YEARS. HE’S HERE NOW WITH THE NEW QUESTIONS BEING RAISED. MIKE MARIA THE NTSB FIRST RECOMMENDED THAT THE MBTA INSTALL A SYSTEM THAT PREVENTS COLLISIONS ON THE GREEN LINE. NEARLY 20 YEARS AGO, AFTER ...

Federal regulators first recommended an anti-collision system for the MBTA's Green Line in 2009 but Sunday's crash between two trolleys at East Somerville Station is a reminder that the system is ...

Difficulty with installing sophisticated technology into an old Green Line fleet has delayed the anticipated completion date for much-needed train-collision prevention equipment by 18 months. MBTA ...

Several maintenance and improvement projects, including a long-awaited Green Line safety system, will disrupt MBTA services during parts of September. The Green Line D Branch will be suspended between ...

Piper is currently deploying the Green Line Train Protection System for the MBTA in Boston. The system includes three critical safety deliverables, including: collision avoidance for Green Line trains ...