Starting at 9:45 p.m., no G trains will run in either direction for the next week between Court Square and Nassau Avenue. In the meantime, free B94 shuttle buses will be running between those stops.
Trains will still be running between Nassau Avenue and Church Avenue at all times.
These changes will last until 9:45 p.m. on July 5.
The project will happen in three phases. The entire project to modernize track signals along the G train line is expected to be complete in early September.
According to the MTA, about 160,000 commuters ride the G train each day.
MTA officials say the signals on the train date back to when the line originally opened in the 1930s and they are a frequent source of service disruptions and delays.
You can read more about the service changes on the MTA's website.
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