A deaf and mute man had no interaction with the suspect before he was attacked, police said.
The 2, 4, 5, 6, 7, A, C, D, E, F, G, N and R lines will all have service changes this holiday weekend.
Police subdued Christopher Brown, 24, after he resisted arrest on an F train, video shows.
The stations will close from Saturday, July 5 until February 2015, the MTA says.
Police are looking for a man they say attacked a woman in the Ralph Avenue subway station.
A woman survived a fall on subway tracks in Midtown, officials said.
The MTA's independent consultant cited " significant schedule risks" in the long-in-the-works project.
Construction will cause changes on the 4, 5, 6, 7, A, C, F, Q and S lines.
A train stations north of 168th Street will be skipped on weekends starting late Friday.
A broken rail caused major delays Thursday at about 5 p.m.
An ad for the spooky show was too "shocking and menacing," a lawsuit charges.
Changes will hit the 1, 2, 4, 5, 6, 7, A, C, E, F, 42nd Street Shuttle and Franklin Avenue Shuttle.
Due to "temporary power loss" systemwide, all subways were briefly running with delays, the MTA said.
The man exposed himself to the girl and a woman on the 5 train, police say.
Brooklyn and Queens riders can expect more trains.
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