The massive slow zones are eating into the limited 2 hour window that the MBTA uses for maintainance.
Last train to Braintree is supposed to arrive at Quincy Adams by 1:14 a.m.
We're seeing the last train not arriving at Quincy Adams until 1:53 a.m.
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Last Riverside Train is supposed to arrive at Woodland at 1:30 a.m. Instead, it takes until 2:04 a.m. to reach Woodland.
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The slow zones are costing the MBTA 40 minutes of their overnight maintainance windows, due to the last trains scheduled to leave the origin terminal at 12:30 a.m., that would normally arrive at their final terminals by 1:30 a.m., are now taking until just after 2:00 a.m. to do so under their slow zones.
MBTA might want to consider updating their schedules for last trains to reflect the longer travel time needed to reach their terminals by the originally scheduled 1:30 a.m. times. If the last train leaving at 12:30 a.m. to arrive at 1:30 a.m. is 40 minutes longer, 2:10 a.m., with slow zones. The schedule would need to be updated to require the last train of the night to depart 40 minutes earlier, at 11:50 p.m. instead, under the slow zones, in order to make the original 1:30 a.m. time without slow zones.
The alternative option is reduced and limited maintainance windows for track maintainance.
What should the MBTA actually do in this situation?