| LINE | Full Run | Part Ridden | Part Not Ridden | Comments | |
|---|---|---|---|---|---|
 | A | Alewife-Ashmont | All | None | |
| B | Alewife-Braintree | All | None | ||
| M | Ashmont-Matappan | All | None | Trolley | |
 | B | Boston College-Government Center | All | None | Trolley |
| C | Cleveland Circle-Government Center | All | None | Trolley | |
| D | Riverside-Somerville | All | None | Trolley | |
| E | Heath Street-Medford/Tufts | All | None | Trolley | |
 | Bowdoin-Wonderland | All | None | ||
 | Forest Hills-Oak Grove | All | None | ||