MBTA Successfully Completes Work Supporting Testing Phases for New Red Line Digital Signal System and Critical Infrastructure Upgrades During Red Line and Mattapan Line Service Suspensions

The MBTA today announced the successful completion of critical infrastructure improvements accomplished along the Red Line Ashmont branch and Mattapan Line. The service suspension allowed the T to perform testing and commissioning work for the Red Line’s new digital signal system, track and tamping work, and major power infrastructure upgrades.