Overview

• Service began Sunday night, adding roughly one extra hour on Fridays and Saturdays to every subway line plus SL1, SL3, SL5 and bus routes 1, 22, 39, 66 and 110.
• Five bus routes now run about an hour later every night: 23 (Ashmont–Ruggles), 28 (Mattapan–Ruggles), 57 (Watertown–Kenmore), 111 (Woodlawn–Haymarket) and 116 (Wonderland–Maverick).
• Final trips typically shift from just after midnight toward close to 2 a.m., varying by mode and line.
• The late-night expansion is part of the fall seasonal schedule rather than a pilot, with MBTA leadership emphasizing accessibility over raw ridership as the key measure.
• To encourage use, rides after 9 p.m. will be free on five Fridays and Saturdays starting Sept. 5, and daytime frequencies increase on the Red, Orange and Blue lines plus eight bus routes by 10% to 20%.