Timetable Test

Long wait · New York · Sat Oct 10

41 min with no 4 train

At 149 St-Hostos, toward Woodlawn, between 12:50 am and 1:31 am. The schedule called for a train every 19 min.

Line
4 train
Station
149 St-Hostos (station 415)
Direction
toward Woodlawn
Train before
train 04 2344+ NLT/WDL, passed 12:50:39 am
Train after
train 04 0008+ NLT/WDL, passed 1:31:39 am
Gap
41 min (2460 s)
Scheduled gap
19 min
Collector
running the whole time

Scheduled against seen

Each tick is a train at 149 St-Hostos toward Woodlawn. The two trains either side of the gap are labeled.

ScheduledSeen04 2344+ N04 0008+ N12:15 am12:30 am12:45 am1:00 am1:15 am1:30 am1:45 am2:00 am41 min gap

What the MTA feed said

The MTA feed reports each train's next stop. A train has passed 149 St-Hostos when its next stop moves past it.

SnapshotTrain 04 2344+ NLT/WDL (before)Train 04 0008+ NLT/WDL (after)
12:49:09 amnext stop 149 St-Hostosnext stop Brooklyn Bridge-City Hall
12:52:09 amnext stop 161 St-Yankee Stadiumnext stop 14 St-Union Sq
12:55:09 amnext stop 161 St-Yankee Stadiumnext stop Grand Central-42 St
12:58:09 amnext stop 170 Stnext stop Grand Central-42 St
1:01:09 amnext stop 176 Stnext stop 51 St
1:04:09 amnext stop 183 Stnext stop 59 St
1:07:09 amnext stop Kingsbridge Rdnext stop 77 St
1:10:09 amnext stop Mosholu Pkwynext stop 86 St
1:13:09 amnext stop Woodlawnnext stop 96 St
1:16:09 amnext stop Woodlawnnext stop 103 St
1:19:09 amtrip finishednext stop 110 St
1:22:09 amtrip finishednext stop 125 St
1:25:09 amtrip finishednext stop 138 St-Grand Concourse
1:28:09 amtrip finishednext stop 138 St-Grand Concourse
1:31:09 amtrip finishednext stop 149 St-Hostos

Showing 15 of 45 snapshots in the gap. The full record, every train on the line minute by minute, is in 2026-10-10-4-gap-91899.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.