OSM Japan and OSMF Japan

Community Spotlight Talk at OSMF board meeting, 2024/May/30.

Transcript

1. OSM Japan and OSMF Japan OSMF Japan: Satoshi Iida
2. Who am I? OSMF Japan: Deputy board director OSMF Advisory board member (Local Chapter) The oldest “Note” holder (No.6)
3. This At SotM 2013 Birmingham
4. This convenience store is closed already
5. TABLE OF CONTENTS 01 Fact sheet Fact, stats and analysis 02 OSMF Japan Activities by OSM Foundation Japan 03 OSM Japan Community Activities by OSM Japan Community
6. Fact Sheet On the ground 01
7. Footprint of Japanese community List Note Community Start Approximately 2008 ~ OSMF Japan from 2010 ~ OSMF Local Chapter Since 2021 Communication platform Slack: 1080 Facebook: 1099 X (Twitter): 35 posts in 2024 Apr SotM 2014: Japan, Meguro 2015: Japan, Hamamatsu 2016: Japan, Akabane 2017: Global, Aizu-wakamatsu 2018: Japan, Hibiya 2020: Japan,Online 2022: Japan, Kakogawa New Users Around 120 / month
8. Size of the Community This shows the ratio of mappers to the total population for the countries/regions. Japan has a ratio roughly equivalent to Malaysia and Nepal. It's about 1/3 the ratio of the United States. Compared to the population ratio in Germany, it's around 1/10 the scale. Around 1/3
9. Size of the Community Similarly, this shows a comparison of how large an area each mapper needs to map. In Japan, with the current number of mappers, it seems that mapping an area of around 3,000 square km would be needed to cover the entire country. This area is close to the ratios of Spain and Greece. However, in terms of the ratio to the total population, Spain and Greece have 3-4 times the mapper ratio compared to Japan. 3 times 4 times
10. Overview Sheet: https://docs.google.com/spreadsheets/d/1uSoO8TvUBqg_DAvltVZIfnWz9TY1IBJK/edit#gid=2086889520 Overall, the following can be said: • Japan does not have a very large number of mappers relative to its population • The area that each individual mapper needs to cover is quite large, indicating that expansion of the community on a larger scale is needed in this region Note: Of course, this analysis is an overly simplistic “hack”. The mapper numbers should use averaged figures, and factors like the urban population ratio and device ownership rates may also need to be taken into account. This is simply intended as material to grasp general trends.
11. OSMF Japan Activities related to Japan Local Chapter 02
12. Our Policy Support the community. We are a basket.
13. OUR TEAM Deputy board director Satoshi Iida Director of boards Hiroshi Miura Auditor Toshihisa Tanaka Deputy board director Katsuyuki Sakanoshita Board Taro Matsuzawa
14. Activities Vector Tiles MapTiler based tiles. Partially patched for disputed area Operating osm.jp Mainly for event promotions and announcements Coordination Coordinating with other organizations (e.g. Government) Hosting Imageries Hosting the Imageries taken by municipalities (under JP survey act) Inquiries Mainly from commercial use. Replying based on the guidelines
15. Hosting Imageries Under Japan's Survey Act, it is possible to request aerial photographs taken by municipalities by submitting an application. (Accuracy of 1/1000 - 1/2500) By using this, high-resolution aerial photographs can be obtained, and we are hosting xyz tiles on our server. https://wiki.openstreetmap.org/wiki/OSMFJ/ortho-tiles Now we have 6 areas. More to come. (which include 6Tb of original dataset area)
16. Relationship with the government Japanese government is pushing “Base Registry (*)” which normalize administrative datasets. That include maps, addresses and cadastra. It’s massive and useful resources also. * Equivalent to EU: ABR (Access to the Base Registries)
17. Base registry and other massive datasets Name Base registry Notes and Tasks Addresses (Urban) Yes Approximately, the schemes match between this and OSM. But need some updates and clarification on OSM side. Addresses (Country) Yes Same above. Cadastra Yes Half of the dataset are stored in arbitrary coordinate system. So it needs huge updates to use. Plateau dataset No Not a base registry precisely. 3D citygml dataset which covers 250 larger cities. Agricultural area (Fude polygon) No Not base registry precisely. Farmlands and rice fields with identifier for whole Japan. License - Our “Open Government License” is UK based. So it need to clarify the compatibility to LWG.
18. OSM Japan Community Activities by OSM Japan community members 03
19. Community based activities Plateau import Importing Plateau, building footprint dataset Mappy Hour Held on every saturday night. Online. Over 4 years! Welcome message 2 years of continuous messaging. Thank you OSM be! Mapping Party 1-2 per 2 months. Mainly around Kyoto. Events Promotion on other Open Source Events
20. Mappy Hours Summary It is online event by every Saturday night. (over 4 years!) Each participant edits maps and exchange feedbacks. It has greatly contributed to community engagement. Lead User:K_Sakanoshita (OSMFJ Board)
21. Plateau import Import of the Plateau dataset. This valuable dataset containing attributes that are difficult to survey, including building heights. It covers major metropolitan areas. User:Okadatsuneo Convert script is made by user:yuuhayashi Summary Lead
22. Welcome messages Using the welcome message provided by OSM.be to send messages to new users. Continued for 2 years. The response rate was not high, so more proactive outreach may be necessary. (such as responding to review requests) User:nyampire and user:Mappin' Jack Flash Summary Lead
23. Characteristics of the Japanese Community Hobbyists are the volume zone Rather than being business-driven. Issues • There is a tendency for individuals to focus on limited territories (regions/domains). • Improving comprehensiveness, inputting attribute values that are not displayed on the map (such as lanes), etc. are challenges. N S W E
24. Why?
25. Other major maps/data providers in Japan Name Main user Geocoding (Urban) Geocoding (Country) Original data Google Maps Themselves ◯ ◯ Not available Zenrin Mapbox ◯ ◯ Expensive GeoTechnologies (former IncrementP) Apple ◯ △ Expensive GSI maps (Government Map) Government Municipalities △ △ Available under Survey law. But with very simple attributes
26. What should be done to be “best map” for the 10% “Maps for 90%” is already there in Japan. So what should be done for the “best maps”? ▪ More valuable for people? ▪ More useful for analysis or research? ▪ To know and to love your city? Keywords could be • Local people, Archives and so on…
27. Even Crisis Mapping Result of the Crisis mapping in 2024/Jan. Probably less used in the Disaster area. This news says “2000 volunteers creates maps to archive the city”. (interview with Shimizu@HOT Voting member) “By keeping a record of what the original state was, it can help show how to recover and move forward.” On the other hand, OSM data should reflect “Now”. So need update those areas sooner. Maybe it may need a relationship with OHM. https://www.asahi.com/articles/ASS5N4R83S5NPJLB004M.html
28. Future Directions 04
29. Approach Examples? Workshops Coordination Encourage Foster “Map users” To promote the use of Open Source tools e.g. QGIS, MapLibre and so on… For Community members E.g. Suggest new approaches, and/or projects. Hold “Ask me anything about mapping” office hours. Outreach and Relationship Wikipedian? Map lovers? Hikers? NPOs? Teachers? Civic tech?
30. CREDITS: This presentation template was created by Slidesgo, including icons by Flaticon, infographics & images by Freepik and illustrations by Storyset THANKS! nyampire@gmail.com Also I’m on… Do you have any questions?