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Validator reference

Every GTFS notice,
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Browse 191 GTFS validation notice codes with severity, affected files, report fields, repair guidance, and specification references.

SeverityNoticeFiles to check
WARNING agency_phone_invalidCheck the agency's public phone number agency.txt WARNING attribution_without_roleAn attribution does not say what the organization does attributions.txt ERROR bidirectional_exit_gateAn exit-only gate allows travel in both directions pathways.txt INFO big_gap_in_serviceA service has a gap of at least 14 days calendar.txt, calendar_dates.txt ERROR block_trips_with_overlapping_stop_timesOne vehicle is assigned to overlapping trips trips.txt ERROR csv_parsing_failedA file could not be read as CSV See report ERROR decreasing_or_equal_stop_time_distanceDistance does not increase between stops stop_times.txt ERROR decreasing_shape_distanceDistance goes backwards along a shape shapes.txt WARNING duplicate_fare_mediaTwo fare media have the same name and type fare_media.txt ERROR duplicate_geo_json_keyTwo geographic features use the same ID locations.geojson ERROR duplicate_geography_idAn ID is shared by different location types stops.txt, location_groups.txt ERROR duplicate_keyTwo rows have the same unique key See report WARNING duplicate_route_nameTwo routes have indistinguishable names routes.txt WARNING duplicate_tripTwo records describe the same scheduled trip stop_times.txt, trips.txt ERROR duplicated_columnA column name appears twice See report ERROR empty_column_nameA column has no name See report ERROR empty_fileA GTFS file has no usable content See report WARNING empty_rowA file contains a blank row See report ERROR equal_shape_distance_diff_coordinatesDifferent shape points have the same distance shapes.txt WARNING equal_shape_distance_diff_coordinates_distance_below_thresholdNearby shape points share a rounded distance shapes.txt WARNING equal_shape_distance_same_coordinatesA shape repeats the same point and distance shapes.txt WARNING expired_calendarA service's active dates have ended calendar.txt, calendar_dates.txt ERROR fare_product_with_multiple_default_rider_categoriesA fare product has more than one default rider category fare_products.txt, rider_categories.txt ERROR fare_transfer_rule_duration_limit_type_without_duration_limitA transfer time limit has no duration fare_transfer_rules.txt ERROR fare_transfer_rule_duration_limit_without_typeA transfer duration does not say how to measure it fare_transfer_rules.txt ERROR fare_transfer_rule_invalid_transfer_countThe allowed transfer count is invalid fare_transfer_rules.txt ERROR fare_transfer_rule_with_forbidden_transfer_countA transfer count is set where it is not allowed fare_transfer_rules.txt ERROR fare_transfer_rule_without_transfer_countA within-group transfer rule has no transfer count fare_transfer_rules.txt WARNING fast_travel_between_consecutive_stopsTravel between two stops appears too fast routes.txt, stop_times.txt WARNING fast_travel_between_far_stopsTravel between distant stops appears too fast routes.txt, stop_times.txt WARNING feed_expiration_date30_daysThe feed has less than a month of validity left feed_info.txt WARNING feed_expiration_date7_daysThe feed expires within seven days feed_info.txt WARNING feed_info_lang_and_agency_lang_mismatchThe feed and agency languages do not agree agency.txt, feed_info.txt INFO feed_valid_beyond_total_service_windowFeed validity extends well beyond the service dates feed_info.txt, calendar.txt ERROR forbidden_arrival_or_departure_timeA stop-time row mixes fixed times and a service window stop_times.txt ERROR forbidden_continuous_pickup_drop_offRoute-wide continuous service conflicts with a pickup window routes.txt, stop_times.txt ERROR forbidden_drop_off_typeScheduled drop-off conflicts with a service window stop_times.txt ERROR forbidden_geography_idA stop-time row identifies more than one location stop_times.txt ERROR forbidden_pickup_typeThe pickup type conflicts with a service window stop_times.txt ERROR forbidden_prior_day_booking_field_valueAn advance-booking rule contains incompatible fields booking_rules.txt ERROR forbidden_prior_notice_start_dayTwo alternative booking-window limits are both set booking_rules.txt ERROR forbidden_prior_notice_start_timeA booking start time has no start day booking_rules.txt ERROR forbidden_real_time_booking_field_valueA real-time booking rule contains advance-notice fields booking_rules.txt ERROR forbidden_same_day_booking_field_valueA same-day booking rule contains incompatible fields booking_rules.txt ERROR forbidden_shape_dist_traveledA distance is assigned to an area or stop group stop_times.txt ERROR foreign_key_violationA record refers to an ID that does not exist See report INFO future_calendarAll services start after today calendar.txt, calendar_dates.txt INFO future_feedThe feed's validity starts after today feed_info.txt ERROR geo_json_duplicated_elementA GeoJSON object contains a repeated field locations.geojson INFO geo_json_unknown_elementA GeoJSON field is not recognized locations.geojson ERROR google_ic_price_checkThe Google smart-card fare value is invalid fare_attributes.txt WARNING google_transfer_type_checkGoogle Transit may ignore this transfer type transfers.txt WARNING headway_too_largeThe interval between departures is over an hour frequencies.txt ERROR i_o_errorThe validator could not read or write data See report WARNING inconsistent_agency_langAgencies use different language tags agency.txt ERROR inconsistent_agency_timezoneAgencies in one feed use different time zones agency.txt WARNING inconsistent_route_type_for_block_idOne vehicle block mixes transport types routes.txt, trips.txt WARNING inconsistent_route_type_for_in_seat_transferA stay-on-board transfer connects different transport types routes.txt, transfers.txt ERROR invalid_characterA text value contains a damaged or invalid character See report ERROR invalid_colorA color is not a six-digit hexadecimal value See report ERROR invalid_currencyA currency code is not recognized See report ERROR invalid_currency_amountA fare amount does not match its currency's precision See report ERROR invalid_dateA date is not a valid YYYYMMDD value See report ERROR invalid_emailAn email address has an invalid format See report ERROR invalid_floatA field contains an unreadable decimal number See report ERROR invalid_geometryA service-area polygon is invalid locations.geojson ERROR invalid_input_files_in_subfolderGTFS files are inside a folder in the ZIP See report ERROR invalid_integerA whole-number field contains another kind of value See report ERROR invalid_language_codeA language tag is invalid See report ERROR invalid_phone_numberA phone number does not pass the regional format check See report ERROR invalid_pickup_drop_off_windowA pickup/drop-off window does not end after it starts stop_times.txt ERROR invalid_prior_notice_duration_minThe minimum booking notice exceeds the maximum booking_rules.txt ERROR invalid_row_lengthA CSV row has the wrong number of fields See report ERROR invalid_timeA time is not in GTFS format See report ERROR invalid_timezoneA time-zone name is not recognized See report ERROR invalid_urlA web address has an invalid format See report WARNING leading_or_trailing_whitespacesA value has extra spaces at its edges See report ERROR location_with_unexpected_stop_timeA scheduled stop refers to the wrong location type stop_times.txt, stops.txt ERROR location_without_parent_stationA location is missing its required parent stops.txt ERROR malformed_jsonA JSON file cannot be read See report WARNING missing_bike_allowanceA ferry trip does not state whether bikes are allowed routes.txt, trips.txt ERROR missing_calendar_and_calendar_date_filesThe feed has no service calendar calendar.txt, calendar_dates.txt WARNING missing_feed_contact_email_and_urlThe feed has no data-support contact feed_info.txt WARNING missing_feed_info_dateOnly one feed-validity date is provided feed_info.txt ERROR missing_level_idAn elevator endpoint has no station level stops.txt, pathways.txt WARNING missing_pickup_drop_off_booking_rule_idA bookable service does not link to booking instructions stop_times.txt ERROR missing_pickup_or_drop_off_windowA service window is missing one boundary stop_times.txt ERROR missing_prior_day_booking_field_valueAn advance-booking rule has an incomplete deadline booking_rules.txt ERROR missing_prior_notice_duration_minA same-day booking rule has no minimum notice booking_rules.txt ERROR missing_prior_notice_last_dayAn advance-booking deadline is missing its day booking_rules.txt ERROR missing_prior_notice_last_timeAn advance-booking deadline is missing its time booking_rules.txt ERROR missing_prior_notice_start_timeA booking opening day is missing its time booking_rules.txt WARNING missing_recommended_columnA recommended column is missing See report WARNING missing_recommended_fieldA recommended value is missing from a row See report WARNING missing_recommended_fileA recommended GTFS file is absent See report ERROR missing_required_agency_idA multi-agency feed is missing an agency ID agency.txt, fare_attributes.txt ERROR missing_required_columnA required column is missing from the header See report ERROR missing_required_elementA GeoJSON object is missing a required element locations.geojson ERROR missing_required_fieldA required value is empty See report ERROR missing_required_fileThe archive is missing a required GTFS file See report ERROR missing_stop_nameA stop, station, or entrance has no name stops.txt ERROR missing_stop_times_recordTravel within a flexible area needs a second record stop_times.txt WARNING missing_timepoint_valueA timed stop does not say whether its times are exact stop_times.txt ERROR missing_trip_edgeThe first or last stop is missing required times stop_times.txt WARNING mixed_case_recommended_fieldPassenger text uses an unusual letter case See report WARNING more_than_one_entityA single-record file contains multiple records See report ERROR new_line_in_valueA field contains an unexpected line break See report WARNING non_ascii_or_non_printable_charAn ID contains unusual or invisible characters See report ERROR number_out_of_rangeA number is outside the allowed range See report ERROR overlapping_frequencyDeparture-frequency periods overlap for one trip frequencies.txt ERROR overlapping_zone_and_pickup_drop_off_windowFlexible service areas overlap at the same time stop_times.txt, locations.geojson WARNING pathway_dangling_generic_nodeAn internal station node connects to only one location pathways.txt, stops.txt WARNING pathway_loopA pathway starts and ends at the same location pathways.txt ERROR pathway_to_platform_with_boarding_areasA pathway should connect to a boarding area pathways.txt ERROR pathway_to_stop_with_access_outside_of_station_pathwaysA street-access stop is linked into station pathways pathways.txt, stops.txt ERROR pathway_to_wrong_location_typeA pathway points to a station container pathways.txt ERROR pathway_unreachable_locationPart of the station cannot be reached or exited pathways.txt, stops.txt INFO platform_without_parent_stationA stop or platform has no parent station stops.txt ERROR point_near_originA coordinate is suspiciously close to 0,0 See report ERROR point_near_poleA coordinate is suspiciously close to a pole See report ERROR prior_notice_last_day_after_start_dayThe booking deadline precedes the booking opening window booking_rules.txt ERROR route_both_short_and_long_name_missingA route has no passenger-facing name routes.txt WARNING route_color_contrastThe route text is hard to read against its color routes.txt WARNING route_long_name_contains_short_nameThe long route name repeats the short name routes.txt ERROR route_networks_specified_in_more_than_one_fileRoute-network membership uses conflicting sources routes.txt, route_networks.txt WARNING route_short_name_too_longThe short route name is longer than 12 characters routes.txt ERROR runtime_exception_in_loader_errorThe validator failed while loading a file See report ERROR runtime_exception_in_validator_errorA validation rule failed unexpectedly See report WARNING same_name_and_description_for_routeThe route description repeats its name routes.txt WARNING same_name_and_description_for_stopThe stop description repeats its name stops.txt WARNING same_route_and_agency_urlA route link opens the agency's general page agency.txt, routes.txt WARNING same_stop_and_agency_urlA stop link opens the agency's general page agency.txt, stops.txt WARNING same_stop_and_route_urlA stop link opens a route page routes.txt, stops.txt INFO service_extends_far_in_the_futureA service calendar extends more than two years ahead calendar.txt, calendar_dates.txt WARNING service_has_no_active_day_of_the_weekA weekly calendar has no operating weekdays calendar.txt WARNING service_never_activeA service is never scheduled to run calendar.txt, calendar_dates.txt INFO service_window_outside_feed_periodService dates fall outside the declared feed period feed_info.txt, calendar.txt WARNING single_shape_pointA route shape contains only one point shapes.txt ERROR start_and_end_range_equalAn interval starts and ends at the same time See report ERROR start_and_end_range_out_of_orderAn interval ends before it starts See report ERROR station_with_parent_stationA station is nested under another location stops.txt ERROR stop_access_specified_for_incorrect_locationThe access flag is set on the wrong location type stops.txt ERROR stop_access_specified_for_stop_with_no_parent_stationThe access flag is set on a standalone stop stops.txt WARNING stop_has_too_many_matches_for_shapeA stop matches several parts of the route shape stop_times.txt, stops.txt WARNING stop_headsign_invalid_charA stop headsign contains a Google-incompatible character stop_times.txt ERROR stop_time_timepoint_without_timesAn exact timepoint is missing its times stop_times.txt ERROR stop_time_with_arrival_before_previous_departure_timeThe next stop is reached before the previous departure stop_times.txt ERROR stop_time_with_only_arrival_or_departure_timeA stop has only an arrival time or only a departure time stop_times.txt WARNING stop_too_far_from_shapeA stop is too far from the trip's route line shapes.txt, stop_times.txt WARNING stop_too_far_from_shape_using_user_distanceA stop's distance places it far from its real location stop_times.txt, stops.txt ERROR stop_without_locationA stop, station, or entrance is missing coordinates stops.txt WARNING stop_without_stop_timeNo trip directly visits this stop stop_times.txt, stops.txt INFO stop_without_zone_idA stop is missing a zone required by its fare rules stops.txt, stop_times.txt WARNING stops_match_shape_out_of_orderThe stop order disagrees with the route shape stop_times.txt, stops.txt ERROR thread_execution_errorA background validation task failed See report ERROR timeframe_only_start_or_end_time_specifiedA fare timeframe is missing one time boundary timeframes.txt ERROR timeframe_overlapFare timeframes overlap within the same group and service timeframes.txt ERROR timeframe_start_or_end_time_greater_than_twenty_four_hoursA fare timeframe uses a time after 24:00:00 timeframes.txt WARNING too_many_days_without_serviceThe whole feed has a long gap with no service calendar.txt, calendar_dates.txt ERROR too_many_rowsA file exceeds a processing limit See report INFO transfer_distance_above_2_kmA transfer connects stops more than 2 km apart stops.txt, transfers.txt WARNING transfer_distance_too_largeA transfer connects stops more than 10 km apart stops.txt, transfers.txt ERROR transfer_with_invalid_stop_location_typeA transfer endpoint is not a stop or station transfers.txt ERROR transfer_with_invalid_trip_and_routeA transfer's trip belongs to a different route transfers.txt ERROR transfer_with_invalid_trip_and_stopA transfer's trip does not serve its stated stop transfers.txt WARNING transfer_with_suspicious_mid_trip_in_seatA stay-on-board transfer occurs in the middle of a trip stop_times.txt, stops.txt ERROR translation_foreign_key_violationA translation refers to a record that cannot be found translations.txt ERROR translation_unexpected_valueA translation contains a field that must be empty translations.txt WARNING translation_unknown_table_nameA translation names an unknown or missing table translations.txt WARNING trip_coverage_not_active_for_next7_daysThe main timetable coverage ends within seven days calendar.txt, calendar_dates.txt ERROR trip_distance_exceeds_shape_distanceThe last stop's distance goes beyond the shape shapes.txt, stop_times.txt WARNING trip_distance_exceeds_shape_distance_below_thresholdThe stop distance exceeds the shape despite nearby endpoints shapes.txt, stop_times.txt INFO trip_headsign_matches_intermediate_stopThe destination display names an intermediate stop stop_times.txt, stops.txt INFO trip_with_shape_dist_traveled_but_no_shape_distancesStop distances have no complete matching distances on the shape shapes.txt, stop_times.txt ERROR u_r_i_syntax_errorA resource address cannot be read as a URI See report WARNING unexpected_enum_valueA coded field contains an unrecognized value See report INFO unknown_columnA column name is not recognized See report INFO unknown_fileA file in the archive is not recognized See report INFO unsorted_stop_timesStop-time rows are not grouped and ordered by trip stop_times.txt ERROR unsupported_feature_typeA GeoJSON item is not a Feature locations.geojson ERROR unsupported_geo_json_typeThe GeoJSON root is not a FeatureCollection locations.geojson ERROR unsupported_geometry_typeA service area is not a Polygon or MultiPolygon locations.geojson WARNING unusable_tripA trip has too few stops for a passenger journey stop_times.txt, trips.txt WARNING unused_agencyNo route refers to this agency agency.txt, routes.txt INFO unused_parent_stationA station has no child locations stops.txt WARNING unused_routeA route has no trips routes.txt, trips.txt WARNING unused_shapeNo trip uses this route shape shapes.txt, trips.txt INFO unused_stationA station has no child locations stops.txt WARNING unused_stopA stop is not used by trips or their station hierarchy stop_times.txt, stops.txt WARNING unused_tripA trip has no stop-time records stop_times.txt, trips.txt ERROR wrong_parent_location_typeA location points to the wrong kind of parent stops.txt