IRT Jerome Avenue Line
Service patterns

Service
Time period
Between
Between
Service
Time period
Woodlawn 149 St–GC
North of 138 St–GC North of 125 St
"4" train
Rush hours
local/express
express peak direction only
"4" train
Other times
local
local
"5" train
All except late nights
no service
local
"5" train
Late nights
no service
no service

Question: What do the daily schedules look like for the 4 train and the 5 train?
Answer: The 4 train serves 138th Street at all times except rush hours in the peak direction, and the 5 train serves the 138th Street at all times except late nights.