Starting on Aug. 24, the changes will include more frequent Red and Orange line trains, especially during peak weekday times.

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

TThe MBTA's Orange Line will be closed between Wellington and Back Bay stations from Aug. 2-3, 9-10 and 23-24. Free shuttles ...

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

The 50- to 60-year-old steel cable probably “weakened until the point where it came down” after decades in a damp, subterranean tunnel, said Phillip Eng, the MBTA general manager.

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

The changes to service in August will impact the Blue, Orange, Lowell, and Fitchburg lines, the MBTA announced.

Planned work on the Blue Line will see a large portion of the track closed for nine days in August, according to the latest workplan from the MBTA.

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

It took firefighters approx. 1 hr to evacuate 500 people from a ⁦ @MBTA ⁩ Blue Line train that was disabled under the harbor between Maverick & Aquarium station. They used the Nolan cart to transport ...

A decades-old cable that fell in the MBTA Blue Line tunnel in Boston, which caused a signal problem, prompted a massive evacuation inside the tunnel under Boston Harbor on Tuesday, MBTA General ...