Planned maintenance will shut down one MBTA line for nine straight days and part of another for three weekends.

The scheduled maintenance will add upwards of half-an-hour to commutes when the section of the Blue Line running between Airport Station and Wonderland is replaced by shuttle service.

The head of the MBTA said more problems were uncovered during an investigation into a Blue Line train evacuation​ that happened on Tuesday.

More than 450 MBTA passengers were evacuated from a Blue Line train in the tunnel under the Boston Harbor due to a signal issue Tuesday afternoon.

The MBTA held its first board of directors meeting since nearly 500 passengers were evacuated from a Blue Line train after it ...

Hundreds of passengers aboard the Blue Line were evacuated Tuesday afternoon after a train became stuck beneath the Boston Harbor, between the Maverick and Aquarium stations, officials said. Over the ...

Hundreds of passengers were evacuated from a Blue Line train that became stuck in a tunnel between Aquarium and Maverick ...

The 50- to 60-year-old steel cable probably “weakened until the point where it came down” after decades in a damp, ...

The mishap on the Blue Line treated more than 460 train passengers to an unwelcome walking tour of Boston’s tunnel system.

Shuttle buses are replacing a portion of the Blue Line due to a signal issue at the Aquarium station, the MBTA said Tuesday.

A signal problem at an MBTA station in Boston halted Blue Line services on Tuesday, prompting shuttle buses to be used to replace train services.

Boston firefighters evacuated 500 people aboard an MBTA train stranded under Boston Harbor due to a signal problem at one of the stations on Tuesday.