South Shore Line

What this grade measures

The quality of the schedule data this agency publishes for trip-planning apps: whether riders using Google Maps, Apple Maps, or Transit see current, correct, and complete information. It measures the data feed, not service quality or operations.

Progress this period

No newly cleared items this period. The score and trend above reflect where the feed stands today.

What needs attention next

Three improvements, in priority order, each sized so the board can see what it is approving:

1. Check with your AVL vendor that every vehicle assignment flows into TripUpdates, including school-day and tripper runs.

   6 of 6 trips scheduled during the sampling window had no live predictions. Riders on those trips get schedule data dressed up as realtime. Caltrans expects every operating trip in TripUpdates.

   Estimated effort: A vendor data-mapping question.

   Agencies here usually clear this within about 1 week (based on 84 observed fixes).

2. Review the rule documentation for 'route_long_name_contains_short_name' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.

   Route long name contains short name (flagged by the MobilityData validator). See the linked rule for what this affects.

   Estimated effort: Varies.

3. Review the rule documentation for 'service_extends_far_in_the_future' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.

   Service extends far in the future (flagged by the MobilityData validator). See the linked rule for what this affects.

   Estimated effort: Varies.

Where this agency stands

Ahead of 97% of all tracked agencies, and ahead of 95% of small agencies nationwide.