Amtrak signal glitches slow down Boston's rail system

BOSTON (AP) — A malfunctioning signal outside the city's busiest commuter hub triggered massive delays for rail passengers on Thursday, and the problems were expected to continue into the Friday morning commute.

The Massachusetts Bay Transportation Authority and commuter rail operator Keolis Commuter Services will have workers at key stations to help guide passengers.

A spokeswoman for Keolis, which operates the 394-mile commuter rail network under a contract with the MBTA, apologized to passengers while noting the problem was with equipment operated by Amtrak.

Amtrak spokesman Michael Tolbert said the railroad had not been able to pinpoint the cause of the malfunction in the signal, which he described as a switching control that guides trains to the 13 sets of tracks at the station.