Timetable Test

Bunched trains · New York · Sat Oct 10

Two A trains 1 min apart

At Grant Av, toward Far Rockaway-Mott Av, between 11:31 pm and 11:32 pm. The schedule called for a train every 12 min.

Line
A train
Station
Grant Av (station A57)
Direction
toward Far Rockaway-Mott Av
Train before
train 1A 2206 207/FAR, passed 11:31:39 pm
Train after
train 1A 2217 207/LEF, passed 11:32:39 pm
Gap
1 min (60 s)
Scheduled gap
12 min
Collector
running the whole time

Scheduled against seen

Each tick is a train at Grant Av toward Far Rockaway-Mott Av. The two trains either side of the bunch are labeled.

ScheduledSeen1A 2206 201A 2217 2011:00 pm11:15 pm11:30 pm11:45 pm12:00 am1 min gap

What the MTA feed said

The MTA feed reports each train's next stop. A train has passed Grant Av when its next stop moves past it.

SnapshotTrain 1A 2206 207/FAR (before)Train 1A 2217 207/LEF (after)
11:30:09 pmnext stop Grant Avnext stop Euclid Av
11:31:09 pmnext stop Grant Avnext stop Euclid Av
11:32:09 pmnext stop 80 Stnext stop Grant Av
11:33:09 pmnext stop 88 Stnext stop 80 St
11:34:09 pmnext stop 88 Stnext stop 80 St

Showing 5 of 5 snapshots in the gap. The full record, every train on the line minute by minute, is in 2026-10-10-a-bunch-84759.json.

Check it yourself

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