BOSTON —

Service suspension on a major section of the Green Line will begin Monday, Dec. 8, as the MBTA works to repair over a century-old catenary wire in the line's tunnel.

The suspension will be between North Station and Babcock Street on the B Branch,  Kenmore on the C and D Branches, and Heath Street on the E Branch from Dec. 8 until Dec. 22.

Green Line service will operate between North Station and Union Square and Medford/Tufts during the suspension.

The MBTA will also work to install the Green Line Train Protection System, which the agency says will help avoid collisions and incorporate speed enforcement.

Riders say they're expecting long commutes.

"It’s like every time you turn around, there’s something wrong. Either the signals or it’s they’re fixing something that they t

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