Frederick County 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

Since the previous check, 2 data issues were fixed and verified:

• 4 of 13 trips scheduled during the sampling window had no live predictions.
• Some live predictions disagree with the schedule by more than 30 minutes.

What needs attention next

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

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

   Stop time with arrival before previous departure time (flagged by the MobilityData validator). See the linked rule for what this affects.

   Estimated effort: Varies.

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

   Block trips with overlapping stop times (flagged by the MobilityData validator). See the linked rule for what this affects.

   Estimated effort: Varies.

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

3. Check the service alerts endpoint with your AVL vendor; it should return a fresh GTFS-Realtime protobuf on every request.

   The service alerts realtime feed failed during sampling. When this feed is down, riders see scheduled times presented as if they were live.

   Estimated effort: Usually a vendor support ticket.

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

This feed is generated by your Passio system from the route and stop data they maintain. Send the fix list to your Passio contact.

Where this agency stands

Ahead of 48% of all tracked agencies, and ahead of 46% of mid-size agencies nationwide.