Sound Transit

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. Remove retired stops from the export, or add them back to the trips that should serve them.

   Some stops exist in the feed but no trip ever stops at them. Riders may walk to a stop where no bus is scheduled to arrive.

   Estimated effort: A review pass in your scheduling software.

   Agencies here usually clear this within about 1 week (based on 11 observed fixes).

2. Remove past service periods the next time you export the feed.

   Some service calendars in the feed have already expired. Expired calendars are dead weight and can hide real schedule problems from your staff and vendors.

   Estimated effort: One setting in most export tools.

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

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

   Equal shape distance same coordinates (flagged by the MobilityData validator). See the linked rule for what this affects.

   Estimated effort: Varies.

Where this agency stands

Ahead of 89% of all tracked agencies, and ahead of 88% of mid-size agencies nationwide.