The FASTRACK maintenance program completely suspends train service over a segment of a subway line to give workers uninterrupted access to tracks, signals, cables, lighting, third rail components and platform edges.
This week, work is being done on the E, F, M and R lines.
From 10 p.m. until 5 a.m., E trains will be suspended between Roosevelt Avenue and the World Trade Center. F trains won't run in Queens between Roosevelt Avenue and 21 st Street.
M line icon service ends early between 71st Avenue and Essex Street, while R line icon service ends early between 71st Avenue and Whitehall Street.
For a complete list of changes and for alternative routes please visit: MTA.info