Boston Subdivision (O,R)  |
| Concurrent (MBTA) Subdivision (O) |
| Connector (MBTA) Subdivision (O) |
| Fairmount (MBTA) Subdivision (O) |
| Fitchburg (MBTA) Subdivision (O) |
| Framingham Subdivision (R) |
| Franklin (MBTA) Subdivision (O,R) |
| Greenbush (MBTA) Subdivision (O) |
| Haverhill (MBTA) Subdivision (O) |
| Kingston (MBTA) Subdivision (O,R) |
| Lowell (MBTA) Subdivision (O,R) |
| Middleborough (MBTA) Subdivision (R) |
| Needham (MBTA) Subdivision (O,R) |
| Newburyport (MBTA) Subdivision (O) |
| Northeast Corridor (CT,MA,RI) (O,R) |
| North Station (MBTA) Subdivision (O) |
| Old Colony (MBTA) Subdivision (O) |
| Patriot Corridor (O) |
| Rockport (MBTA) Subdivision (O) |
| Stoughton (MBTA) Subdivision (O) |
