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Board packet · transit data quality · checked 2026-10-07

Roosevelt Island Operating Corporation Tramway (RIOC Tramway)

Grade A · 92.9 / 100

Unchanged since 2026-10-06.

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. 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.

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

    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: Varies.

  2. Add feed_contact_email or feed_contact_url to feed_info.txt.

    feed_info.txt lists no contact email and no contact URL. Without a contact, apps like Google Maps can't reach you when they find a problem in the feed.

    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 field, set once in export settings.

  3. Add feed_contact_email to feed_info.txt.

    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. Small errors then sit in the feed for months.

    This one is about the feed as a whole, so there is no share of it to count.

    Estimated effort: One field.

Riders and need behind these fixes

  • This feed carries no National Transit Database ID, so annual rider-trips are not known for it.
  • New York as a whole measures moderate on transit need. That is a statewide reading, not one for this feed's service area. Source: US Census ACS 5-year 2022, statewide overlay, as of 2026-10-05.

These describe this feed only. They do not rank agencies, and they do not change the grade or the order of the fixes.

Finding handoff

Move one finding to a recheck

Select one finding. Copy the request, make the change in the feed-producing tool, then compare the next complete run.

Feed evidence
Equal shape distance diff coordinates distance below threshold (flagged by the MobilityData validator).
Next action
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.
Recheck
Publish the changed feed at the same URL. On the next complete, comparable scorecard run, confirm that this finding is no longer reported.
Copy handoff text

Produced by the GTFS Scorecard, an open-source data quality tool. A data-quality read to support the board conversation, not an official compliance determination. Live scorecard: https://gtfsscorecard.org/agency/roosevelt-island-operating-corporation-tramway-rioc-tramway/. Rubric v1.4, validator 8.0.1.