As 2024 crept to a close, the MBTA completed a monumental year of maintenance and declared its train network free of speed restrictions for the first time in more than two decades.
With that, the T quietly stopped reporting new slow zones to the public. Its speed restrictions dashboard, which once mapped scores of such zones across the transit network, has not been updated since Dec. 22.
But that didn’t mean the slow zones — areas where track conditions prevented trains from running at full pace — disappeared…