From 11:45 p.m. Friday, January 31 to 5:00 a.m. and Monday, February 3, Coney Island-bound F trains skip 4 Av-9 St, 15 St-Prospect Park, and Fort Hamilton Pkwy due to signal work at Church Av. For service to these stations take a Coney Island-bound F train to 7 Av or Church Av and transfer to a Queens-bound F or G train. From these stations, take a Queens-bound F or G to 7 Av or Smith-9 Sts and transfer to a Coney Island-bound F.
From 5:00 a.m. to 12:00 midnight Saturday, February 1, and Sunday, February 2, G trains run every 20 minutes between Court Sq and Bedford-Nostrand Avs, due to Fix and Fortify Sandy Recovery Work in the Greenpoint Tube. The last stop for some trains headed towards Court Sq is Bedford-Nostrand Avs. To continue your trip, transfer at Bedford-Nostrand Avs to a Court Sq-bound G train.
And the big picture: