Routes Second Avenue Subway

the opening of phase 1 extended q service 96th street former terminal @ 57th street. q service has rush-hour service frequency of 7 10 trains per hour; contrast, irt lexington avenue line s express tracks (4 , ​5 trains) have estimated rush-hour frequency of 30 trains per hour, or 1 train approximately every 2 minutes in each direction. part of 2004 final environmental impact study (feis) line, q service planned have frequency of 14 trains per hour during rush hours, revised due mta schedule changes. few rush hour n trains formerly short-turned @ 57th street began run 96th street on january 3, 2017. northbound n trains labeled q trains via sea beach line in service reduce passenger confusion. starting on november 6, 2017, northbound r trains have served line during weekday mornings, boosting service.

in phase 2, q , limited n service extended 125th street , lexington avenue. part of 2004 feis, planned q service increased 19 trains per hour accommodate projected increase in ridership. in order allow construction of phase 3, bellmouths have been constructed @ turnoff bmt 63rd street line.