Amtrak said limited train service between Philadelphia and New York should resume on Monday, with full service by Tuesday.
Amtrak has had to modify Northeast Corridor service because of the deadly derailment in Philadelphia.
An Amtrak train headed to New York City crashed in Philadelphia on Tuesday night, killing at least 6 people.
A Green Line trolley derailed just outside Kenmore Square.
The driver in the derailment of a Green Line trolley Monday has been fired, a source told WBZ-TV Friday.
Investigators are taking a close look at performance of the trolley driver who has a lengthy driving record.
The MBTA says human error is to blame for the Green Line crash. Two passengers and a trolley operator say they have back and neck pain.