Green - D
Union Square (East)
Green - E
Heath Street (West)
Medford/Tufts (East)
Orange
Back Bay (South)
???
Oak Grove (North)
????
Fitchburg Line
North Station (Inbound)
Haverhill Line
Haverhill (Outbound)
North Station (Inbound)
Lowell Line
North Station (Inbound)
Newburyport/Rockport Line
Newburyport (Outbound)
North Station (Inbound)