Force a GTFS to be valid by removing problems
Details
Actions performed 1. Remove stops with missing location 2. Remove routes that don't exist in agency 3. Remove trips that don't exist in routes 4. Remove stop_times(calls) that don't exist in trips 5. Remove stop_times(calls) that don't exist in stops 6. Remove Calendar that have service_id that doesn't exist in trips 7. Remove Calendar_dates that have service_id that doesn't exist in trips 8. Remove rows in the optional tables (shapes, frequencies, transfers, pathways and the GTFS v1/Fares v2 fare tables) that reference stops, routes or trips that don't exist