sich aus dieser Situation ergeben. Durch die Entwicklung des Coronavirus wurde unsere Gesellschaft in eine Situation gezwungen, die es vorher so noch nicht gab. Dies hat starke Auswirkungen auf den Einsatz und die Verwendung von FOSS in gesellschaftlich relevanten Bereichen wir Arbeit, Bildung und Forschung. In diesem Talk beleuchten wir drei Perspektiven der gesellschaftlichen und digitalen Veränderungen unter dem Coronavirus: Wie verändert sich das Leben für Arbeitnehmer, für die Wissenschaft und in der schulischen Bildung. Wir wollen uns Zeit nehmen mit vielen Beispielen und Beiträgen aus verschiedenen Perspektiven, u.a. aus dem Bildungsbereich und der biomedizinischen Forschung der Gruppendynamik nachzuspüren, die die Verwendung von FOSS in all diesen Bereichen deutlich zurückgeworfen hat und die Perspektiven und Möglichkeiten diskutieren, die sich aus dieser Situation ergeben. Wir finden uns auf einmal in einer Situation wieder, für die wir noch wesentlich mehr gesellschaftlichen Konsens und noch wesentlich mehr technische Überlegungen und Konzepte gebraucht hätten. Interessanterweise hätten wir diese Entwicklungen aber auch schon lange kommen sehen können. FOSS wurde zwar in den letzten Monaten aus vielen Bereichen des täglichen Arbeitens verdrängt. Die aktuelle Situation ermöglicht aber auch endlich lange nötige Rekurse und wir wollen mit einem positiven Ausblick schließen. about this event: https://programm.froscon.de/2020/events/2574.html

Admins vereinfachen sich heutzutage den Arbeitsalltag durch den Einsatz von Automatisierungstools wie Ansible, Salt-Stack und Puppet. Aber dann ist da noch das lästige Thema mit der Dokumentation und ist diese überhaupt auf dem aktuellen Stand? Dies führt zu der Frage, ob sich Management Tools nicht mit der Dokumentation der Infrastruktur kombinieren lassen. Zu diesem Zweck gibt der Vortrag einen Einblick in Ansible und NetBox und zeigt, wie deren Kombination für die Verwaltung der eigenen Systeme eingesetzt werden kann und so dem Admin die Arbeit erleichtert. Der Vortrag richtet sich an Admins, die größere Netzwerkumgebungen verwalten und bringt diesen die Kombinationsmöglichkeiten von Automatisierungstools und Dokumentationstools am Beispiel von Ansible und NetBox näher. Beide Tools werden zu Beginn einzeln vorgestellt und es wird ein Einblick in den relevanten Funktionsumfang gegeben. Dies sind unter anderem die dynamischen Inventories bei Ansible und die API von NetBox. Der zweite Teil des Vortrags beschäftigt sich mit den Kombinationsmöglichkeiten beider Tools und zeigt die Funktionsweise bei einer Live-Demo. Zusätzlich wird auf Nachteile und Schwierigkeiten eingegangen, die bei der Abbildung der Konfiguration zwischen NetBox und Ansible auftreten. about this event: https://programm.froscon.de/2020/events/2580.html

While the Corona crisis turned our world of work upside down, it has taught us that core beliefs and practices are what matter. What happened The reaction Adjusting to remote work Settling down to home office work One size doesn't fit all Two worlds: singles and families Conclusion about this event: https://programm.froscon.de/2020/events/2573.html

Privacy is just an additional burden, in particular these days? Let's relax the GDPR requirements, is what lobbying associations are currently claiming. This talk is pleading for why the privacy principles, in particular the concept of privacy by design, are also supporting and protecting companies' information and business secrets. Privacy by design - meaning taking privacy into account throughout the whole engineering process - is a concept that was developed 10 years ago by the former Information and Privacy Commissioner of Ontario, Ann Cavoukian. In 2018, when the GDPR was becoming effective, Privacy by Design was for the first time an enforceable concept in the European Union (EU) and for the member states of the European Economic Area (EEA). Violations can be punished with fines of up to EUR 10,000,000 or up to 2 % of the total worldwide annual turnover of the preceding financial year, whichever is higher. Nevertheless, the obligations of controllers to comply with the principle of privacy by design seem to be either falling under the radar of many companies or are just not as prominent as popular and visible obligations like information requirements or data processing agreements. The following will engage with why the principle of privacy by design shouldn’t be underestimated. about this event: https://programm.froscon.de/2020/events/2568.html

Berichtswesen klingt langweilig... bis man es mit der richtigen Technologie würzt. Kafka, Cassandra, und dazwischen Ignite als In-Memory-Computing-Plattform. Mit diesen Zutaten aus dem Apache-Universum wird jedes Projekt spannend. Vor drei Jahren haben wir bei Capgemini ein Projekt für die Entwicklung einer Individualsoftware begonnen, für das sich unser Kunde vorrangig die Nutzung von Open Source-Komponenten als Bestandteil der fertigen Lösung gewünscht hat. Die Anforderungen des Projekts waren ambitioniert. Für das Analytik-System, das neben dem klassischen Berichtswesen auch eine Echtzeitdarstellung des aktuellen Zustands sowohl der technischen Systeme als auch der fachlichen Abläufe liefern sollte, erhielten wir ein Mengengerüst, das wir weder einem klassischen RDBMS noch der uns angebotenen Alternative Apache Cassandra zutrauten. So kamen wir zu der Entscheidung, dass wir eine In-Memory-Plattform brauchten. In der Open Source-Welt wurden wir fündig: Apache Ignite wurde die Basis unserer Analytik-Anwendung, und über zwei Jahre lieferten sich unsere Anforderungen einen Wettlauf mit den Features, die Ignite mit jeder Version dazu bekam. Heute sind die ersten Features seit zwei Jahren in Produktion, und wir haben uns wieder vom Ritt auf der Rasierklinge erholt. Dieser Vortrag ist für alle, die sich ihren eigenen High-Performance In-Memory-Cluster wünschen. about this event: https://programm.froscon.de/2020/events/2596.html

about this event: https://programm.froscon.de/2020/events/2626.html

Im März 2020 wurden alle Orte der Kunst und Kultur geschlossen – Shutdown! So auch das Gängeviertel, die Clubs und Bars, die Ausstellungsflächen, Theater, Werkstätten und Probenräume, Orte des Austauschs und des Experiments, Räume die eigentlich allen offen stehen sollten, der Virus hat die Türen zu fallen lassen. Eine Pandemie, die wir alle sehr ernst nehmen, die aber auch viele von uns in Existenznöte gebracht hat. In den letzten Monaten hat sich gezeigt welchen Stellenwert die Kultur für eine Stadt wie Hamburg hat, wie wichtig die Menschen sind, die diesen Betrieb von Herzen und mit viel Erfindungsgeist gestalten. Es zeigt sich was fehlt und wie die Kunst und Kultur die Gesellschaft prägt. Wie geht es weiter, wie können wir trotz der Verordnungen und Gefahren einen Betrieb wieder zum Laufen bringen? Wie werden die Arbeitsbedingungen aussehen? Zeigt uns Corona auch Chancen auf? Was kann die Politik dafür tun, dass wir alle überleben können? Zu Gast sind Thore Debor (Clubkombinat), Barbara Schmidt-Rohr (Dachverband freie darstellende Künste), Bianca Möllner (Berufsverband bildender Künstler*innen) und Niels Boeing (Barkombinat), Christine Ebeling (Gängeviertel) führt das Gespräch über den Zustand und die Zukunft von Kunst und Kultur und ob sich eine Chance für eine freie und Kulturstadt am Horizont abzeichnen kann. about this event: https://c3voc.de

Die Wahlumfragewerte sinken, die Klicks von Posts fallen und auch die Likes brechen ein. In den vergangenen Wochen hat die AfD an Popularität verloren. Die eigene Community wendet sich anderen Populisten zu. In der Pandemie konnte die AfD sich kaum inszenieren. Die verschiedensten Verschwörungsideologien werden von anderen Akteuren wesentlich erfolgreicher popularisiert. In der Öffentlichkeit treten immer mehr Personen ohne rechtsextreme Vita auf, die sich auf alte und neue Verschwörungen beziehen. Die AfD versucht nun diese Bewegung als neuen „Freiheitskämpfer“ gegen die Corona-„Maßregelung“, anzuführen. Doch auch hier belastet der anhaltende Richtungsstreit über den ehemaligen Brandenburgischen Landtagsfraktionsvorsitzenden Andreas Kalbitz die Ausrichtung. Nicht alle in der AfD setzen bewusst auf das Narrativ der Verschwörungen. Andreas Speit stellt die aktuelle Entwicklung der rechtspopulistischen Szene mit den Akteur*innen und Verschwörungsideologien dar und lädt mit Thesen zur Diskussion ein, wie diesen Entwicklungen sinnvoll begegnet werden kann. about this event: https://c3voc.de

Das Zentrallabor wird ein Raum gemeinsamen Lernens und Forschens rund um Mikrobiologie und Biotechnologie. Wir arbeiten an der Entstehung eines FabLabs speziell für Biologie-Interessierte. Wir werden mit dem gemeinnützigen Verein, dem Aufbau des Labors und weiterer Testfelder euren Ideen Raum zu geben. Wir möchten euer Interesse wecken, Wissensdurst stillen und Wissenschaft für jedermann zugänglich machen. So wollen wir uns gemeinsam den Problemen der Bioökonomie aus Land-, Forst- und Energiewirtschaft widmen, um nachhaltige Lösungen zu schaffen. Wie das konkret aussehen kann, wo wir aktuell stehen und wo wir auf eure Ideen und Unterstützung angewiesen sind - das möchten wir euch mit diesem Vortrag gern näherbringen. Sebastian Wendel arbeitet als Softwareentwickler im Bereich der industriellen IoT. Sebastian Hinz ist gelernter Biotechnologe und Bioinformatiker, auch er arbeitet seit einigen Jahren als Softwareentwickler. Beide lieben das Netzwerken und das Arbeiten an Gemeinschaftsprojekten. So lernten sie sich in den offen Werkstätten des Gängeviertels kennen und arbeiten nun mit vielen Anderen an der Vision und dem Projekt im Hamburger Oberhafen. about this event: https://c3voc.de

Zarah von dem Fuck Yeah Sexshopkollektiv will mit euch im Rahmen der Veranstaltung ins Gespräch kommen. Wie passen feministische Vorstellungen von Körper, Begehren, Gender und Sex mit einem Sexshop zusammen? Welche Chancen kann ein solcher Raum bieten? Lassen sich politische Ideale mit den Sachzwängen der kapitalistischen Logik zusammenbringen? Ausgangspunkt sind dabei die praktischen Erfahrungen des seit zwei Jahren bestehenden Sexshops und die vorangegangen Überlegungen diesen zu Eröffnen. Offen für alle gender. about this event: https://c3voc.de

TVLuke hat in den letzten Jahren viele Häuser im Flat-Design erstellt. Ein paar einfach Grundregeln, wie man sowas einfach umsetzen kann stellt er in diesem Video vor. Ein Vortrag im Rahmen der Fünf-Minuten-Termine. Die Idee ist einfach: An jedem vierten Mittwoch des Monats nutzen wir das volle Haus zum Open Space / Chaostreff und jede Person, die möchte, kann kurz vorstellen, was auch immer ihr vorschwebt. about this event: chaotikum.org

Beim Fotografieren des Nachthimmels muss man verschiedene Faktoren beachten, darunter die Belichtungsdauer und die ISO. Um dennoch leuchtstarke Fotos der Sterne zu erhalten kann man Stacking nutzen. Fabi erklärt, was das ist und wie das geht. Ein Vortrag im Rahmen der Fünf-Minuten-Termine at Home. Die Idee ist eigentlich einfach: An jedem vierten Mittwoch des Monats nutzen wir das volle Haus zum Open Space / Chaostreff und jede Person, die möchte, kann kurz vorstellen, was auch immer ihr vorschwebt. Diesmal wegen Corona-Krise von Zuhause. about this event: chaotikum.org

Maps! Maps! about this event: https://2020.stateofthemap.org/sessions/VTDQPZ/

Surprise, surprise! Surprise, surprise! about this event: https://2020.stateofthemap.org/sessions/7LWKCA/

Walkability is the foundation for urban life that is sustainable, inclusive, healthy, and dignified. Pedestrians First is a new open-source suite of tools for using OSM data to measure indicators of urban walkability. During this talk, we will examine the nature of walkable and unwalkable cities, we will discuss the opportunities and limitations of using OSM to measure walkability, and we will consider possible avenues for extending Pedestrians First in the future. Few modern cities are walkable. Around the globe, cities have been designed for cars rather than pedestrians, resulting in enormous costs to the environment, the economy, and even the social fabric of our communities. In the face of the climate crisis, there is an urgent need to build cities that are sustainable and inclusive. Responding to that need, the Institute for Transportation and Development Policy has released Pedestrians First, a tool that supports planners and decision-makers by using OSM to measure what matters for walkability in cities. This talk will describe what makes a city walkable, discuss the experience of using OSM to measure walkability, and explore possibilities for improving that measurement in the future. Because the experience of walking is so natural, it is easy to assume that planning walkable cities is equally simple. That is far from the case. To be walkable, a city must prioritize pedestrians not only in urban design but also in land use and transportation planning. Some factors, like sidewalk quality, matter at the small scale, the level of the street or the city block. Other factors matter at the level of the neighborhood, such as the proximity of destinations, and still others are at the level of the entire city, like the ability of a public transit system to move pedestrians from one neighborhood to another. We have found OpenStreetMap an invaluable tool in identifying and measuring the most important elements of walkability. Certain aspects of the OSM data model have been critical to the success of the project, especially its emphasis on representing connectivity, its typology of streets, and its relative uniformity around the world. However, other aspects have been challenging to work with, and prevent us from measuring other important indicators of pedestrian-friendliness. For example, it is still difficult to clearly represent the presence and quality of sidewalks in OSM and assessing the safety of street crossings remains a pressing concern. There are many opportunities to expand Pedestrians First. We are exploring possibilities that include computer vision to identify street assets, integration of traffic data, and measurement of multimodal access to opportunities. We hope to join conversations about how best to implement such approaches within the OpenStreetMap community. With offices in Brazil, China, India, Indonesia, Kenya, Mexico, and the United States, the Institute for Transportation and Development Policy has advocated for sustainable urban transport since 1985. A non-governmental organization striving for inclusive cities, ITDP is dedicated to openness of information and techniques. about this event: https://2020.stateofthemap.org/sessions/RANPLK/

A summary of trademark law basics and an explanation of the OSMF Trademark Policy and how it applies. The purpose of this talk is to give those interested a foundational explanation of what trademark law is and how the OSMF Trademark Policy works. There have been several questions raised to LWG regarding the OSMF Trademark Policy and how it applies in certain circumstances. Trademark law is often conflated with other types of intellectual property law and the scope of trademark rights is not well-understood. In addition, the LWG sometimes fields questions from OSM users or groups on how to use the Trademark Policy and forms and templates mentioned in the policy. This talk will go over some common questions and give the audience a chance to ask more. Outline for the talk: Trademarks 101: What is a trademark? (vs other forms of intellectual property, like copyright, data rights, patent, trade secrets, publicity rights) How do you get trademark rights? - Trademarks are jurisdictional - Acquiring rights via usage - Trademark registration Trademark use vs not trademark use - Using a term "as a mark" - Sponsorship/endorsement - What trademark doesn't protect - fair uses OSM trademarks: - The OSMF Trademark Policy - Common uses - Pre-policy use cases - Domains - Using the permission template Questions! about this event: https://2020.stateofthemap.org/sessions/JYWQX3/

Lightning Talk session ## [Divide and map. Now.](https://wiki.openstreetmap.org/wiki/Divide_and_map._Now.) *Jiri Vlasak* - [Website](https://www.damn-project.org/), [Slides](https://qeef.gitlab.io/talks/damn-lightning-talk/) The damn project helps mappers by dividing some big area into smaller squares that a human can map. ## Mapping Historically Black Colleges and Universities in OSM *Harrison Cole* Historically black colleges and universities (HBCUs) are schools that were established exclusively for Black Americans prior to 1964. As of June 19th, 2020, their campuses are disproportionately undermapped in OSM relative to institutions with predominately white student populations. After putting out the call to map these campuses, volunteers have come together to submit thousands of edits and ensure that the campuses are represented properly. In this talk, I give a brief overview of how far the effort has come, and what still needs to be done. ## DDD123-OSM: 2D and 3D render toolchain *Jose J. Montes* Introducing the toolset we are building to generate 3D models from OpenStreetMap data, used in our under-development "racing in your own city" game, and sharing some pictures and videos. ## OSGeo + OSM *Enock Seth Nyamador* - [Slides](https://enockseth.github.io/sotm-2020-osgeo-plus-osm-lightning-talk-enyamador/) Quick introduction to Open Source Geospatial Foundation (OSGeo) and highlighting projects for working with OSM Data. ## Tasking Manager 4 Tour *Wille Marcel* The new version of Tasking Manager, released on April 2020, has a new completely redesigned interface. This talk is a guided tour on the main parts of Tasking Manager 4. ## Uses of Mapping for Community Care During the Pandemic *Andi Tabinas* How were we able to use maps for community care during the COVID-19 situation in the Philippines? Through this lightning talk, I would like to share about how our volunteer organization, Mental Health AWHEREness, has been using maps and OSM data for community care in the Philippines. ## OpenStreetMap Data Pacific *John Bryant* Interest in open geospatial is growing in Pacific Island countries, where budgets and data availability are big problems, but the OpenStreetMap community in the region is still small. This project aims to introduce Pacific "geo" people to OSM by providing a weekly extract of 14 countries in a GIS-friendly format, bundled with a QGIS project and enhanced with some basic cartography. ## Hikar.js - bringing Hikar to the web *Nick Whitelegg* Hikar is an augmented reality app which overlays OSM ways on the camera feed of an Android device, and was presented last year at SOTM Heidelberg. The past year has seen a surge of interest in the three.js and A-Frame based augmented reality library AR.js, which allows AR apps to be developed for the web. This lightning talk summarises efforts so far to port Hikar to the web using AR.js. ## [Mapathon Keralam](https://wiki.openstreetmap.org/wiki/Kerala_State_IT_Mission) *Amitha K Biju* Mapathon Keralam is being coordinated by the Kerala State IT Mission, with the concept of Let Us Make Our Map. about this event: https://2020.stateofthemap.org/sessions/QYYC9T/

Today, nearly 17% of the global road network was last edited by a corporate data-team member. We further investigate unique editing patterns among three corporations that have specific, localized impacts on the map. **Introduction** OpenStreetMap (OSM), the largest crowdsourced geographic database has garnered interest from corporations over the last four years. Today, major corporations including Apple, Facebook, and Microsoft have dedicated teams contributing to OSM. More than 2,300 OSM editors are associated with corporate data teams, up from approximately 1,000 in 2019 [1]. As of March 2020, nearly 17% of the global road network (measured per kilometer) was most recently edited by a corporate data-team member. Each corporation edits according to their own agenda; displaying unique patterns of edits with respect to types of features edited, mode (manual, import, or machine assisted), and locations and volume of edits. **Aim** We investigate the unique editing patterns associated with three corporations: Grab, Digital Egypt, and Tesla, the latter two’s editing activity has never previously been quantified. Differing from other corporations with high volumes of global editing [1], these corporations exhibit uniquely specific patterns. **Methodology** We use a combination of OSM data processing pipelines including tile-reduce, osm-qa-tiles, and osm-interaction tilesets [2] to extract and quantify the edits associated with the corporations. **Results and Discussion** **Grab** is a Singapore-based company active in South-East Asia offering ride-hailing transport food delivery, and payment services. Grab is actively editing OSM data since 2018 and has thus far edited 1.6M features. Grab’s focus on transport related services implies that a navigable road network is a priority. However, topology and navigation restrictions are difficult to encode. Grab dedicates efforts to improve road navigability. In Singapore, Grab has edited over 100,000 turn restrictions, comprising 95% of all turn restrictions in Singapore (and 7% of all turn restrictions globally). This represents a highly focused effort put in by a corporation in a specific place to build infrastructure needed to support their business. Overall, Grab’s efforts of improving data and building a community of editors in South-East Asia is beneficial for the OSM ecosystem. **Digital Egypt (DE)** aims to produce detailed and accurate GIS and Mapping data in Egypt, Middle East and Africa. Active in a part of the world with sparse geographic data coverage, Digital Egypt’s team of 24 mappers works to improve the accuracy of OSM, specifically as it relates to improving address information for improved geocoding in Egypt [3]. As of March 2020, DE has edited more than 2M features, more than 1.7M of these edits involve objects with address tags (e.g. addr:housenumber). These edits comprise 94% of the objects in Egypt that have an address tag. Similar to Grab, DE’s contributions improve the usability of OSM data for everyone. Unlike Grab, DE does not operate services built on top of this data infrastructure. Their hyperlocal focus and dedication to improving data for a country with a dearth of spatial data distinguishes them from other corporations using map data in a product. **Tesla**—an American manufacturer of electric cars—was revealed to be using OSM parking aisle information for their vehicle’s self-driving “summon” feature in a blog post in November 2019 [4]. To function properly, the summon feature requires detailed maps of parking aisles within larger parking lots. These data were relatively sparse, as their utility to the overall map is minimal compared to the actual road network. However, the number of parking aisles added to OSM in North America has increased by approximately 71% in 2018-2020 from an average of 322 ways per day in 2016-2018. While there is no official Tesla data-team that is mapping these features, in the days following the blog post, the number of new OSM editors adding parking aisles within their first day of editing jumped from an average of 1.5 to 10. A single blog post inspired dozens of Tesla fans to join OSM and add new parking aisles to the map, thereby mapping a specific feature type for a narrow purpose. These Tesla owners represent a new generation of hobby and “craft mappers” in OSM. Unlike traditional ‘craft-mappers’ considered to altruistically contribute map data about specific features, the Tesla mappers create data intended to be consumed by a corporation to enhance the experience for a select group of motorists. If looking to categorize these new mappers into prior community labels, their mapping practices have more in common with a “traditional craft-mapper” than a paid, corporate mapper. Grab, Digital Egypt, and Tesla represent three distinct cases of corporations consuming, contributing, and driving further interest in OSM. **References** https://docs.google.com/document/d/183aN5Ph2KGuR6iBE_i8j-mL8h2saH3EYU65WMrZWNsw/

OSM is more fun and useful with quicker access to fresh data. New web services, tools and file formats enable mappers to download and use edited data within minutes. Workflows for adding data to OpenStreetMap keep getting better - but once an edit is uploaded, it can take a long time to appear on hosted map tiles or regional OSM extracts. The experience of downloading and using OpenStreetMap can be improved by quick access to fresh data - a fast feedback loop makes contributing to OSM more enjoyable! The first part of this talk covers a new web service, Minutely Extracts (protomaps.com/extracts). Mappers can download rectangular or polygon regions of the world, with changes replicated every minute from planet.openstreetmap.org. I’ll show some example workflows for using Minutely Extracts with common GIS applications such as QGIS, and new tools for conversion to formats like GeoPackage and Shapefile. The second part of this talk describes OSM Express (osmx), a new spatially indexed file format powering Minutely Extracts, that supports in-place updates. Developers needing random access to OSM objects can consider embedding osmx as a library. Near real-time editing activity visualization is one possible use case. I’ll review the technical tradeoffs between using osmx, PBFs and other popular formats. Financial Background: The software is developed as open source, under a BSD license, and funded by the author's commercial OSM-based SaaS services as well as OSM contract software development. about this event: https://2020.stateofthemap.org/sessions/JDNTHK/

We outline methods for a) extracting the geometry of street blocks in urban centres using OSM and remote sensing data, b) generating approximate cadastral maps of a block given contained building footprints, and c) quantifying residents’ ability to navigate within blocks through topological analysis of cadastral maps. This topological metric, termed “spatial accessibility” and denoted k = 1, 2, 3, ..., determines whether areas of a city are informal settlements, as blocks where k > 2 contain cadastral parcels without direct access to formal road networks. We analysed 1 terabyte of OpenStreetMap data for 120 low and middle income (LMIC) countries. Determinations of whether a neighbourhood is underserviced depends greatly on local concerns, however topological analysis of building footprints in relation streetlevel access offers a pathway to near-universal criteria for determining whether a neighbourhood is potentially a slum or urban informal settlement. With a topological approach, it is possible to determine the number of building parcels a streetblock inhabitant must cross to access a potential services bearing street, i.e. one that enables for example access to emergency services, sanitation and piped water. Focusing on topological invariants allows us to analyse cities without respect to the specific morphology of their street network [1]. To create a global index of these under-serviced neighbourhoods, we extracted open-source data on building footprints and street networks and applied a topological analysis to each extracted street block to characterise the level of spatial accessibility. Using these techniques, we analysed 1 terabyte of OpenStreetMap (OSM) data to create an index of street block geometry, cadastral maps, and spatial accessibility calculations for 120 Low and Middle Income Countries (LIMCs) in the Global South. These results highlight the developing world’s most spatially inaccessible communities, enabling prioritisation of infrastructure investment and further study. The primary data universe for our work involves three entities: 1) administrative boundary polygons, 2) building footprint polygons, and 3) street network line-string collections. The administrative data boundaries were sourced from the Database of Global Administrative Areas, while building footprints and street networks were sourced from OSM. Since OSM does not provide direct downloads, the data under consideration was obtained from a mirror of OSM hosted by GeoFabrik. This data reflects a snapshot of OSM as of July 2019. Starting with the initial road network, the geometry of the street network can be extracted via the well-studied process of polygonization. In polygonization, the self-intersections of the street network are determined in order to define the block geometry. Most GIS software packages offer a polygonization feature (e.g. ST_MakePolygon from PostGIS). In implementation, however, we found a set-theoretic approach to be more stable and performant [2]. By buffering the one-dimensional line-strings comprising the street network with a small buffer radius, we obtain two-dimensional polygons capturing the outline of the street network. We then find the set-theoretic difference between the administrative boundary polygons and the buffered road-network polygon; this renders the negative area between the road network geometry as a collection of polygons. These negative areas are precisely the street blocks we are trying to extract. With each building’s access to the formal road network - or lack thereof - analysed, we can also provide suggestions to the local community about ways to connect each building to the existing road network while respecting existing building footprints. This process, known as re-blocking, is in general, NP-hard. In contrast to previous algorithmic re-blocking efforts involving stochastic graph search [3], we approach the problem using Steiner tree approximations to the optimal road network. To frame the universal access network as a Steiner tree problem, we segmented the building parcel boundaries to create “non-terminal” nodes at each segment boundary, and create a “terminal” node for each building parcel lacking direct street access by placing a node on the non-street parcel boundary closest to the building. We then construct a complete subgraph of all the terminal nodes, where the weight of each edge is the Euclidean distance between each pair of terminal nodes; each existing road segment has zero weight. Solving the minimum-spanning tree problem on this subgraph, and then recovering the original path segments, gives us the optimal new road network. In the short future, we hope to repeat our analysis on denser sources of data on footprints and street network data from other providers (such as private satellite imagery companies). We expect that while OpenStreetMap has good coverage in some areas, we can use data in which footprints are automatically extracted from satellite imager

Since 2010 organized humanitarian mapping has evolved as a constant and growing element of the global OpenStreetMap (OSM) community. We analyse the history of humanitarian mapping using OpenStreetMap History and OSM Tasking Manager (tasks.hotosm.org) data. We conduct a comprehensive quantitative analysis on a global scale and long term perspective to depict more than just snapshots of individual events. Results show that in regard to edits, users, projects, geographic diversity, almost all of these have experienced linear growth. But regarding user commitment and validation efforts we conclude that the humanitarian mapping community still faces huge challenges to achieve sustainability. ## Introduction Since 2010 organized humanitarian mapping has evolved as a constant and growing element of the global OpenStreetMap (OSM) community. In the last few years, several researchers have analyzed humanitarian mapping practices (e.g. Zook et al. 2010, Soden et al. 2016, Dittus et al. 2017), however most of this work was either event-driven or focused on specific time periods and regions. The OSM ecosystem and the actors involved in it are constantly changing and emerging, for instance also due to the mapping activities of corporates (Anderson et al. 2019). ## Purpose of this study In our work we analyse the history of almost 10 years of humanitarian mapping in OpenStreetMap using the OSM Tasking Manager (tasks.hotosm.org). We conduct a comprehensive quantitative analysis on a global scale and long term perspective in order to depict more than just snapshots of individual events. We show how humanitarian mapping was impacted by major mapping disaster response events, but also widened its application to other domains such as disaster preparedness. Our approach follows two paths. One focuses on the mapping itself. The other focuses on the composition of the humanitarian mapping community. We provide insights on the following research questions: 1. Where, for what purpose and at what scale did humanitarian remote mapping actually happen in 2012-2020? 2. What is the impact of humanitarian contributions and how does it differ among user groups and over time? ## Methodology and Results ### Data Our analytical approach is characterized by the combination of the following data sets: (1) For general OSM mapping and user characteristics we use the whole history of OSM object versions and edits provided by the OSHDB framework (Raifer et al. 2019). (2) We were provided with a HOT Tasking Manager database dump covering the time between 11/2012 until 12/2019. ### Method Our method uses spatio-temporal time series analysis based on a hexagonal grid for all areas humanitarian mapping activity has been conducted. We investigate the evolution of humanitarian mapping with respect to several attributes including number of OSM contributions (created, modified, deleted OSM objects), percent of tasks mapped and validated in the Tasking Manager and number of OSM contributors involved. We set our findings and the geographical distribution of our results in context to the overall OSM mapping and user characteristics. ## Results Humanitarian mapping has grown almost linear with respect to the numbers of projects, unique users, tasks mapped and OpenStreetMap contributions. While at the same time it got more diverse in terms of spatial distribution of mapping activities and organizations involved. In 2018 more than 100 organizations were running projects on every inhabited continent except Australia. Peaks in mapping activities in the first quarter of 2015 and the third quarter of 2017 are reflecting activations of the community in responses to the Gorkha earthquake as well as to the hurricanes Harvey, Irma and Puebla earthquake. Although the number of mappers is growing, the humanitarian community lacks long term commitment. Almost 70% of humanitarian mappers contribute one day only. Another 10% drops out after ten days of being active. However the number of one day only contributors is steadily rising, whereas mappers involved on 5 or more days seem to be saturated since 2017. Nonetheless, the one day only contributors have a considerable impact on the data. They account for 10% of all edits, whereas contributors involved on 100 or more days account for 50%. This pattern is reflected by the composition of user actions as well. The number of mapping activities is growing almost linear, whereas the amount of validators stagnate. However, different organisations have varying degrees of success in recruiting new validators. The american red cross for instance accounts for 30 to 50% of all first time validators in the last 12 months. ## Discussion Humanitarian mapping with the tasking manager now exists for more than seven years. In terms of scale it is definitely a success story. We have shown edits, users, projects, geographic diversity, almost all of these have experienced linear growth. But with respect to the numbers of user commitment and val