The person was run over inside the 137th Street station in Hamilton Heights, the FDNY said.
LIRR trains were delayed 20 to 30 minutes and NJ Transit was delayed by up to an hour.
The MTA's Cold Weather Plan was in effect Tuesday morning, bringing service changes to several lines.
Service on the F, R, M and E lines were disrupted Tuesday evening.
The MTA was running fewer trains with local service, the MTA said.
After a fire thwarted early morning travelers on the commuter train, the LIRR is back on track.
1 trains resumed operation, with delays, after being suspended between South Ferry and Times Square.
NJ Transit commuters faced delays of up to 30 minutes Wednesday morning.
Crews were working to repair the rail at 59th Street, an MTA spokesman said.
An Amtrak power outage stalled their own trains and New Jersey Transit lines, officials said.
A broken rail caused major delays Thursday at about 5 p.m.
A freight train derailed in Jamaica Wednesday afternoon.
The F had more than 300 delay alerts in 2013, more than any other line, a transit advocacy group said.
The LIRR and New Jersey Transit both reported disruptions after a wire fell in Penn Station.
Normal service was restored to subway lines that experienced delays Monday morning.
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