valley-metro — Source Data Validation Report

This report was generated by the Canonical GTFS Schedule validator, version 7.1.0 at 2026-04-24T04:28:54Z,
for the dataset file:///shared/valley-metro_e8d119df.zip. No country code was provided.

Use this report alongside our documentation.

Summary

Agencies included


Feed Info


Publisher Name:
GMV Syncromatics
Feed Email:
support@gmvsync.com
Feed Language:
English
Feed Start Date:
2026-04-05
Feed End Date:
N/A

Files included


  1. agency.txt
  2. calendar.txt
  3. calendar_attributes.txt
  4. directions.txt
  5. feed_info.txt
  6. realtime_routes.txt
  7. routes.txt
  8. shapes.txt
  9. stop_times.txt
  10. stops.txt
  11. trips.txt

Counts


  • Agencies: 1
  • Blocks: 45
  • Routes: 0
  • Shapes: 38
  • Stops: 815
  • Trips: 588

Specification Compliance report

484 notices reported (37 errors, 444 warnings, 3 infos)

Notice Code Severity Total
block_trips_with_overlapping_stop_times ERROR 3

block_trips_with_overlapping_stop_times

Trips with the same block id have overlapping stop times.

You can see more about this notice here.

csvRowNumberA (?) The row number from `trips.txt` of the first faulty trip. tripIdA (?) The id of first faulty trip. serviceIdA (?) The service id of the first faulty trip. csvRowNumberB (?) The row number from `trips.txt` of the second faulty trip. tripIdB (?) The id of the other faulty trip. serviceIdB (?) The service id of the other faulty trip. blockId (?) The `trips.block_id` of the overlapping trip. intersection (?) The overlapping period.
364 "B351T4" "2" 365 "B351T4" "2" "506355" "20260406"
364 "B351T4" "2" 366 "B351T5" "2" "506355" "20260406"
365 "B351T4" "2" 366 "B351T5" "2" "506355" "20260406"
decreasing_or_equal_stop_time_distance ERROR 21

decreasing_or_equal_stop_time_distance

Decreasing or equal shape_dist_traveled in stop_times.txt.

When sorted by stop_times.stop_sequence, two consecutive entries in stop_times.txt should have increasing distance, based on the field shape_dist_traveled. If the values are equal, this is considered as an error.

You can see more about this notice here.

tripId (?) The id of the faulty trip. stopId (?) The id of the faulty stop. csvRowNumber (?) The row number from `stop_times.txt`. shapeDistTraveled (?) Actual distance traveled along the shape from the first shape point to the faulty record. stopSequence (?) The faulty record's `stop_times.stop_sequence`. prevCsvRowNumber (?) The row number from `stop_times.txt` of the previous stop time. prevShapeDistTraveled (?) Actual distance traveled along the shape from the first shape point to the previous stop time. prevStopSequence (?) The previous record's `stop_times.stop_sequence`.
"B1T28" "5696507" 7544 9877.434018901913 34 7543 11296.197987312642 33
"B1T20" "5696507" 7324 9877.434018901913 34 7323 11296.197987312642 33
"B1T24" "5696507" 7434 9877.434018901913 34 7433 11296.197987312642 33
"B1T16" "5696507" 7192 9877.434018901913 34 7191 11296.197987312642 33
"B1T12" "5696507" 7082 9877.434018901913 34 7081 11296.197987312642 33
"B4T6" "5696507" 10223 9877.434018901913 33 10222 11296.197987312642 32
"B4T2" "5696507" 9813 9877.434018901913 33 9812 11296.197987312642 32
"B351T4" "9718538" 8614 0.0 0 8608 0.0 0
"B351T4" "10535476" 8615 1997.7915001727572 1 8609 1997.7915001727572 1
"B351T4" "4351332" 8616 5724.128057045293 2 8610 5724.128057045293 2
"B351T4" "4351333" 8617 6270.774390914116 3 8611 6270.774390914116 3
"B351T4" "4239462" 8618 16627.569061244754 4 8612 16627.569061244754 4
"B351T4" "4235980" 8619 74400.64600452699 5 8613 74400.64600452699 5
"B1T8" "5696507" 7764 9877.434018901913 34 7763 11296.197987312642 33
"B1T4" "5696507" 7654 9877.434018901913 34 7653 11296.197987312642 33
"B4T30" "5696507" 10140 9877.434018901913 33 10139 11296.197987312642 32
"B4T22" "5696507" 9896 9877.434018901913 33 9895 11296.197987312642 32
"B4T26" "5696507" 10005 9877.434018901913 33 10004 11296.197987312642 32
"B4T18" "5696507" 9747 9877.434018901913 33 9746 11296.197987312642 32
"B4T10" "5696507" 9529 9877.434018901913 33 9528 11296.197987312642 32
"B4T14" "5696507" 9638 9877.434018901913 33 9637 11296.197987312642 32
duplicate_key ERROR 7

duplicate_key

Duplicated entity.

The values of the given key and rows are duplicates.

You can see more about this notice here.

filename (?) The name of the faulty file oldCsvRowNumber (?) The row of the first occurrence. newCsvRowNumber (?) The row of the other occurrence. fieldName1 (?) Composite key's first field name. fieldValue1 (?) Composite key's first value.
"trips.txt" 364 365 "trip_id" "B351T4"
"stop_times.txt" 8608 8614 "trip_id,stop_sequence" "B351T4,0"
"stop_times.txt" 8609 8615 "trip_id,stop_sequence" "B351T4,1"
"stop_times.txt" 8610 8616 "trip_id,stop_sequence" "B351T4,2"
"stop_times.txt" 8611 8617 "trip_id,stop_sequence" "B351T4,3"
"stop_times.txt" 8612 8618 "trip_id,stop_sequence" "B351T4,4"
"stop_times.txt" 8613 8619 "trip_id,stop_sequence" "B351T4,5"
invalid_url ERROR 1

invalid_url

A field contains a malformed URL.

Definitions for valid URLs are quite vague. We perform strict validation using the Apache Commons UrlValidator.

You can see more about this notice here.

filename (?) The name of the faulty file. csvRowNumber (?) The row of the faulty record. fieldName (?) Faulty record's field name. fieldValue (?) Faulty value.
"routes.txt" 26 "route_url" "http://valleymetro.com/docs/schedules/9192 Salem City final 12-12-12.pdf"
stop_time_with_arrival_before_previous_departure_time ERROR 5

stop_time_with_arrival_before_previous_departure_time

Backwards time travel between stops in stop_times.txt

For a given trip_id, the arrival_time of (n+1)-th stoptime in sequence must not precede the departure_time of n-th stoptime in sequence in stop_times.txt.

You can see more about this notice here.

csvRowNumber (?) The row number of the faulty record. prevCsvRowNumber (?) The row of the previous stop time. tripId (?) The trip_id associated to the faulty record. arrivalTime (?) Arrival time at the faulty record. departureTime (?) Departure time at the previous stop time.
8609 8614 "B351T4" "11:25:00" "14:00:00"
8610 8615 "B351T4" "11:30:00" "14:06:00"
8611 8616 "B351T4" "11:31:00" "14:10:00"
8612 8617 "B351T4" "11:45:00" "14:11:00"
8613 8618 "B351T4" "12:20:00" "14:25:00"
equal_shape_distance_same_coordinates WARNING 259

equal_shape_distance_same_coordinates

Two consecutive points have equal shape_dist_traveled and the same lat/lon coordinates in shapes.txt.

When sorted by shape.shape_pt_sequence, the values for shape_dist_traveled must increase along a shape. Two consecutive points with equal values for shape_dist_traveled and the same coordinates indicate a duplicative shape point.

You can see more about this notice here.

Only the first 50 of 259 affected records are displayed below.

shapeId (?) The id of the faulty shape. csvRowNumber (?) The row number from `shapes.txt`. shapeDistTraveled (?) Actual distance traveled along the shape from the first shape point to the faulty record. shapePtSequence (?) The faulty record's `shapes.shape_pt_sequence`. prevCsvRowNumber (?) The row number from `shapes.txt` of the previous shape point. prevShapeDistTraveled (?) Actual distance traveled along the shape from the first shape point to the previous shape point. prevShapePtSequence (?) The previous record's `shapes.shape_pt_sequence`.
"21720" 3546 304.1054590638244 6 3545 304.1054590638244 5
"21720" 3552 596.448215952653 12 3551 596.448215952653 11
"21720" 3559 849.5189211445023 19 3558 849.5189211445023 18
"21720" 3573 1409.5882022021544 33 3572 1409.5882022021544 32
"21720" 3590 2178.217049824527 50 3589 2178.217049824527 49
"21720" 3595 2348.119454984594 55 3594 2348.119454984594 54
"21720" 3600 2567.038886404733 60 3599 2567.038886404733 59
"21720" 3621 3757.2988675710158 81 3620 3757.2988675710158 80
"21720" 3632 4351.560746141234 92 3631 4351.560746141234 91
"21720" 3637 4539.872879169244 97 3636 4539.872879169244 96
"21720" 3640 4684.066205825251 100 3639 4684.066205825251 99
"21720" 3647 4965.685048887196 107 3646 4965.685048887196 106
"21720" 3652 5240.685049613049 112 3651 5240.685049613049 111
"21720" 3657 5521.403421281125 117 3656 5521.403421281125 116
"21720" 3663 5799.010064533462 123 3662 5799.010064533462 122
"21720" 3672 6152.1165895707145 132 3671 6152.1165895707145 131
"21720" 3677 6357.517643064134 137 3676 6357.517643064134 136
"21720" 3684 6735.771278918379 144 3683 6735.771278918379 143
"21720" 3692 7130.814853453098 152 3691 7130.814853453098 151
"21720" 3701 7459.117396556774 161 3700 7459.117396556774 160
"21720" 3707 7751.07612169741 167 3706 7751.07612169741 166
"21720" 3719 8272.287675816897 179 3718 8272.287675816897 178
"27544" 8980 389.6707539879683 26 8979 389.6707539879683 25
"27544" 8986 587.4388689022377 32 8985 587.4388689022377 31
"27544" 9006 1433.1014903337614 52 9005 1433.1014903337614 51
"27544" 9017 1943.2795951248554 63 9016 1943.2795951248554 62
"27544" 9027 2546.4260990986845 73 9026 2546.4260990986845 72
"27544" 9034 2922.0247889060797 80 9033 2922.0247889060797 79
"27544" 9044 3278.161637590469 90 9043 3278.161637590469 89
"27544" 9051 3549.01192760465 97 9050 3549.01192760465 96
"27544" 9061 4074.6361398046447 107 9060 4074.6361398046447 106
"27544" 9067 4269.490550109113 113 9066 4269.490550109113 112
"27544" 9074 4605.563169531571 120 9073 4605.563169531571 119
"27544" 9082 5016.388250469711 128 9081 5016.388250469711 127
"27544" 9108 6338.506169375717 154 9107 6338.506169375717 153
"27544" 9112 6473.375642599173 158 9111 6473.375642599173 157
"27544" 9117 6727.648242751587 163 9116 6727.648242751587 162
"27544" 9128 7429.591562264734 174 9127 7429.591562264734 173
"30420" 13216 1845.9135179484258 37 13215 1845.9135179484258 36
"30420" 13225 2173.814116168614 46 13224 2173.814116168614 45
"30420" 13239 2833.846124158434 60 13238 2833.846124158434 59
"30420" 13308 7557.516737944444 129 13307 7557.516737944444 128
"30420" 13325 8498.145749108788 146 13324 8498.145749108788 145
"30420" 13330 8797.09972840168 151 13329 8797.09972840168 150
"30420" 13335 9065.13344372001 156 13334 9065.13344372001 155
"30420" 13345 9618.474732894794 166 13344 9618.474732894794 165
"30420" 13351 9878.61206944056 172 13350 9878.61206944056 171
"30420" 13365 10535.427596066318 186 13364 10535.427596066318 185
"30420" 13375 10966.200613945613 196 13374 10966.200613945613 195
"30420" 13393 12249.063403753944 214 13392 12249.063403753944 213
leading_or_trailing_whitespaces WARNING 19

leading_or_trailing_whitespaces

The value in CSV file has leading or trailing whitespaces.

This notice is emitted for values protected with double quotes since whitespaces for non-protected values are trimmed automatically by CSV parser.

The validator strips whitespaces from protected values. We do not see any use case when such a whitespace may be needed. On the other hand, some real-world feeds use trailing whitespaces for some values and omit them for the others. This is causing the largest problem when a primary key and a foreign key differ just by a whitespace: it is clear that they are intended to be the same, that is why we always strip whitespaces.

You can see more about this notice here.

filename (?) The name of the faulty file. csvRowNumber (?) The row of the faulty record. fieldName (?) Faulty record's field name. fieldValue (?) Faulty value.
"stops.txt" 12 "stop_name" "Jefferson & Kirk "
"stops.txt" 17 "stop_name" "Carillion Roanoke Memorial Hospital "
"stops.txt" 18 "stop_name" "Radford University Carilion "
"stops.txt" 26 "stop_name" "Blackburg Municipal Building "
"stops.txt" 172 "stop_name" "Colonial NB at 220S On-Ramp "
"stops.txt" 192 "stop_name" "Cove at Hershberger "
"stops.txt" 198 "stop_name" "Cove at Hershberger "
"stops.txt" 547 "stop_name" "Orange EB at King "
"stops.txt" 684 "stop_name" "Valley View Mall "
"stops.txt" 696 "stop_name" "Vineyard SB at Rosies "
"stops.txt" 777 "stop_name" "Harper Hall "
"stops.txt" 782 "stop_name" "3rd St at Church Ave "
"stops.txt" 784 "stop_name" "3rd St at Church Ave "
"stops.txt" 787 "stop_name" "3rd St Station Star Line "
"stops.txt" 789 "stop_name" "Franklin Road at Avenham "
"routes.txt" 2 "route_long_name" "Star Line Trolley "
"routes.txt" 7 "route_short_name" "86 "
"routes.txt" 25 "route_short_name" "85 "
"routes.txt" 27 "route_desc" "From Veteran's Hospital to Salem Goodwill via Roanoke Blvd and East Main St. with stops at the Salem Civic Center, Andrew Lewis "
missing_feed_info_date WARNING 1

missing_feed_info_date

One of feed_start_date or feed_end_date is specified, but not both.

Even though feed_info.start_date and feed_info.end_date are optional, if one field is provided the second one should also be provided.

You can see more about this notice here.

csvRowNumber (?) The row number of the faulty record. fieldName (?) Either `feed_end_date` or `feed_start_date`.
2 "feed_end_date"
missing_recommended_field WARNING 1

missing_recommended_field

A recommended field is missing.

The given field has no value in some input row, even though values are recommended.

You can see more about this notice here.

filename (?) The name of the faulty file. csvRowNumber (?) The row of the faulty record. fieldName (?) The name of the missing field.
"feed_info.txt" 2 "feed_end_date"
route_color_contrast WARNING 4

route_color_contrast

Insufficient route color contrast.

A route's color and route_text_color should be contrasting.

You can see more about this notice here.

routeId (?) The id of the faulty record. csvRowNumber (?) The row number of the faulty record. routeColor (?) The faulty record's HTML route color. routeTextColor (?) The faulty record's HTML route text color.
"4804" 17 "#ABD8DA" "#FFFFFF"
"4805" 18 "#ABD8DA" "#FFFFFF"
"4806" 19 "#ABD8DA" "#FFFFFF"
"4807" 20 "#ABD8DA" "#FFFFFF"
route_long_name_contains_short_name WARNING 30

route_long_name_contains_short_name

Long name should not contain short name for a single route.

In routes.txt, route_long_name should not contain the value for route_short_name, because when both are provided, they are often combined by transit applications. Note that only one of the two fields is required. If there is no short name used for a route, use route_long_name only.

Good examples:

route_short_name/route_long_name Dataset
"N"/"Judah" Muni San Fransisco
"6"/"ML King Jr Blvd" Trimet Portland Streetcar
"55"/"Boulevard Saint Laurent" STM Montreal
"1"/"Rangiora/Cashmere" Metro Christchurch

Bad examples:

route_short_name/route_long_name
"604"/"604"
"14"/"Route 14"
"2"/"Route 2: Bellows Falls In-Town"

You can see more about this notice here.

routeId (?) The id of the faulty record. csvRowNumber (?) The row number of the faulty record. routeShortName (?) The faulty record's `route_short_name`. routeLongName (?) The faulty record's `route_long_name`.
"4037" 4 "Smart Way Express" "Smart Way Express"
"4724" 5 "12" "12-Hoback to 3rd St Station"
"4780" 6 "32" "32- Blue Hills to 3rd St Station"
"4781" 7 "86" "86 - Peters Creek Road to 3rd St Station"
"4782" 8 "11" "11- 3rd St Station to Valley View Mall"
"4783" 9 "15" "15- 3rd St Station to Hoback"
"4787" 10 "16" "16- Valley View Mall to 3rd St Station"
"4789" 11 "21" "21- 3rd St Station to Valley Court"
"4790" 12 "22" "22- Valley Court to 3rd St Station"
"4791" 13 "25" "25- 3rd St Station to Airport"
"4792" 14 "26" "26- Airport to 3rd St Station"
"4793" 15 "31" "31- 3rd St Station to Blue Hills"
"4803" 16 "51" "51 - 3rd St Station to Tanglewood Mall"
"4804" 17 "61" "61 - 3rd St Station to Brambleton and Red Rock"
"4805" 18 "62" "62 - Red Rock to 3rd Street Station"
"4806" 19 "65" "65 - 3rd St Station to Grandin Road (PH High School)"
"4807" 20 "66" "66 -Grandin Road (PH High School) to 3rd St Station"
"4808" 21 "71" "71 - 3rd St Station to Lewis Gale Hospital"
"4809" 22 "72" "72 - Lewis Gale Hospital to 3rd St Station"
"4810" 23 "75" "75 - 3rd St Station to the Veteran's Hospital"
"4811" 24 "76" "76 - Veteran's Hospital to 3rd St Station"
"4816" 25 "85" "85 - 3rd St Station to Peters Creek Road"
"4818" 27 "92" "92 - Salem/VA Hospital to 3rd St Station"
"4832" 28 "35" "35 - 3rd St Station to Vinton"
"4833" 29 "36" "36 - Vinton to 3rd St Station"
"4834" 30 "41" "41 - 3rd St Station to Southeast Roanoke"
"4835" 31 "42" "42 - Southeast Roanoke to 3rd St Station"
"4836" 32 "52" "52 - Tanglewood Mall to 3rd St Station"
"4837" 33 "55" "55 - 3rd St Station to Tanglewood Mall"
"4838" 34 "56" "56 - Tanglwood Mall to 3rd Street Station"
route_short_name_too_long WARNING 1

route_short_name_too_long

Short name of a route is too long (more than 12 characters).

You can see more about this notice here.

routeId (?) The id of the faulty record. csvRowNumber (?) The row number of the faulty record. routeShortName (?) The faulty record's `route_short_name`.
"4037" 4 "Smart Way Express"
same_name_and_description_for_route WARNING 6

same_name_and_description_for_route

Same name and description for route.

The GTFS spec defines routes.txt route_desc as:

Description of a route that provides useful, quality information. Do not simply duplicate the name of the route.

See the GTFS and GTFS Best Practices links below for more examples of how to populate the route_short_name, route_long_name, and route_desc fields.

You can see more about this notice here.

csvRowNumber (?) The row number of the faulty record. routeId (?) The id of the faulty record. routeDesc (?) The `routes.routes_desc` of the faulty record. specifiedField (?) Either `route_short_name` or `route_long_name`.
2 "3894" "Trolley" "route_short_name"
3 "3913" "Smart Way Commuter" "route_long_name"
4 "4037" "Smart Way Express" "route_short_name"
30 "4834" "41 - 3rd St Station to Southeast Roanoke" "route_long_name"
31 "4835" "42 - Southeast Roanoke to 3rd St Station" "route_long_name"
32 "4836" "52 - Tanglewood Mall to 3rd St Station" "route_long_name"
stop_without_stop_time WARNING 3

stop_without_stop_time

A stop in stops.txt is not referenced by any stop_times.stop_id.

Such stops are not used by any trip and normally do not provide user value. This notice may indicate a typo in stop_times.txt.

You can see more about this notice here.

csvRowNumber (?) The row number of the faulty record. stopId (?) The id of the faulty stop. stopName (?) The name of the faulty stop.
139 "5695903" "Bullitt EB at 13th"
636 "5696450" "Salem Turnpike WB at Westwood"
815 "9568747" "Roanoke Blvd (Salem Health and Rehab)"
trip_distance_exceeds_shape_distance_below_threshold WARNING 120

trip_distance_exceeds_shape_distance_below_threshold

The distance between the last shape point and last stop point is greater than 0 but less than the 11.1m threshold.

You can see more about this notice here.

Only the first 50 of 120 affected records are displayed below.

tripId (?) The faulty record's trip id. shapeId (?) The faulty record's shape id. maxTripDistanceTraveled (?) The faulty record's trip max distance traveled. maxShapeDistanceTraveled (?) The faulty record's shape max distance traveled. geoDistanceToShape (?) The distance in meters between the shape and the stop.
"B10T10" "21717" 7958.056039796396 7958.031294975886 0.0
"B10T12" "21717" 7958.056039796396 7958.031294975886 0.0
"B10T14" "21717" 7958.056039796396 7958.031294975886 0.0
"B10T16" "21717" 7958.056039796396 7958.031294975886 0.0
"B10T18" "21717" 7958.056039796396 7958.031294975886 0.0
"B10T2" "21717" 7958.056039796396 7958.031294975886 0.0
"B10T20" "21717" 7958.056039796396 7958.031294975886 0.0
"B10T22" "21717" 7958.056039796396 7958.031294975886 0.0
"B10T24" "21717" 7958.056039796396 7958.031294975886 0.0
"B10T26" "21717" 7958.056039796396 7958.031294975886 0.0
"B10T28" "21717" 7958.056039796396 7958.031294975886 0.0
"B10T30" "21717" 7958.056039796396 7958.031294975886 0.0
"B10T4" "21717" 7958.056039796396 7958.031294975886 0.0
"B10T6" "21717" 7958.056039796396 7958.031294975886 0.0
"B10T8" "21717" 7958.056039796396 7958.031294975886 0.0
"B11T1" "21716" 9810.64138975939 9810.64138975922 0.0
"B11T11" "21716" 9810.64138975939 9810.64138975922 0.0
"B11T13" "21716" 9810.64138975939 9810.64138975922 0.0
"B11T15" "21716" 9810.64138975939 9810.64138975922 0.0
"B11T17" "21716" 9810.64138975939 9810.64138975922 0.0
"B11T19" "21716" 9810.64138975939 9810.64138975922 0.0
"B11T21" "21716" 9810.64138975939 9810.64138975922 0.0
"B11T23" "21716" 9810.64138975939 9810.64138975922 0.0
"B11T25" "21716" 9810.64138975939 9810.64138975922 0.0
"B11T27" "21716" 9810.64138975939 9810.64138975922 0.0
"B11T29" "21716" 9810.64138975939 9810.64138975922 0.0
"B11T3" "21716" 9810.64138975939 9810.64138975922 0.0
"B11T5" "21716" 9810.64138975939 9810.64138975922 0.0
"B11T7" "21716" 9810.64138975939 9810.64138975922 0.0
"B11T9" "21716" 9810.64138975939 9810.64138975922 0.0
"B2T1" "21619" 8532.024077744103 8531.966733278186 0.0
"B2T12" "21690" 12929.722633573538 12929.687885564945 0.0
"B2T13" "21619" 8532.024077744103 8531.966733278186 0.0
"B2T16" "21690" 12929.722633573538 12929.687885564945 0.0
"B2T17" "21619" 8532.024077744103 8531.966733278186 0.0
"B2T20" "21690" 12929.722633573538 12929.687885564945 0.0
"B2T21" "21619" 8532.024077744103 8531.966733278186 0.0
"B2T24" "21690" 12929.722633573538 12929.687885564945 0.0
"B2T25" "21619" 8532.024077744103 8531.966733278186 0.0
"B2T28" "21690" 12929.722633573538 12929.687885564945 0.0
"B2T29" "21619" 8532.024077744103 8531.966733278186 0.0
"B2T4" "21690" 12929.722633573538 12929.687885564945 0.0
"B2T5" "21619" 8532.024077744103 8531.966733278186 0.0
"B2T8" "21690" 12929.722633573538 12929.687885564945 0.0
"B2T9" "21619" 8532.024077744103 8531.966733278186 0.0
"B3T10" "21690" 12929.722633573538 12929.687885564945 0.0
"B3T11" "21619" 8532.024077744103 8531.966733278186 0.0
"B3T14" "21690" 12929.722633573538 12929.687885564945 0.0
"B3T15" "21619" 8532.024077744103 8531.966733278186 0.0
"B3T18" "21690" 12929.722633573538 12929.687885564945 0.0
unknown_file INFO 3

unknown_file

A file is unknown.

You can see more about this notice here.

filename (?) The name of the unknown file.
"calendar_attributes.txt"
"realtime_routes.txt"
"directions.txt"