BOSTON (WBZ NewsRadio) — It's full speed ahead for Green Line E Branch maintenance, as work began on portions of the track on Saturday and will carry through most of August.
From August 6 through Sunday, August 21, the Massachusetts Bay Transportation Authority replaced regular E Branch service with Route 39 bus service between Heath Street and Copley stations.
Officials say that during the closure, crews will work to replace the existing track between Longwood Avenue and Brigham Circle, and install Green Line Train Protection System equipment, which prevents train-on-train collisions and implements speed enforcement.
According to the MBTA, the GLTPS transmits data to the train as it commutes down the tracks, and can automatically stop a train if another vehicle is detected and recognize red light signals ahead.
MBTA officials say some of the Green Line's tracks are over three decades old and have reached the end of their service life.