This weekend, the service disruptions on the F and G trains will be the same as last weekend: from Friday, November 19th, at 11:30 p.m. through Monday, November 22nd, at 5:00 a.m., the F won't run between Jay Street and Church Avenue, and the G won't run between Hoyt-Schermerhorn Streets and Church Avenue.
Instead, free shuttle buses will travel from Jay Street to Church Avenue and back, making stops at Bergen Street, Carroll Street, Smith-9th Streets, 4th Avenue, 7th Avenue, 15th Street, and Fort Hamilton Parkway.
WARNING: last weekend, the bus didn't stop at either end of the Fort Hamilton Parkway station--it stopped at Prospect Park Southwest by Greenwood Avenue.
The F will run its normal route between 179th Street and Jay Street and then be rerouted along the A local line to Euclid Avenue. It will also run its normal route between Church Avenue and Coney Island.
On the G train going toward Church Avenue, transfer between the G and A trains at Hoyt-Schermerhorn Streets. Take a Manhattan-bound A train to Jay Street and transfer to the shuttle bus.
On the G train going toward Court Square, transfer between the shuttle bus and the A train at Jay Street. Take a Lefferts Boulevard/Far Rockaway-bound A train to Hoyt-Schermerhorn Streets where Court Square-bound G service is available.