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Service changes are taking place in December to support Orange Line signal modernization and the replacement of overhead wire troughs on the Green Line.

The MBTA today announced service changes in December on the Orange and Green lines.

Riders can find more information on service changes through in-station signage, in-station public announcements, and at mbta.com/PlannedWork. Transit Ambassadors and MBTA staff will be available on-site to offer information and assistance during these service changes. Riders are encouraged to subscribe to T-Alerts or to follow the MBTA on X @MBTA, @MBTA_CR, and @MBTA_CR_Alerts for up-to-date service information.

On the Orange Line

The MBTA will continue signal upgrade and modernization work on the Orange Line in December. By upgrading and modernizing its signals, the MBTA will significantly increase operational efficiency and improve scheduling reliability for riders. The MBTA will also maximize access to closed stations by performing cleaning, signage replacement, plumbing repairs and pump room work, and window replacement throughout the shutdown area as well as preparations for column work at Mass. Ave.

To accomplish this work, the following service suspensions will take place:

Orange Line service will be suspended between Back Bay and Forest Hills all day on Friday, December 5 , and all day on Saturday, December 6 . Regular Orange Line service will operate on Sunday, December 7.

Free and accessible shuttle buses will make stops between Back Bay and Forest Hills.

Riders are also encouraged to consider the Commuter Rail for fare-free service between Forest Hills, Ruggles, Back Bay, and South Station. The trip between Forest Hills and Back Bay on the Commuter Rail is approximately 10 minutes.

Riders using shuttles bus service should budget ample extra travel time. For example, a rider travelling to Downtown Crossing from Forest Hills should budget at least an additional 30 minutes of travel in addition to their regular commute.

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