She said air quality monitors were placed in the Red Line tunnel before work began. “The team is working to address the air quality issues within the tunnel in order to optimize the construction ...

1 to Aug. 4 and from Aug. 8 to Aug. 11. These shuttle bus diversions on the Red Line will allow construction crews to expedite maintenance work, the MBTA said. Work done on the Red Line during the ...

Although the Orange Line went through 30 days of track repairs last year, it is still experiencing problems, according to the Globe’s data ... track maintenance work continues during overnight ...