Timetable Test

Long wait · Chicago · Sat Oct 10

21 min with no Orange Line train

At LaSalle/Van Buren, toward Adams/Wabash, between 7:05 pm and 7:26 pm. The schedule called for a train every 10 min.

Line
Orange Line
Station
LaSalle/Van Buren (station 40160)
Direction
toward Adams/Wabash
Train before
run 719, passed 7:05:38 pm
Train after
run 713, passed 7:26:39 pm
Gap
21 min (1261 s)
Scheduled gap
10 min
Collector
running the whole time

Scheduled against seen

Each tick is a train at LaSalle/Van Buren toward Adams/Wabash. The two runs either side of the gap are labeled.

ScheduledSeen7197136:30 pm6:45 pm7:00 pm7:15 pm7:30 pm7:45 pm8:00 pm21 min gap

What Train Tracker said

Train Tracker reports each train's next stop. A train has passed LaSalle/Van Buren when its next stop moves past it.

SnapshotRun 719 (before)Run 713 (after)
7:04:08 pmnext stop Harold Washington Library-State/Van Burennext stop Kedzie (Orange)
7:05:08 pmnext stop LaSalle/Van Burennext stop Western (Orange)
7:06:08 pmnext stop Harold Washington Library-State/Van Burennext stop Western (Orange)
7:07:08 pmnext stop LaSalle/Van Burennext stop 35th/Archer
7:08:08 pmnext stop Quincynext stop 35th/Archer
7:09:08 pmnext stop Washington/Wellsnext stop 35th/Archer
7:10:08 pmnext stop Clark/Lakenext stop 35th/Archer
7:11:08 pmnext stop Clark/Lakenext stop Ashland (Orange)
7:12:08 pmnext stop Washington/Wabashnext stop Ashland (Orange)
7:13:08 pmnext stop Washington/Wabashnext stop Halsted (Orange)
7:14:08 pmnext stop Adams/Wabashnext stop Halsted (Orange)
7:15:09 pmnext stop Rooseveltnext stop Roosevelt
7:16:09 pmnext stop Rooseveltnext stop Roosevelt
7:17:09 pmnext stop Rooseveltnext stop Roosevelt
7:18:09 pmnext stop Halsted (Orange)next stop Roosevelt
7:19:09 pmnext stop Halsted (Orange)next stop Roosevelt

Showing 16 of 25 snapshots in the gap. The full record, every train on the line minute by minute, is in 2026-10-10-orange-gap-69999.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.