Over the next four weekends, Oct. 12-13, 19-20, 26-27, and Nov. 2-3, crews will perform tests of signals in Harold Interlocking, the complex of switches in Sunnyside, Queens, where LIRR trains bound for Grand Central will separate from its trains to Penn Station, and where eastbound trains from those two terminals will merge onto the Main Line for travel to Long Island.
As a result of these signal tests, trains will operate hourly on the Port Washington Branch instead of every 30 minutes during these four weekends.