The Metropolitan Transportation Authority's "Fastrack" maintenance program begins Monday on the N, Q, and R subway lines.
N and Q service will be suspended at all Manhattan stations along the lines for the next four nights.
The N train will operate in Queens and Brooklyn only.
The Q will run in Brooklyn and along the 6th Avenue line in Manhattan.
R service ends early in Manhattan, Queens and in Brooklyn between 36th Street and Court Street.
The disruptions run from 10 p.m. to 5 a.m.
For more information, visit mta.info.