GTFS Scorecard: Chicago Transit Authority (CTA) feed quality changes Grade moves, expiry warnings, and score swings for Chicago Transit Authority (CTA)'s GTFS feed. tag:gtfsscorecard.org,2026:agency/chicago-transit-authority-cta/changes 2026-07-01T00:00:00Z GTFS Scorecard GTFS Scorecard Chicago Transit Authority (CTA): Feed entered the expiry window (30 days of service left). tag:gtfsscorecard.org,2026:agency/chicago-transit-authority-cta/2026-07-01/expiry 2026-07-01T00:00:00Z Feed entered the expiry window (30 days of service left).