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 No 1 line.
From 10 p.m. until 5 a.m., all service will be suspended between 96th Street and Dyckman Street.
For a complete list of changes and for alternative routes please visit: MTA.info