Validation Rules
GTFS Guru registers 110 validators, which currently emit the 191 notice codes listed below.
This list is generated from the validator's notice schema. To export the full machine-readable schema, including context fields for every code:
Which specification revision and canonical validator release these codes are aligned with, which of them correspond to a canonical rule, and what changed upstream recently: see the compatibility page.
ERROR (111)
bidirectional_exit_gateblock_trips_with_overlapping_stop_timescsv_parsing_faileddecreasing_or_equal_stop_time_distancedecreasing_shape_distanceduplicate_geo_json_keyduplicate_geography_idduplicate_keyduplicated_columnempty_column_nameempty_fileequal_shape_distance_diff_coordinatesfare_product_with_multiple_default_rider_categoriesfare_transfer_rule_duration_limit_type_without_duration_limitfare_transfer_rule_duration_limit_without_typefare_transfer_rule_invalid_transfer_countfare_transfer_rule_with_forbidden_transfer_countfare_transfer_rule_without_transfer_countforbidden_arrival_or_departure_timeforbidden_continuous_pickup_drop_offforbidden_drop_off_typeforbidden_geography_idforbidden_pickup_typeforbidden_prior_day_booking_field_valueforbidden_prior_notice_start_dayforbidden_prior_notice_start_timeforbidden_real_time_booking_field_valueforbidden_same_day_booking_field_valueforbidden_shape_dist_traveledforeign_key_violationgeo_json_duplicated_elementgoogle_ic_price_checki_o_errorinconsistent_agency_timezoneinvalid_characterinvalid_colorinvalid_currencyinvalid_currency_amountinvalid_dateinvalid_emailinvalid_floatinvalid_geometryinvalid_input_files_in_subfolderinvalid_integerinvalid_language_codeinvalid_phone_numberinvalid_pickup_drop_off_windowinvalid_prior_notice_duration_mininvalid_row_lengthinvalid_timeinvalid_timezoneinvalid_urllocation_with_unexpected_stop_timelocation_without_parent_stationmalformed_jsonmissing_calendar_and_calendar_date_filesmissing_level_idmissing_pickup_or_drop_off_windowmissing_prior_day_booking_field_valuemissing_prior_notice_duration_minmissing_prior_notice_last_daymissing_prior_notice_last_timemissing_prior_notice_start_timemissing_required_agency_idmissing_required_columnmissing_required_elementmissing_required_fieldmissing_required_filemissing_stop_namemissing_stop_times_recordmissing_trip_edgenew_line_in_valuenumber_out_of_rangeoverlapping_frequencyoverlapping_zone_and_pickup_drop_off_windowpathway_to_platform_with_boarding_areaspathway_to_stop_with_access_outside_of_station_pathwayspathway_to_wrong_location_typepathway_unreachable_locationpoint_near_originpoint_near_poleprior_notice_last_day_after_start_dayroute_both_short_and_long_name_missingroute_networks_specified_in_more_than_one_fileruntime_exception_in_loader_errorruntime_exception_in_validator_errorstart_and_end_range_equalstart_and_end_range_out_of_orderstation_with_parent_stationstop_access_specified_for_incorrect_locationstop_access_specified_for_stop_with_no_parent_stationstop_time_timepoint_without_timesstop_time_with_arrival_before_previous_departure_timestop_time_with_only_arrival_or_departure_timestop_without_locationthread_execution_errortimeframe_only_start_or_end_time_specifiedtimeframe_overlaptimeframe_start_or_end_time_greater_than_twenty_four_hourstoo_many_rowstransfer_with_invalid_stop_location_typetransfer_with_invalid_trip_and_routetransfer_with_invalid_trip_and_stoptranslation_foreign_key_violationtranslation_unexpected_valuetrip_distance_exceeds_shape_distanceu_r_i_syntax_errorunsupported_feature_typeunsupported_geo_json_typeunsupported_geometry_typewrong_parent_location_type
WARNING (63)
agency_phone_invalidattribution_without_roleduplicate_fare_mediaduplicate_route_nameduplicate_tripempty_rowequal_shape_distance_diff_coordinates_distance_below_thresholdequal_shape_distance_same_coordinatesexpired_calendarfast_travel_between_consecutive_stopsfast_travel_between_far_stopsfeed_expiration_date30_daysfeed_expiration_date7_daysfeed_info_lang_and_agency_lang_mismatchgoogle_transfer_type_checkheadway_too_largeinconsistent_agency_langinconsistent_route_type_for_block_idinconsistent_route_type_for_in_seat_transferleading_or_trailing_whitespacesmissing_bike_allowancemissing_feed_contact_email_and_urlmissing_feed_info_datemissing_pickup_drop_off_booking_rule_idmissing_recommended_columnmissing_recommended_fieldmissing_recommended_filemissing_timepoint_valuemixed_case_recommended_fieldmore_than_one_entitynon_ascii_or_non_printable_charpathway_dangling_generic_nodepathway_looproute_color_contrastroute_long_name_contains_short_nameroute_short_name_too_longsame_name_and_description_for_routesame_name_and_description_for_stopsame_route_and_agency_urlsame_stop_and_agency_urlsame_stop_and_route_urlservice_has_no_active_day_of_the_weekservice_never_activesingle_shape_pointstop_has_too_many_matches_for_shapestop_headsign_invalid_charstop_too_far_from_shapestop_too_far_from_shape_using_user_distancestop_without_stop_timestops_match_shape_out_of_ordertoo_many_days_without_servicetransfer_distance_too_largetransfer_with_suspicious_mid_trip_in_seattranslation_unknown_table_nametrip_coverage_not_active_for_next7_daystrip_distance_exceeds_shape_distance_below_thresholdunexpected_enum_valueunusable_tripunused_agencyunused_routeunused_shapeunused_stopunused_trip
INFO (17)
big_gap_in_servicefeed_valid_beyond_total_service_windowfuture_calendarfuture_feedgeo_json_unknown_elementplatform_without_parent_stationservice_extends_far_in_the_futureservice_window_outside_feed_periodstop_without_zone_idtransfer_distance_above_2_kmtrip_headsign_matches_intermediate_stoptrip_with_shape_dist_traveled_but_no_shape_distancesunknown_columnunknown_fileunsorted_stop_timesunused_parent_stationunused_station