MBTA investigating 'possible human factors'

Dozens of MBTA passengers were forced to walk their way out of a Green Line tunnel as part of their evening commute on ...
According to the MBTA, a green line trolley at Park Street rolled back and hitched to another green line trolley behind ...
A Massachusetts Bay Transportation Authority Green Line train was speeding and passed a red signal before colliding with a ...
The Green Line trolley that smashed into an out-of-service train, derailing both, in Somerville a month ago was going faster ...