transitio
Copyright (c) 2026 Henrikki Tenkanen

This software is licensed under the MIT License; see LICENSE for the terms.

The feed index that transitio bundles and downloads is derived data compiled
from several open sources. Every built index also carries its own NOTICE file,
generated when it is built, recording the exact versions and licences of the
sources that index was built from; that per-snapshot NOTICE travels with the
index and is authoritative for a given snapshot. The upstream sources are:

  - Transitland Atlas (Interline) -- feed identities, URLs and licences.
    Licensed CC-BY 4.0; attribution required.
    https://github.com/transitland/transitland-atlas
  - Mobility Database catalog (MobilityData) -- feed identities and metadata.
    https://mobilitydatabase.org/
  - GBFS systems.csv (MobilityData) -- shared-mobility system identities.
    https://github.com/MobilityData/gbfs
  - Overture Maps divisions -- administrative boundary geometry. The divisions
    theme includes content derived from OpenStreetMap (c) OpenStreetMap
    contributors, available under the Open Database License (ODbL 1.0), whose
    share-alike and attribution terms apply to the boundary geometry.
    https://overturemaps.org/  https://www.openstreetmap.org/copyright
  - Wikidata -- place identifiers and names, dedicated to the public domain
    under CC0. https://www.wikidata.org/

A feed's coverage geometry is withheld only where the feed's licence explicitly
disallows redistribution. A feed whose licence is unknown keeps its coverage
geometry, and the index's `redistribution_allowed` column records the status
(true, false or unresolved) the build judged for each feed. The per-snapshot
NOTICE records the licence judged for each feed.
