Timetable Test

Long wait · Chicago · Sat Oct 10

22 min with no Orange Line train

At Halsted (Orange), toward Midway, between 7:21 pm and 7:43 pm. The schedule called for a train every 10 min.

Line
Orange Line
Station
Halsted (Orange) (station 41130)
Direction
toward Midway
Train before
run 719, passed 7:21:39 pm
Train after
run 713, passed 7:43:39 pm
Gap
22 min (1320 s)
Scheduled gap
10 min
Collector
running the whole time

Scheduled against seen

Each tick is a train at Halsted (Orange) toward Midway. The two runs either side of the gap are labeled.

ScheduledSeen7197136:45 pm7:00 pm7:15 pm7:30 pm7:45 pm8:00 pm8:15 pm22 min gap

What Train Tracker said

Train Tracker reports each train's next stop. A train has passed Halsted (Orange) when its next stop moves past it.

SnapshotRun 719 (before)Run 713 (after)
7:20:09 pmnext stop Halsted (Orange)next stop Roosevelt
7:21:09 pmnext stop Halsted (Orange)next stop Roosevelt
7:22:09 pmnext stop Ashland (Orange)next stop Harold Washington Library-State/Van Buren
7:23:09 pmnext stop Ashland (Orange)next stop Harold Washington Library-State/Van Buren
7:24:09 pmnext stop Ashland (Orange)next stop LaSalle/Van Buren
7:25:09 pmnext stop 35th/Archernext stop LaSalle/Van Buren
7:26:09 pmnext stop 35th/Archernext stop LaSalle/Van Buren
7:27:09 pmnext stop Western (Orange)next stop Quincy
7:28:09 pmnext stop Western (Orange)next stop Washington/Wells
7:29:09 pmnext stop Western (Orange)next stop Clark/Lake
7:30:09 pmnext stop Western (Orange)next stop Clark/Lake
7:31:09 pmnext stop Western (Orange)next stop Clark/Lake
7:32:09 pmnext stop Kedzie (Orange)next stop Washington/Wabash
7:33:09 pmnext stop Kedzie (Orange)next stop Washington/Wabash
7:34:09 pmnext stop Pulaski (Orange)next stop Adams/Wabash
7:35:09 pmnext stop Pulaski (Orange)next stop Roosevelt

Showing 16 of 26 snapshots in the gap. The full record, every train on the line minute by minute, is in 2026-10-10-orange-gap-71019.json.

Check it yourself

Scheduled times come from CTA's GTFS schedule for Sat Oct 10. Positions come from Train Tracker, polled once a minute. The raw records above are exactly what CTA's servers returned. How the numbers are worked out.