Built from open data.
Open in return.
Navology's offline rail intelligence for Japan is a database we built by combining open sources: the rail network from OpenStreetMap, track geometry from the Japanese government, and station names from Wikidata. The OpenStreetMap data is licensed under the Open Database License (ODbL) 1.0, whose share-alike term means our combined database is a derivative database — and must be open too. It is. This page is the offer.
Download the derivative database
These are the exact data files shipped inside the current version of the app, offered under the ODbL 1.0:
Japan's passenger rail network as a routable graph — stations as nodes, line segments as edges, with transfer relationships, line names, and colours. Merged from OpenStreetMap and MLIT N02 geometry.
Simplified real track centerlines for drawing routes on a map, reduced from MLIT N02 to phone-legible resolution.
Want the build tooling, a diff against the sources, or the data from a specific app version? Email hello@stackstudios.ai and we'll provide it — that's part of the license promise, not a favor.
Attribution
- © OpenStreetMap contributors — rail network topology, station data. Open Database License 1.0.
- MLIT National Land Numerical Information (Railway, N02) — track centerline geometry, from Japan's Ministry of Land, Infrastructure, Transport and Tourism (国土数値情報ダウンロードサイト). The data has been processed into a routing graph and map resource; it is not presented as published by the government.
- Wikidata — supplementary station names (CC0; credited with thanks, not obligation).
- Public Transportation Open Data Center (公共交通オープンデータセンター) — Kyoto City Bus GTFS-JP, published by the Kyoto Municipal Transportation Bureau, used under the Basic License for Public Transport Open Data. Bus distances are computed from this feed and served as answers to individual queries; the derived table is not redistributed, and is not part of the download below. The data is processed by us and is not presented as published by the operator, which bears no responsibility for it.
What this license means for you
You may copy, adapt, and build on these files — including commercially — as long as you attribute the sources above and license any derivative database you publish under the ODbL as well. The app's source code is not covered by this license; ODbL share-alike applies to the database, not the software around it.
Coming countries
As Navology's rail intelligence grows beyond Japan, each country's derivative database will be published on this page under the same terms, with its own sources credited — some under ODbL, some under national open licenses (CC-BY, CC0, public domain) as their sources require.