Sleep apnea, speed cited in NY-area train crashes, NTSB says

The engineers of two commuter trains that slammed into New York City-area stations in the past year — killing one person and injuring more than 200 others — were both suffering from undiagnosed sleep apnea and have no memory of the crashes, according to investigative documents made public Thursday.

Both trains were going more than double the speed limit and crashed at stations that had been exempted from federal regulations requiring automatic speed controls that could have slowed or stopped them.

The National Transportation Safety Board said the common circumstances of the Sept. 29 New Jersey Transit crash in Hoboken, N.J., and the Jan.