Chatham Area Transit (CAT)

Top things to fix

Score by category

Over time

Overall score across the last 20 checks — unchanged since 2026-07-08.

What changed since your last check

• Correctness— no change
• Freshness— no change
• Rider experience— no change

What changed in this feed

Overall grade and score held steady since 2026-07-08.

Same feed file as 2026-07-08; 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

• Error1154 instances

  Point near origin (flagged by the MobilityData validator).

  See the linked rule for what this affects.

  Fix: Review the rule documentation for 'point_near_origin' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed. (Varies.)

  Validator rule: point_near_origin · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

• Error21 instances

  Some trips have stop times whose distances along the route go backwards.

  Apps can show buses jumping backwards or mis-order stops.

  Fix: Re-generate shape distances in your export; flag to your vendor if it persists. (Usually an export-tool fix, not hand editing.)

  Validator rule: decreasing_or_equal_stop_time_distance · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

• Error2 instances

  Number out of range (flagged by the MobilityData validator).

  See the linked rule for what this affects.

  Fix: Review the rule documentation for 'number_out_of_range' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed. (Varies.)

  Validator rule: number_out_of_range · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

• Error1 instance

  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.)

  Validator rule: equal_shape_distance_diff_coordinates · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

• Error1 instance

  Service data ended 1705 day(s) ago.

  When the calendar runs out, trip planners stop showing this agency even though the buses are still running. Riders are told the service does not exist.

  Fix: Re-export the feed with a calendar that reaches further out, and set feed_info feed_end_date past your next service change. (Usually one export setting; export on a schedule so it never lapses again.)

  Agencies here usually clear this within about 1 week (based on 18 observed fixes).

  Validator rule: scorecard_feed_expired · Read the fix guide · See GTFS Best Practices (opens GTFS Best Practices on an external site)

• Warning3621 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.)

  Validator rule: mixed_case_recommended_field · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

• Warning3033 instances

  3033 of 3033 trips don't say whether the vehicle is wheelchair accessible.

  Even with accessible stops, riders need to know the bus itself can take them.

  Fix: Set wheelchair_accessible on every trip (most small-agency fleets are 100% accessible, so this is often a single default). (Often one default setting in your export.)

  Agencies here usually clear this within about 1 week (based on 5 observed fixes).

  Validator rule: scorecard_wheelchair_accessible_unknown · Read the fix guide · See GTFS Schedule reference (opens the GTFS Schedule reference on an external site)

• Warning1252 instances

  1252 of 1252 stops don't say whether a wheelchair user can board there.

  Riders who use wheelchairs can't plan a trip when accessibility is marked 'unknown'; apps show no information at all.

  Fix: Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops. (A column in stops.txt; your scheduling software likely has it.)

  Validator rule: scorecard_wheelchair_boarding_unknown · Read the fix guide · See GTFS Schedule reference (opens the GTFS Schedule reference on an external site)

• Warning347 instances

  347 of 3033 trips have no headsign.

  Riders at the stop can't tell which direction a bus is going.

  Fix: Populate trip_headsign to match what the bus displays. (Usually a bulk edit in your scheduling software.)

  Validator rule: scorecard_missing_headsigns · Read the fix guide · See GTFS Best Practices (opens GTFS Best Practices on an external site)

• Warning8 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.)

  Validator rule: equal_shape_distance_diff_coordinates_distance_below_threshold · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

• Warning4 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.)

  Agencies here usually clear this within about 1 week (based on 61 observed fixes).

  Validator rule: expired_calendar · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

• Warning3 instances

  Some service calendars have no days of the week switched on.

  Trips tied to these calendars never run; they are dead data that can mask real schedule problems.

  Fix: Delete the empty calendars or set their service days. (A few minutes in your scheduling software.)

  Validator rule: service_has_no_active_day_of_the_week · Read the fix guide · 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.)

  Agencies here usually clear this within about 1 week (based on 13 observed fixes).

  Validator rule: missing_recommended_file · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

• Warning1 instance

  Many of the feed's trips don't run at all in the next 7 days.

  It usually means old service periods are still in the export, making the feed bigger and harder to check.

  Fix: Trim past service periods the next time you export. (One setting in most export tools.)

  Agencies here usually clear this within about 1 week (based on 31 observed fixes).

  Validator rule: trip_coverage_not_active_for_next7_days · 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.)

  Agencies here usually clear this within about 1 week (based on 16 observed fixes).

  Validator rule: 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.)

  Validator rule: scorecard_no_fare_data · Read the fix guide · See GTFS Best Practices (opens GTFS Best Practices on an external site)

• Info1071 instances

  About 1071 stop names are written in ALL CAPS.

  Mixed-case names are easier to read in apps and are read more naturally by screen readers.

  Fix: Rename stops to mixed case (e.g. 'Main St & 2nd Ave'). (Often a bulk fix in your scheduling software.)

  Validator rule: scorecard_stop_names_all_caps · Read the fix guide · See GTFS Best Practices (opens GTFS Best Practices on an external site)

• Info1 instance

  Unknown file (flagged by the MobilityData validator).

  See the linked rule for what this affects.

  Fix: Review the rule documentation for 'unknown_file' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed. (Varies.)

  Agencies here usually clear this within about 1 week (based on 6 observed fixes).

  Validator rule: 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).

  App makers and state data programs 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.)

  Agencies here usually clear this within about 1 week (based on 10 observed fixes).

  Validator rule: scorecard_no_feed_contact · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

Beyond the grade

Opportunities that do not change your grade today: fare detail, on-demand service, and deeper accessibility data.

• 2 route badge(s) pair a color and text color below the WCAG 4.5:1 contrast bar (27, 6).

  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.

• 1215 stop name(s) use abbreviations or symbols a screen reader may mispronounce, with no spoken form set ("YORK & ABERCORN EB", "ABERCORN & MACON SB", "ABERCORN & HENRY SB", and more).

  Consider: Add tts_stop_name with the spoken form, e.g. 'Main Street and Second Avenue', for the affected stops.

Some fixes we can make for you

These are the safe mechanical fixes, applied to a copy of your feed. They change only what is certain and leave everything else untouched. Review the diff before you publish.

• Recased shouting stop names 1071 changes

  For example: YORK & ABERCORN EB -> York & Abercorn Eb

• Recased shouting route names 18 changes

  For example: EAST SAVANNAH -> East Savannah

Download corrected feed