GTFS feed discovery and verification for public transit operator

Task: for a list of transit operators — find public GTFS Schedule
feeds and verify service date coverage ≥ 6 months.

What was built:
— Automated search via Transit.land API (authenticated)
— Search in MobilityDatabase.org catalog (3000+ feeds)
— Verification: download GTFS archive → parse calendar.txt → date range
— Aggregate feeds handled: one feed covering multiple operators
— Output: CSV (Carrier / GTFS URL / Date Range / Status)

#gtfs #transit_data #api #python #mobility #data_processing