Sound Transit

What this grade measures

The quality of the schedule data in the feed scored here 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. Re-generate shape_dist_traveled on export so stop and shape distances use the same units.

   On some trips the stop distances run a little past the end of the route line. The stop and shape distance values don't quite line up, so any math that uses them can drift.

   This is a validator notice, and the validator decides what each instance covers, so no share of the network can be read from it here.

   Estimated effort: Usually an export-tool fix, not hand editing.

2. 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 transit vehicle is scheduled to arrive.

   This is a validator notice, and the validator decides what each instance covers, so no share of the network can be read from it here.

   Estimated effort: A review pass in your scheduling software.

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

   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.

   This is a validator notice, and the validator decides what each instance covers, so no share of the network can be read from it here.

   Estimated effort: One setting in most export tools.