Signal issue soils MBTA’s plans for first perfect morning commute [Video]

While Gov. Maura Healey and the MBTA prepared to celebrate the milestone removal of all slow zones from the Boston-area subway tracks on Monday, another track-related issue caused delays for some passengers. A reported cracked rail near JFK/UMass was causing delays on the Red Line’s Braintree Branch. MBTA officials previously reported a signal issue but updated that statement to report a cracked rail near Wollaston. As a result, train service operated on a single track between Quincy Center and Braintree and shuttle buses replaced service between JFK/UMass and Quincy Center. “The Track Department is on scene working to resolve the issue,” the MBTA wrote in a statement. After more than a year of track work across the MBTA system, the final long-term speed restrictions were removed when a section of the Green Line reopened on Saturday. Friday was the final day of the closure between Park Street, Union Square and …