Feed status · checked 2026-08-02
Chicago Transit Authority (CTA)
Based on the feed this agency publishes
Service mode Metro + Bus
down 0.5 since 2026-08-01
Catalogued in Illinois.
A data-quality and completeness lens to help an agency improve its GTFS feed. Not an official compliance determination from any transit program. New to this? How to read your scorecard. Interactive view of this scorecard. Rubric v1.3, validator 8.0.1.
Checked for changes 3 hours ago; last changed 23 days ago.
Measured 3 of 4 score categories from the agency's own feed.
How we measured this
Confidence in this measurement: medium.
- Realtime quality was not measured this run. It does not count against the grade.
- The feed was downloaded from the agency's own URL.
Confidence describes how much the pipeline could measure this run, not the feed itself. It never changes the grade.
Top things to fix
Review the rule documentation for 'equal_shape_distance_diff_coordinates' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.
Equal shape distance diff coordinates (flagged by the MobilityData validator). See the linked rule for what this affects.
⏱ Varies.worth about +24 points in its category
Add the destination, direction, or 'via' label riders actually see to trip_headsign. Do not copy the route name. If the label changes during the trip, use stop_headsign.
94667 of 94667 trips lack rider-facing destination or direction text. When a route has multiple directions or patterns, the route name alone may not tell riders which service is coming.
⏱ Usually one value per route pattern in your scheduling source.worth about +15 points in its category
Add fare_attributes.txt (or Fares v2 files) with your fare structure. If your service is fare-free, ask to have it marked fare-free instead.
The feed contains no fare information. Riders see 'fare unknown' in trip planners and can't budget their trip; visitors are most affected.
⏱ A small file for most flat-fare systems.worth about +15 points in its category
Finding handoff
Move one finding to a recheck
Select one finding. Copy the request, make the change in the feed-producing tool, then compare the next complete run.
- Feed evidence
- Equal shape distance diff coordinates (flagged by the MobilityData validator).
- Next action
- Review the rule documentation for 'equal_shape_distance_diff_coordinates' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.
- Recheck
- Publish the changed feed at the same URL. On the next complete, comparable scorecard run, confirm that this finding is no longer reported.
Copy handoff text
- Feed evidence
- 94667 of 94667 trips lack rider-facing destination or direction text.
- Next action
- Add the destination, direction, or 'via' label riders actually see to trip_headsign. Do not copy the route name. If the label changes during the trip, use stop_headsign.
- Recheck
- Publish the changed feed at the same URL. On the next complete, comparable scorecard run, confirm that this finding is no longer reported.
Copy handoff text
- Feed evidence
- The feed contains no fare information.
- Next action
- Add fare_attributes.txt (or Fares v2 files) with your fare structure. If your service is fare-free, ask to have it marked fare-free instead.
- Recheck
- Publish the changed feed at the same URL. On the next complete, comparable scorecard run, confirm that this finding is no longer reported.
Copy handoff text
How to make and check these changes
Check the result on the published feed. Read the guide, make the change in your tool, and use the next comparable run to see whether the finding is still reported. Only an action or ticket record can attribute who made the change.
Review the rule documentation for 'equal_shape_distance_diff_coordinates' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.
Make the change. Make this change in whatever tool produces your feed, then re-export.
Check the result. The next scorecard run checks this finding again. If a comparable check no longer reports it, the feed's clearance log records that result. This confirms feed state, not who made the change. Self-check a feed before you publish.
Add the destination, direction, or 'via' label riders actually see to trip_headsign. Do not copy the route name. If the label changes during the trip, use stop_headsign. · Read the fix guide
Make the change. Make this change in whatever tool produces your feed, then re-export.
Check the result. The next scorecard run checks this finding again. If a comparable check no longer reports it, the feed's clearance log records that result. This confirms feed state, not who made the change. Self-check a feed before you publish.
Add fare_attributes.txt (or Fares v2 files) with your fare structure. If your service is fare-free, ask to have it marked fare-free instead. · Read the fix guide
Make the change. Make this change in whatever tool produces your feed, then re-export.
Check the result. The next scorecard run checks this finding again. If a comparable check no longer reports it, the feed's clearance log records that result. This confirms feed state, not who made the change. Self-check a feed before you publish.
Rider view: what this feed publishes
A quick read of rider-facing information in this feed.
- Schedule visibility
- The feed's last published service date is in 59 days.
- Published accessibility data
- Accessibility information is stated for 100% of stops and 100% of trips. This measures published data, not whether stops or vehicles are physically usable.
- Fare information
- No fare information is published in the feed.
- Realtime information
- Realtime-feed availability and live-arrival coverage are not known from this scorecard.
Important: This does not rate service reliability. Riders should confirm current service alerts, fares, and accessibility accommodations with the transit operator before traveling.
Send your vendor a fix request
You may not control the GTFS export yourself. Copy this and send it to whoever runs your scheduling software export. It names each fix with the validator notice and a guide link.
Score by category
The MobilityData validator flagged 12 kinds of issue across 188812 instances (96894 error, 1475 warning, 90443 informational).
Service data covers the next 59 days.
100% of stops state wheelchair accessibility (99% marked accessible, 1% marked not accessible). This measures what the feed publishes, not whether a stop is physically usable. Fare data is not published.
100% of stops state accessibility (99% marked accessible). Reflects what the feed states, not verified physical usability.
3 accessibility depth signals
91 route badge(s) pair a color and text color below the WCAG 4.5:1 contrast bar (1, 3, N5, 7, 8, and more).
Consider: Adjust route_color or route_text_color so each pair clears 4.5:1. Often switching the text between black and white is enough.
10243 stop name(s) use abbreviations or symbols a screen reader may mispronounce, with no spoken form set ("Jackson & Austin Terminal", "Jackson & Lotus", "Jackson & Lockwood", and more).
Consider: Add tts_stop_name with the spoken form, e.g. 'Main Street and Second Avenue', for the affected stops.
This feed models stations or entrances but has no pathways.txt and levels.txt.
Consider: Add pathways.txt connecting entrances, platforms, and elevators, and levels.txt for each floor, so the step-free route is described.
Opportunities to strengthen the data, not deductions from the sub-score above. States what the second accessibility lens can check from the feed, not verified physical usability.
Not scored yet. Nothing here counts against the grade.
Routes and stops
Each route is drawn once, using the longest shape its trips follow; stops are the dots.
This feed has 11125 stops.
The route and stop data is ready below. Load the map only when you want the geographic view. It uses additional data.
Basemap: OpenFreeMap, © OpenStreetMap contributors. Routes and stops: this agency's GTFS feed.
- 1 (gray)
- 10 (red)
- 100 (red)
- 103 (gray)
- 106 (gray)
- 108 (gray)
- 11 (gray)
- 111 (gray)
- 111A (gray)
- 112 (gray)
- 115 (gray)
- 119 (gray)
- 12 (green)
- 120 (red)
- 121 (red)
- 124 (gray)
- 125 (red)
- 126 (gray)
- 130 (gray)
- 134 (red)
- 135 (red)
- 136 (red)
- 143 (red)
- 146 (red)
- 147 (red)
- 148 (red)
- 15 (gray)
- 151 (gray)
- 152 (gray)
- 155 (gray)
- 156 (gray)
- 157 (gray)
- 165 (gray)
- 169 (gray)
- 171 (gray)
- 172 (gray)
- 18 (gray)
- 192 (gray)
- 2 (red)
- 20 (green)
- 201 (gray)
- 206 (gray)
- 21 (gray)
- 22 (gray)
- 24 (gray)
- 26 (red)
- 28 (gray)
- 29 (gray)
- 3 (gray)
- 30 (gray)
- 31 (gray)
- 34 (green)
- 35 (gray)
- 36 (gray)
- 37 (gray)
- 39 (gray)
- 4 (green)
- 43 (gray)
- 44 (gray)
- 47 (green)
- 48 (gray)
- 49 (green)
- 49B (gray)
- 50 (gray)
- 51 (gray)
- 52 (gray)
- 52A (gray)
- 53 (green)
- 53A (gray)
- 54 (green)
- 54A (gray)
- 54B (gray)
- 55 (green)
- 55A (gray)
- 55N (gray)
- 56 (gray)
- 57 (gray)
- 59 (gray)
- 6 (red)
- 60 (green)
- 62 (gray)
- 62H (gray)
- 63 (green)
- 63W (gray)
- 65 (gray)
- 66 (green)
- 67 (gray)
- 68 (gray)
- 7 (gray)
- 70 (gray)
- 71 (gray)
- 72 (green)
- 73 (gray)
- 74 (gray)
- 75 (gray)
- 76 (gray)
- 77 (green)
- 78 (gray)
- 79 (green)
- 8 (gray)
- 80 (gray)
- 81 (green)
- 81W (gray)
- 82 (green)
- 84 (gray)
- 85 (gray)
- 85A (gray)
- 86 (gray)
- 87 (gray)
- 88 (gray)
- 8A (gray)
- 9 (green)
- 90 (gray)
- 91 (gray)
- 92 (gray)
- 93 (gray)
- 94 (gray)
- 95 (green)
- 96 (gray)
- 97 (gray)
- Blue Line (teal)
- Brown Line (brown)
- Green Line (green)
- J14 (teal)
- N5 (gray)
- Orange Line (red)
- Purple Line (purple)
- Pink Line (pink)
- Red Line (red)
- X4 (red)
- X49 (red)
- X9 (red)
- Yellow Line (yellow)
| Route | Type | Line color |
|---|---|---|
| 1 Bronzeville/Union Station | Bus | gray |
| 10 Obama Presidential Center/Museum of Science & Industry Express | Bus | red |
| 100 Jeffery Manor Express | Bus | red |
| 103 West 103rd | Bus | gray |
| 106 East 103rd | Bus | gray |
| 108 Halsted/95th | Bus | gray |
| 11 Lincoln | Bus | gray |
| 111 111th/King Drive | Bus | gray |
| 111A Pullman Shuttle | Bus | gray |
| 112 Vincennes/111th | Bus | gray |
| 115 Pullman/115th | Bus | gray |
| 119 Michigan/119th | Bus | gray |
| 12 Roosevelt | Bus | green |
| 120 Ogilvie/Streeterville Express | Bus | red |
| 121 Union/Streeterville Express | Bus | red |
| 124 Navy Pier | Bus | gray |
| 125 Water Tower Express | Bus | red |
| 126 Jackson | Bus | gray |
| 130 Museum Campus | Bus | gray |
| 134 Stockton/LaSalle Express | Bus | red |
| 135 Clarendon/LaSalle Express | Bus | red |
| 136 Sheridan/LaSalle Express | Bus | red |
| 143 Stockton/Michigan Express | Bus | red |
| 146 Inner Lake Shore/Michigan Express | Bus | red |
| 147 Outer DuSable Lake Shore Express | Bus | red |
| 148 Clarendon/Michigan Express | Bus | red |
| 15 Jeffery Local | Bus | gray |
| 151 Sheridan | Bus | gray |
| 152 Addison | Bus | gray |
| 155 Devon | Bus | gray |
| 156 LaSalle | Bus | gray |
| 157 Streeterville/Taylor | Bus | gray |
| 165 West 65th | Bus | gray |
| 169 69th/UPS Express | Bus | gray |
| 171 U. of Chicago/Hyde Park | Bus | gray |
| 172 U. of Chicago/Kenwood | Bus | gray |
| 18 16th/18th | Bus | gray |
| 192 University of Chicago Hospitals Express | Bus | gray |
| 2 Hyde Park Express | Bus | red |
| 20 Madison | Bus | green |
| 201 Central/Ridge | Bus | gray |
| 206 Evanston Circulator | Bus | gray |
| 21 Cermak | Bus | gray |
| 22 Clark | Bus | gray |
| 24 Wentworth | Bus | gray |
| 26 South Shore Express | Bus | red |
| 28 Stony Island | Bus | gray |
| 29 State | Bus | gray |
| 3 King Drive | Bus | gray |
| 30 South Chicago | Bus | gray |
| 31 31st | Bus | gray |
| 34 South Michigan | Bus | green |
| 35 31st/35th | Bus | gray |
| 36 Broadway | Bus | gray |
| 37 Sedgwick | Bus | gray |
| 39 Pershing | Bus | gray |
| 4 Cottage Grove | Bus | green |
| 43 43rd | Bus | gray |
| 44 Wallace/Racine | Bus | gray |
| 47 47th | Bus | green |
| 48 South Damen | Bus | gray |
| 49 Western | Bus | green |
| 49B North Western | Bus | gray |
| 50 Damen | Bus | gray |
| 51 51st | Bus | gray |
| 52 Kedzie | Bus | gray |
| 52A South Kedzie | Bus | gray |
| 53 Pulaski | Bus | green |
| 53A South Pulaski | Bus | gray |
| 54 Cicero | Bus | green |
| 54A North Cicero/Skokie Blvd. | Bus | gray |
| 54B South Cicero | Bus | gray |
| 55 Garfield | Bus | green |
| 55A 55th/Austin | Bus | gray |
| 55N 55th/Narragansett | Bus | gray |
| 56 Milwaukee | Bus | gray |
| 57 Laramie | Bus | gray |
| 59 59th/61st | Bus | gray |
| 6 Jackson Park Express | Bus | red |
| 60 Blue Island/26th | Bus | green |
| 62 Archer | Bus | gray |
| 62H Archer/Harlem | Bus | gray |
| 63 63rd | Bus | green |
| 63W West 63rd | Bus | gray |
| 65 Grand | Bus | gray |
| 66 Chicago | Bus | green |
| 67 67th/69th/71st | Bus | gray |
| 68 Northwest Highway | Bus | gray |
| 7 Harrison | Bus | gray |
| 70 Division | Bus | gray |
| 71 71st/South Shore | Bus | gray |
| 72 North | Bus | green |
| 73 Armitage | Bus | gray |
| 74 Fullerton | Bus | gray |
| 75 74th/75th | Bus | gray |
| 76 Diversey | Bus | gray |
| 77 Belmont | Bus | green |
| 78 Montrose | Bus | gray |
| 79 79th | Bus | green |
| 8 Halsted | Bus | gray |
| 80 Irving Park | Bus | gray |
| 81 Lawrence | Bus | green |
| 81W West Lawrence | Bus | gray |
| 82 Kimball/Homan | Bus | green |
| 84 Peterson | Bus | gray |
| 85 Central | Bus | gray |
| 85A North Central | Bus | gray |
| 86 Narragansett/Ridgeland | Bus | gray |
| 87 87th | Bus | gray |
| 88 Higgins | Bus | gray |
| 8A South Halsted | Bus | gray |
| 9 Ashland | Bus | green |
| 90 Harlem | Bus | gray |
| 91 Austin | Bus | gray |
| 92 Foster | Bus | gray |
| 93 California/Dodge | Bus | gray |
| 94 California | Bus | gray |
| 95 95th | Bus | green |
| 96 Lunt | Bus | gray |
| 97 Skokie | Bus | gray |
| Blue Line | Subway / metro | teal |
| Brown Line | Subway / metro | brown |
| Green Line | Subway / metro | green |
| J14 Jeffery Jump | Bus | teal |
| N5 South Shore Night Bus | Bus | gray |
| Orange Line | Subway / metro | red |
| Purple Line | Subway / metro | purple |
| Pink Line | Subway / metro | pink |
| Red Line | Subway / metro | red |
| X4 Cottage Grove Express | Bus | red |
| X49 Western Express | Bus | red |
| X9 Ashland Express | Bus | red |
| Yellow Line | Subway / metro | yellow |
List every stop
- Jackson & Austin Terminal
- Jackson & Leamington
- 1900 W Van Buren
- North Ave & Nordica
- Kedzie & 77th Street
- Kedzie & 72nd Street
- Kedzie & Marquette Rd
- Kedzie & 66th Street
- Kedzie & 65th Street
- Kedzie & 64th Street
- North Ave & Neva
- Kedzie & 64th Street
- Kedzie & 65th Street
- Kedzie & 66th Street
- Kedzie & Marquette Rd
- Kedzie & 71st Street
- Kedzie & 72nd Street
- Kedzie & 73rd Street
- Harlem & North Ave
- Kedzie & 77th Street
- Kedzie & 78th Street
- Kedzie & 79th Street
- Kedzie & 80th Street
- Kedzie & 81st Street
- Kedzie & 82nd Street
- Kedzie & 83rd Street
- Kedzie & 84th Street
- Kedzie & 85th Street
- 8600 S Kedzie
- Kedzie & 87th Street
- Kedzie & 88th Street
- Kedzie & 89th Street
- Kedzie & 90th Street
- Kedzie & 91st Street
- Kedzie & 92nd Street
- Kedzie & 93rd Street
- Kedzie & 94th Street
- Kedzie & 95th Street
- Kedzie & 96th Street
- Harlem & Wabansia
- Kedzie & 97th Street
- Kedzie & 98th Street
- Kedzie & 99th Street
- Kedzie & 100th Street
- Kedzie & 101st Street
- Kedzie & 102nd Street
- Kedzie & 103rd Street
- Kedzie & 104th Street
- Kedzie & 105th Street
- Kedzie & 106th Street
- Wabansia & Neva
- Kedzie & 108th Street
- Kedzie & 109th Street
- Kedzie & 110th Street
- Kedzie & 111th Street
- Kedzie & 112th Street
- Kedzie & 113th Street
- Kedzie & 114th Street
- Kedzie & 115th Street
- 115th Street & Spaulding
- 115th Street & Homan
- 115th Street & St. Louis
- 115th Street & Central Park
- 115th Street & Lawndale
- 115th Street & Hamlin
- 115th Street & Springfield Terminal
- 67th Street & Oglesby Terminal
- 67th Street & Stony Island
- 67th Street & Blackstone
- 67th Street & Dorchester
- 67th Street & Kenwood
- 67th Street & Kimbark
- 67th Street & Woodlawn
- 67th Street & Minerva
- 67th Street & University
- 67th Street & Greenwood
- 67th Street & Ellis
- 67th Street & Ingleside
- 67th Street & Drexel
- 67th Street & Cottage Grove
- 67th Street & Langley
- 67th Street & St. Lawrence
- Rhodes & 67th Street
- Rhodes & 68th Street
- Keefe & South Chicago
- 69th Street & Perry
- 69th Street & Wentworth
- 69th Street & Princeton
- 69th Street & Harvard
- 69th Street & Stewart
- 69th Street & Normal
- 69th Street & Lowe
- 69th Street & Union
- 69th Street & Halsted
- 69th Street & Peoria
- 69th Street & Morgan
- Van Buren & Damen
- 69th Street & Aberdeen
- 69th Street & Racine
- 69th Street & Throop
- 69th Street & Loomis
- 69th Street & Laflin
- 69th Street & Ashland
- 69th Street & Paulina
- Howard & Sheridan
- 69th Street & Wood
- 69th Street & Wolcott
- 69th Street & Damen
- 69th Street & Hoyne
- 69th Street & Bell
- 69th Street & Oakley
- Western & 69th Street
- 71st Street & Campbell
- 71st Street & Rockwell
- Sheridan & Birchwood
- 71st Street & California
- 71st Street & Spaulding
- 71st Street & Homan
- 71st Street & St. Louis
- 71st Street & Central Park
- 71st Street & Hamlin
- 71st Street & Springfield
- 71st Street & Pulaski
- 71st Street & Springfield
- 71st Street & Hamlin
- 71st Street & Lawndale
- 3600 W 71st Street
- 71st Street & St. Louis
- 71st Street & Homan
- 71st Street & Spaulding
- Sheridan & Jarvis
- 71st Street & Kedzie
- 71st Street & Albany
- 71st Street & Washtenaw
- 71st Street & Rockwell
- 71st Street & Campbell
- Western & 71st Street
- 69th Street & Oakley
- 69th Street & Bell
- Sheridan & Sherwin
- 69th Street & Hoyne
- 69th Street & Damen
- 69th Street & Wolcott
- 69th Street & Wood
- 69th Street & Paulina
- 69th Street & Laflin
- Sheridan & Chase
- 69th Street & Loomis
- 69th Street & Throop
- 69th Street & Racine
- 69th Street & Aberdeen
- 69th Street & Morgan
- 69th Street & Peoria
- 69th Street & Halsted
- 69th Street & Union
- Sheridan & Touhy
- 69th Street & Lowe
- 69th Street & Normal
- 69th Street & Stewart
- 69th Street & Harvard
- 69th Street & Princeton
- 69th Street & Wentworth
- 69th Street & Perry
- 69th Red Line Station
- 69th Street & State
- Sheridan & Estes
- Rhodes & 68th Street
- Rhodes & 67th Street
- 67th Street & St. Lawrence
- 67th Street & Langley
- 67th Street & Cottage Grove
- 67th Street & Drexel
- 67th Street & Ingleside
- 67th Street & Ellis
- 67th Street & Greenwood
- 67th Street & University
- 67th Street & Minerva
- 67th Street & Woodlawn
- 67th Street & Kimbark
- 67th Street & Kenwood
- 67th Street & Dorchester
- 67th Street & Blackstone
- 67th Street & Stony Island
- La Rabida Hospital
- Cicero & Pensacola Terminal
- Sheridan & Lunt
- Cicero & Cullom
- Cicero & Belle Plaine
- Cicero & Irving Park/Milwaukee
- Cicero & Byron
- Cicero & Grace
- Cicero & Waveland
- Cicero & Addison
- Cicero & Cornelia
- Sheridan & Morse
- Cicero & Roscoe
- Cicero & School
- Cicero & George
- Cicero & Diversey
- Cicero & Wrightwood
- Cicero & Dickens
- Cicero & Armitage
- Cicero & Cortland
- Cicero & Grand
- Cicero & Wabansia
- Cicero & North Ave
- Cicero & Le Moyne
- Sheridan & Pratt
- Cicero & Hirsch
- Cicero & Potomac
- Cicero & Thomas
- Cicero & Iowa
- Cicero & Huron
- Cicero & Hubbard
- Cicero & Lake (Green Line)
- Cicero & Adams
- Cicero & Jackson
- Cicero & Van Buren
- Sheridan & North Shore
- Cicero & Congress
- Cicero & Harrison
- Cicero Blue Line Station
- Cicero & Polk
- Cicero & Fifth Avenue
- Cicero & Roosevelt
- Cicero & 13th Street
- Cicero & 14th Street
- Cicero & 15th Street
- Cicero & 18th Street
- Cicero & 21st Place (Pink Line)
- Cicero & Cermak
- Cicero & 24th Place Terminal
- Sheridan & Loyola (Red Line)
- Cicero & Cermak (Pink Line)
- Cicero & 21st Street
- Cicero & 18th Street
- Cicero & 16th Street
- Cicero & 15th Street
- Cicero & 14th Street
- Sheridan & Arthur
- Cicero & 13th Street
- Cicero & Fifth Avenue
- Cicero & Polk
- Cicero & Lexington (Blue Line)
- Cicero & Harrison
- Cicero & Congress Parkway
- Cicero & Van Buren
- Sheridan & Broadway/Devon
- Cicero & Madison
- Cicero & Maypole
- and 10875 more (see the full list on the map or in the GeoJSON)
Over time
Overall score across the last 4 checks — down 0.5 since 2026-08-01.
Show the numbers
| Check | Score | Change |
|---|---|---|
| 2026-07-25 | 52.2 | first check |
| 2026-07-30 | 52.2 | no change |
| 2026-08-01 | 52.2 | no change |
| 2026-08-02 | 51.7 | down 0.5 |
What changed since your last check
- Correctness no change
- Freshness down 1.7
- Rider experience no change
What changed in this feed
Overall score fell 0.5 points since 2026-08-01.
Same feed file as 2026-08-01; the published zip did not change.
Subscribe to this feed’s changes (Atom) to hear about grade drops in a reader, with no sign-up.
Everything we checked
17 findings, ordered by severity.
Show every finding
- Error96894 instances
Equal shape distance diff coordinates (flagged by the MobilityData validator).
See the linked rule for what this affects.
Fix: Review the rule documentation for 'equal_shape_distance_diff_coordinates' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed. (Varies.)
Finding code: equal_shape_distance_diff_coordinates · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
- Warning94667 instances
94667 of 94667 trips lack rider-facing destination or direction text.
When a route has multiple directions or patterns, the route name alone may not tell riders which service is coming.
Fix: Add the destination, direction, or 'via' label riders actually see to trip_headsign. Do not copy the route name. If the label changes during the trip, use stop_headsign. (Usually one value per route pattern in your scheduling source.)
Finding code: scorecard_missing_headsigns · Read the fix guide · See GTFS Best Practices (opens GTFS Best Practices on an external site)
- Warning1033 instances
Equal shape distance diff coordinates distance below threshold (flagged by the MobilityData validator).
See the linked rule for what this affects.
Fix: Review the rule documentation for 'equal_shape_distance_diff_coordinates_distance_below_threshold' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed. (Varies.)
Finding code: equal_shape_distance_diff_coordinates_distance_below_threshold · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
- Warning348 instances
Some route lines list the same point twice in a row.
Repeated points don't hurt riders, but they can skew distance math and hint at a shaky export.
Fix: Turn on shape cleanup in your export tool, or drop the repeated points from shapes.txt. (Usually one export setting.)
Finding code: equal_shape_distance_same_coordinates · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
- Warning37 instances
Some service calendars in the feed have already ended.
Expired calendars are dead weight and can hide real schedule problems from your staff and vendors.
Fix: Remove past service periods the next time you export the feed. (One setting in most export tools.)
Finding code: expired_calendar · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
- Warning36 instances
Some rider-facing names are in ALL CAPS or all lowercase.
ALL-CAPS stop and headsign names are harder to read in apps and are read awkwardly by screen readers.
Fix: Use mixed case for stop names and headsigns (e.g. 'Main St & 2nd Ave', not 'MAIN ST & 2ND AVE'). (Often a bulk fix in your scheduling software.)
Finding code: mixed_case_recommended_field · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
- Warning11 instances
Some stops sit far from the route line, going by the feed's own distance values.
Trip planners may draw the route down the wrong path or point riders to the wrong boarding location.
Fix: Check the flagged stops' shape_dist_traveled against the route shape, and re-generate it on export if they disagree. (Usually an export-tool fix, not hand editing.)
Finding code: stop_too_far_from_shape_using_user_distance · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
- Warning6 instances
Some stops sit far from the route line they belong to.
Trip planners may draw the transit vehicle route through the wrong path or point riders to the wrong boarding location.
Fix: Check the flagged stops' coordinates and the route shape in your scheduling software; re-snap whichever is misplaced. (A few minutes per flagged stop.)
Finding code: stop_too_far_from_shape · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
- Warning3 instances
Some values have extra spaces at the start or end.
A stray space can break a match, so a stop or route may fail to link across files.
Fix: Trim leading and trailing spaces on export. The scorecard's auto-fixed copy already does this. (Usually one export setting.)
Finding code: leading_or_trailing_whitespaces · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
- Warning1 instance
A file GTFS asks for (usually feed_info.txt) is missing.
feed_info.txt tells apps who publishes the feed and when it expires; without it nobody is warned before data goes stale.
Fix: Add feed_info.txt with publisher name, URL, language, and feed_start_date/feed_end_date. (One small file, set once in export settings.)
Finding code: missing_recommended_file · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
- Warning1 instance
feed_info.txt is missing its start/end dates (the file itself is absent)
Apps and this scorecard can't warn anyone before the feed goes stale without stated validity dates.
Fix: Add feed_info.txt with feed_start_date and feed_end_date to your export. (Two fields, set once in export settings.)
Finding code: scorecard_missing_feed_info_dates · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
- Warning1 instance
The feed contains no fare information.
Riders see 'fare unknown' in trip planners and can't budget their trip; visitors are most affected.
Fix: Add fare_attributes.txt (or Fares v2 files) with your fare structure. If your service is fare-free, ask to have it marked fare-free instead. (A small file for most flat-fare systems.)
Finding code: scorecard_no_fare_data · Read the fix guide · See GTFS Best Practices (opens GTFS Best Practices on an external site)
- Warning1 instance
This feed models stations or entrances but has no pathways.txt.
Trip planners can't guide riders through the station, and there is no step-free route information for wheelchair users.
Fix: Add pathways.txt connecting entrances, platforms, and any elevators, with a level for each. (Worth it for multi-level or large stations; flat stops don't need it.)
Finding code: scorecard_station_no_pathways · Read the fix guide · See GTFS Schedule reference (opens the GTFS Schedule reference on an external site)
- Info90440 instances
Unsorted stop times (flagged by the MobilityData validator).
See the linked rule for what this affects.
Fix: Review the rule documentation for 'unsorted_stop_times' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed. (Varies.)
Finding code: unsorted_stop_times · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
- Info2 instances
Some files contain columns that are not part of the GTFS spec.
Harmless to riders, but apps ignore these columns and they can hide typos in real column names.
Fix: Check the flagged column names for misspellings of standard GTFS fields; remove them if they are vendor extras. (A quick look at the flagged files.)
Finding code: unknown_column · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
- Info1 instance
The feed includes a file that is not part of the GTFS spec.
Apps ignore files they don't know, and a stray file can hide a misspelled standard file name.
Fix: Check the flagged file name for a typo of a standard GTFS file. Remove it if it is a vendor extra. (A quick look at the flagged file.)
Finding code: unknown_file · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
- Info1 instance
feed_info.txt has no technical contact (feed_contact_email or feed_contact_url).
Trip-planning apps and regional data coordinators have nobody to email when they spot a problem with your feed, so problems linger.
Fix: Add feed_contact_email to feed_info.txt. (One field.)
Finding code: scorecard_no_feed_contact · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
NTD GTFS readiness Needs attention
This feed is close to NTD-ready. 1 validator error to resolve.
- Published Ready
- Published at a public URL.
- Valid Needs attention
- 1 validator error to resolve.
- Current Ready
- Service data covers the next 59 days.
- agency_id provided Ready
- agency.txt provides agency_id. For RY2026, keep one stable value for each NTD reporter represented in the feed and crosswalk each value on the P-50 form.
- agency_id equals your NTD ID (optional) Not checked yet
- This feed provides agency_id. For RY2026, keep one stable value for each NTD reporter represented in the feed and crosswalk it on the P-50 form. The value does not need to equal the five-digit NTD ID; we do not have that ID on file, so the optional equality comparison is not checked yet.
- shapes.txt covers your trips Ready
- All 94667 trips have a shape in shapes.txt.
In plain words: if you report to the federal transit database, you have to publish a working, up-to-date feed, provide a stable agency_id for each represented reporter, and confirm the feed and P-50 crosswalk each year. This box is a heads-up; your filings are the official check.
A readiness signal mapping this feed to the FTA National Transit Database GTFS requirement (Report Year 2023 onward: a public, valid, current feed, certified annually on the D-10). For RY2026, each represented reporter needs a stable agency_id, unique within the feed and crosswalked to its five-digit NTD ID on P-50; the values do not need to be equal. FTA also requires shapes.txt in the published GTFS: Full Reporters from Report Year 2025, and Reduced, Rural, and Tribal Reporters from Report Year 2026. Not an official determination; your certification is the official check.
Conformance mark Not yet
This feed is close to the conformance mark. 1 validator error to resolve.
- Valid Not yet
- 1 validator error to resolve.
- Current Met
- Service data covers the next 59 days.
- Accessible Met
- States wheelchair access on 100% of stops and 100% of trips.
In plain words: earn this mark when your feed passes validation, has not expired, and says whether nearly every stop and trip is wheelchair accessible.
A pass credential for a feed that is valid, current, and states wheelchair access on nearly every stop and trip. Accessibility here measures what the feed publishes, not whether a stop is physically usable. How the conformance mark works.
Clears the Google and Apple Maps four-week coverage bar. This feed has 59 days of service ahead, clearing the four-week (28-day) window Maps asks for. The feed also carries 96894 validator errors, the other thing Maps checks at onboarding; the findings below name each fix.
How this agency maps to the standards
The scorecard is a data-quality lens, not a compliance determination. Its universal references describe good GTFS and useful rider information. Useful references here are GTFS Schedule Best Practices, GTFS-Realtime Best Practices, MobilityData grading scheme, Google Transit publication guidance, FTA National Transit Database GTFS requirement. Read the full standards crosswalk.
- Correctness 26 / 100
- GTFS Schedule best practices, checked by the MobilityData validator. MobilityData grading covers stop locations, route names, and colors. Google Transit requires a feed to pass validation for publication. FTA NTD readiness also checks that the published feed is valid.
- Freshness 83 / 100
- GTFS Schedule best practices call for a dataset that stays current. An expired calendar can remove service from Google Transit and other rider trip planners. FTA NTD readiness also checks that the published feed is current.
- Rider experience 62 / 100
- GTFS Best Practices for rider-facing fields. MobilityData grading covers stop names and headsigns.
- Realtime quality Not yet published
- GTFS-Realtime best practices: a stable URL, high uptime, and frequent updates.
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Cite this record
This page updates on every check. The record below does not: it is the dated file this grade came from, published at https://gtfsscorecard.org/data/artifacts/chicago-transit-authority-cta/2026-08-02.json and never overwritten, pinning the grade, category scores, rubric version, validator version, reader archive profile, and the scored feed's sha256 as they stood on 2026-08-02. Use it in a board packet, a regulatory filing, or a research citation instead of linking the live page, whose content will differ on your next visit.
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