The MTA will be partially closing the A, C and E subway lines overnight again this week.

Starting Monday for four consecutive nights from 10:00 p.m. to 5:00 a.m., the MTA's Fastrack returns so the MTA can do work on the line from 59 St-Columbus Circle to Jay St-MetroTech and World Trade Center corridor. The lines will be partially closed during this time and the agency warned that riders can expect to add 20 minutes to the usual travel time.

The MTA describes Fastrack as a new approach to performing inspection and maintenance of subways, saying the program allows the agency to make upgrades in less time at less cost.

Here are the details:

A train: No service between 59 St-Columbus Circle and Jay St-MetroTech A trains run via the D line and F line between 59 St-Columbus Circle and Jay St-MetroTech:

• Via the D line between 59 St-Columbus Circle and 47-50 Sts.
• Via the F line between 47-50 Sts and Jay St-MetroTech.

C train: Service to Manhattan runs until 9:30 p.m. Brooklyn-bound service runs until 10 p.m.

E Train: No service between 7 Av/53 St and World Trade Center E trains are rerouted to the F train in Manhattan:

• Trains run via the F train between 5 Av/53 St and 2 Av.
• The 2 Av F station is the Manhattan terminal for E trains to/from Queens.
• No trains between World Trade Center and W 4 St.

For information on how to get around, details on the FASTRACK program or their new late night MAP - please visit the MTA website. 

Fastrack was used on the A, C and E lines last month.